Effects of concentrate levels and pineapple stem on growth performance, carcass and meat quality of dairy steers
The objective of this study was to determine a suitable level of concentrate using pineapple stem by-product as a roughage source for the growth performance, carcass traits and meat quality of Holstein steer. Forty Holstein steers with an average initial body weight of 404.2  ± 38.2 kg (18 months of age) were used in a completely randomised design. The treatments consisted of four levels of restricted concentrate (4, 5, 6 and 7 kg/head/day as fed basis), and the animals were fed ad libitum pineapple stem by-product as a roughage source. The data were analysed by using orthogonal polynomi...
Source: Tropical Animal Health and Production - January 20, 2020 Category: Veterinary Research Source Type: research

Nutritional effects of using cactus cladodes (Opuntia stricta Haw Haw) to replace sorghum silage in sheep diet
In conclusion, we recommend replacing 80% of the sorghum silage with CC in sheep diets (with 35% concentrate), as CC was found to substantially increase the intake of nutrients, primarily energy. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 18, 2020 Category: Veterinary Research Source Type: research

Relationship between gain rate during the growing phase and forage allowance in the finishing phase in Nellore cattle
AbstractThe study evaluated the effect of gain rates during the growing phase and the possible interaction with finishing phase forage allowance in beef cattle. In Exp. 1, eighty Nellore cattle (386  ± 7.90 kg; divided into 16 paddocks) were used in a randomized block design in a 2 × 2 factorial arrangement of treatments: (1) gain rate during the growing phase (low and high); (2) forage allowance during the finishing phase (low and high). In Exp. 2, twelve cannulated animals were use d to evaluate ruminal parameters at the finishing phase. The animals were supplemented (2% of b...
Source: Tropical Animal Health and Production - January 18, 2020 Category: Veterinary Research Source Type: research

Whole-crop triticale silage for dairy cows grazing perennial ryegrass ( Lolium perenne ) or tall fescue ( Lolium arundinaceum ) pastures in small-scale dairy systems during the dry season in the highlands of Mexico
The objective was to assess on-farm the production of dairy cows complemented with triticale silage (X. Triticosecale Witt. (TSL)) at two levels of inclusion (5.0 and 7.5  kg DM/d), grazing pastures of two grass species during the dry season: perennial ryegrass (PRG;Lolium perenne) or tall fescue (TFC;Lolium arundinaceum) (TFC) with white clover (Trifolium repens), and 4.65  kg DM/d concentrate. Experimental design was a 2 × 2 factorial in repeated 4 × 4 Latin squares. Chemical composition of TSL was 96 g CP/kg DM, 667 g NDF/kg DM, 713 g in vitro enzymatic dige...
Source: Tropical Animal Health and Production - January 18, 2020 Category: Veterinary Research Source Type: research

Effect of dietary pomegranate by-product extract supplementation on growth performance, digestibility, and antioxidant status of growing rabbit
AbstractThe study objective was to investigate the effect of three levels of dietary pomegranate by-product extract (PBE) (100, 150, and 200  mg) on growth performance, nutrient digestibility, carcass characteristics, and some blood parameters. Sixty weaned New Zealand White (NZW) rabbits at 5 weeks of age with an average body weight 561.67 ± 6.68 g were randomly allotted to four dietary groups; each group included three replicat es (five rabbits each). The control group was fed a basal diet without PBE; the other three experimental groups fed diets supplemented with PBE at 100-, 150-, a...
Source: Tropical Animal Health and Production - January 18, 2020 Category: Veterinary Research Source Type: research

An investigation on the prevalence of peste des petits ruminants in the camels of Sindh, Pakistan
AbstractThe present study investigated the status of peste des petits ruminants (PPR) for the first time in the camels of Pakistan. The samples were collected from the camel residing area of Sindh, Pakistan, and analyzed for breeds (Dhatti and Larri), districts (Tharparkar and Umerkot), age (young, adult, and old), and sexes (male and female). The sera samples (n = 200) were analyzed for the detection of antibodies using a competitive enzyme-linked immunosorbent assay (cELISA). Moreover, the nasal and fecal samples were screened for the PPR virus. Finally, the positive nasal and fecal samples were validated u...
Source: Tropical Animal Health and Production - January 17, 2020 Category: Veterinary Research Source Type: research

Vitamin A, calcium, phosphorus and magnesium status of heifers grazing in Northern Cyprus
In conclusion, all the parameters found were within the expected ranges but affected by seasonal changes. Therefore, we think that calcium and phosphorus supplementation in winter and vitamin A and magnesium supplementation in summer will provide positive results on cattle. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 17, 2020 Category: Veterinary Research Source Type: research

Short communication : dietary vitamin a restriction may improve meat quality parameters in fat-tailed lambs
AbstractThirty fat-tailed Mehraban ram lambs were randomly allotted into three vitamin A (VA) dietary treatment groups: either 100 (VA100), 50 (VA50), or 25% (VA25) of the recommended daily vitamin A requirements. Treatment had no effect on feed intake, daily live weight gain, cold carcass weight, and dressing percentage. InM. longissimus lumborum (LL) of VA100 lambs, malondialdehyde level was greater, but ether-extractable intramuscular fat concentration was lower. The proportion of C16:0 and C20:0 fatty acids in total fatty acids of LL was lower in VA100 lambs, compared to VA50 and VA25 lambs. Conversely, greater proport...
Source: Tropical Animal Health and Production - January 17, 2020 Category: Veterinary Research Source Type: research

Growth performance, hemato-biochemical indices, thyroid activity, antioxidant status, and immune response of growing Japanese quail fed diet with full-fat canola seeds
In conclusion, studied levels of FFCS, however, were not able to promote t he growth rate of growing Japanese quails; they were more effective in boosting their antioxidant status and humoral immune response. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 16, 2020 Category: Veterinary Research Source Type: research

A molecular prevalence survey on Anaplasma infection among domestic ruminants in Khartoum State, Sudan
This study was conducted in Khartoum State, Sudan to determine the prevalence and the risk factors associated withAnaplasma andEhrlichia species infections in domestic ruminants. Blood samples were collected from a total of 594 animals from 32 different farms distributed in the three provinces of Khartoum State. Among the 196 cattle, 200 sheep, and 198 goats examined using PCR, 13.27%, 32.50%, and 35.86% were infected withAnaplasma spp., respectively, with an overall prevalence of 27.27%. Cattle were infected withA. marginale (10.71%),A. centrale (2.04%), andA. ovis (0.51%), while sheep and goats were infected withA. ovis ...
Source: Tropical Animal Health and Production - January 14, 2020 Category: Veterinary Research Source Type: research

Extraction and purification of β-glucanase from bovine rumen fungus Trichoderma reesei and its effect on performance, carcass characteristics, microbial flora, plasma biochemical parameters, and immunity in a local broiler hybrid Golpayegan-Ross
AbstractThe enzyme β-glucanase was extracted fromTrichoderma reesei in bovine rumen fluid samples collected from a slaughterhouse and its effect was investigated in broilers. Data collected was broiler performance, carcass characteristics, duodenum microbial flora, hematological, and immunological parameters. β-glucanase activity was assayed through spectrometry and was approximately 0.434 IU per gram culture medium. In the current study, endoglucanase enzymes were extracted fromTrichoderma reesei. A total of 160 local broilers (Golpayegan-Ross hybrid) were allocated to 4 treatments with 4 replicates per tre...
Source: Tropical Animal Health and Production - January 14, 2020 Category: Veterinary Research Source Type: research

Molecular surveillance of viral pathogens associated with diarrhea in pre-weaned Korean native calves
This study investigated the prevalence of bovine coronavirus (BCoV), bovine norovirus (BNoV), bovine group A rotavirus (BoRVA), and bovine torovirus (BToV) in calves aged ≤ 60 days, regardless of diarrhea, across nine different regions in the Republic of Korea (ROK) and reported associations between these viruses and diarrhea. Fecal samples were collected rectally from 689 calves: normal (n = 360) and diarrheic (n = 329). BNoV (84/689, 12.2%) was the most prevalent regardless of diarrhea, followed by BCoV (37/689, 5.4%), BToV (15/689, 2.2%), and BoRVA (13/689, 1.9%). Although BCoV...
Source: Tropical Animal Health and Production - January 11, 2020 Category: Veterinary Research Source Type: research

Impact of high-concentrate diets with cottonseed associated with calcium lignosulfonate on the metabolic, productive, and carcass characteristics of feedlot lambs
This study aimed to evaluate the metabolic, productive, and carcass parameters of feedlot lambs fed high-concentrate diets with cottonseed associated with calcium lignosulfonate. Treatments consisted of diets including whole cottonseed, crushed cottonseed, whole cottonseed with lignosulfonate (100  g/kg), crushed cottonseed with lignosulfonate (100 g/kg), and a control diet without cottonseed. Thirty ½ Dorper ½ Santa Inês, non-castrated male lambs with an average live weight of 24.9 ± 3.6 kg and an average age of 3.5 months were evaluated in a completely randomiz...
Source: Tropical Animal Health and Production - January 11, 2020 Category: Veterinary Research Source Type: research

Nutrient intake and ingestive behavior of feedlot steers fed with licuri cake
The objective of this study was to evaluate the effects of the inclusion of different levels of licuri cake on the consumption of dry matter and nutrients and ingestive behavior of feedlot crossbred steers. Forty-four crossbred steers with an average age of 24  months and a mean live weight of 358.19 ± 41.57 kg were used in the study. The animals were aleatorically distributed in a completely randomized design made up of four treatments, with 11 animals used per treatment: the control treatment (without the inclusion of licuri cake in the diet) and treatment with the inclusion levels of 8.5, ...
Source: Tropical Animal Health and Production - January 8, 2020 Category: Veterinary Research Source Type: research

Livestock diversification prospects for climate change adaptation in Dangila district, Ethiopia
This study was intended to assess the role of livestock diversification in minimizing climate change adverse impacts on livelihood assets in Dangila district, Ethiopia. A random sampling technique was used, and 107 sample households were selected. Primary data were collected through field visit and interview, whereas secondary data were collected from the district agricultural office and meteorological stations. To analyze the data, descriptive statistics, correlation and multiple linear regressions were used for testing the hypotheses. Accordingly, the results revealed that weather shocks affected livelihood assets negati...
Source: Tropical Animal Health and Production - January 7, 2020 Category: Veterinary Research Source Type: research

Population structure of indigenous southern African goats based on the Illumina Goat50K SNP panel
In this study, the genetic structure of indigenous Tswana and Swazi goats using the Illumina Goat50K SNP array was investigated. Two South African commercial goat breeds were included to investigate admixture with the indigenous populations in southern Africa. A total of 144 DNA samples including Boer goats (n = 24), Kalahari Red (n = 24), Swazi (n = 48), and Tswana goats (n = 48) were genotyped. Statistical analysis was performed using PLINK version 1.07. Genetic diversity, measured as expected heterozygosity, was estimated at 0.390, 0.398, 0.413, and 0.387 for Boer,...
Source: Tropical Animal Health and Production - January 6, 2020 Category: Veterinary Research Source Type: research

Potential of ethno-veterinary medicine in animal health care practices in the South Pacific Island countries: a review
AbstractThe South Pacific island countries (SPIC) are among the most vulnerable countries in the world to economic shocks, climate change and natural disasters. Agriculture including livestock production makes important contribution to socio-economic development in the region. However, the livestock sector is marred by many livestock diseases, which are crippling the economies as well as threatening the food security of the island nations, most of which have high dependence on imports. Limited veterinary medical facilities, high cost of conventional medicine and remoteness of some rural farming communities make it difficul...
Source: Tropical Animal Health and Production - January 4, 2020 Category: Veterinary Research Source Type: research

Epidemiological study of goat ’s gastrointestinal nematodes in the North West of Algeria
AbstractAn epidemiological study of gastrointestinal nematodes was carried out in naturally infected goats in the North West of Algeria. Coprological analyses were performed for 2  years from January 2014 to December 2015.Examination of 1591 goat samples revealed an overall prevalence of parasite eggs in feces of 96%; the values were very similar in both years at 97% in 2014 and 94.96% in 2015. Five types of nematode eggs were identified: strongyle (95.5%),Nematodirus spp. (19.4%),Marshallagia spp. (3.9%),Trichuris spp. (0.6%), andSkrjabinema spp. (2%).Also, fecal cultures showed the presence ofTeladorsagia spp. (56%)...
Source: Tropical Animal Health and Production - January 3, 2020 Category: Veterinary Research Source Type: research

Phylogenetic analysis of Salmonella species isolated from cows, buffaloes, and humans based on gyrB gene sequences
In conclusion, cows and buffaloes act as reservoirs ofSalmonella infection in dairy farms in Egypt and contribute a risk of zoonotic transmission to human. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 3, 2020 Category: Veterinary Research Source Type: research

The effect of pre-breeding vitamin E and selenium injection on reproductive performance, antioxidant status, and progesterone concentration in estrus-synchronized Mehraban ewes
AbstractThe present study was conducted to assess the effects of pre-breeding vitamin E and selenium (ESe) injections on the reproductive performance, antioxidant status, and serum progesterone (P4) concentration in estrus-synchronized Mehraban ewes. During the breeding season, 38 ewes (3 –4 years) were divided into two groups (n = 18), and the synchronization of estrus was achieved by intravaginal insertion of 0.3 g progesterone CIDR device for 13 days followed by 350 IU eCG at CIDR withdrawal. Ewes were kept under pasture conditions and exposed to Mehraban rams 48 h following ...
Source: Tropical Animal Health and Production - January 3, 2020 Category: Veterinary Research Source Type: research

Importance of livestock diseases identified using participatory epidemiology in the highlands of Ethiopia
In conclusion, participatory too ls allowed understanding disease priorities of and their perceived epidemiology in smallholder systems. The perceptions and priorities of men and women are very similar, and both need to be involved in designing health management interventions. Based on the findings of this study, the intervention s trategies listed in the 2013 animal health strategy of Ethiopia (MoA and ILRI2013) seem pertinent and need to be implemented to overcome the challenges of diseases. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 3, 2020 Category: Veterinary Research Source Type: research

Effect of reducing energy intake during the dry period on milk production, udder health, and body condition score of Jersey crossbred cows in the tropical lower Gangetic region
AbstractTo find out the effect of reducing energy intake during dry period on milk production, udder health, and body condition, the experiment was conducted on 14 Jersey crossbred cows during whole dry period and continued up to 120  days of lactation. Reduction in energy intake was done during far-off period for each dry cow of treatment group as compared to control group. Statistically analyzed data revealed that overall significantly (P 
Source: Tropical Animal Health and Production - January 3, 2020 Category: Veterinary Research Source Type: research

The prebiotic potential of brewers ’ spent grain on livestock’s health: a review
AbstractThe increasing interest from the feed as a source of energy towards specific nutrient-yielding compounds in feeds is amongst the latest developments from scientific and industrial communities. Apart from brewers ’ spent grain (BSG) being relatively inexpensive feed source, nutritious with high crude protein and minerals, recent studies have explored its potential as a source of prebiotics. Prebiotics are certain feeds that are comprised of non-digestive polysaccharides that can be fed to animals and modul ate the balance and activities of microbial populations in the gut. The BSG contains arabinoxylans and &b...
Source: Tropical Animal Health and Production - January 3, 2020 Category: Veterinary Research Source Type: research

Influence of a diet containing plant ingredients at different levels on growth performance, carcass biochemical composition, and blood parameters in Indian major carps grown in polyculture earthen ponds
AbstractThe effect of feeding levels of plant ingredient-based diet on growth, body composition, and serological constituents of Indian major carps was determined in pond culture condition. Juveniles of Indian major carps (IMCs),Catla catla (catla, 65.87  ± 2.45 g),Labeo rohita (rohu, 64.67  ± 2.15 g), andCirrhinus mrigala (mrigal, 39.58  ± 3.49 g) were fed 1%, 1.5%, 2%, and 2.5% of the body weight for a period of 150 days. At the end, the total production was significantly higher at 2.0% feeding level and did not change thereafter. The nutr...
Source: Tropical Animal Health and Production - January 3, 2020 Category: Veterinary Research Source Type: research

The breeding structure for the small ruminant resources in India
The objective of the research was to assess the impact ofNe on the genetic architecture of the population in a simulated data with variableNe for general population under selection. Along with this, the estimate ofNe and its ratio to adult breeding population (NB) in the census data of small ruminants of India were also investigated. Results indicated that the average inbreeding (\( \overline{F_i} \)) decreases with increase inNe; similarly, increase in\( \overline{F_i} \) per generation was highest in population with lowestNe. Correlation of estimated breeding value (EBV) with true breeding value (TBV) was not much affect...
Source: Tropical Animal Health and Production - January 2, 2020 Category: Veterinary Research Source Type: research

Effect of supplementation of multiple enzymes to the diets containing variable protein sources on performance and nutrient utilization in commercial broilers
AbstractThe effect of supplementation of multiple enzymes at 0, 1X, and 2X concentration to the diet containing variable protein sources (replacement of soybean meal with 10% guar meal (GM), 10% rapeseed meal (RSM), and 10% cottonseed meal (CSM)) was studied in a factorial manner on performance, carcass yield, protein, and energy utilization in commercial broiler males. For this purpose, 600-day-old commercial male broiler chicks (Ross) were randomly divided into 12 treatment groups with 10 replications of 5 birds each and reared in battery brooders up to 42  days of age. Treatment groups are as follows: T1 control an...
Source: Tropical Animal Health and Production - January 2, 2020 Category: Veterinary Research Source Type: research

Camelids: new players in the international animal production context
This article aims to review some of the recent literature about the meat, milk, and hair fiber production in the six existing camelid species highlighting their benefits and drawbacks, overall contributing to the development of camelid production in the framework of food security. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 2, 2020 Category: Veterinary Research Source Type: research

Parasitism in Angus x Nellore heifers in a silvopastoral system
AbstractThe influence of shade in the silvopastoral system on the performance and degree of parasitism by endo- and ectoparasites in Angus x Nellore heifers was assessed. The experiment was conducted with 72 heifers, with an initial mean weight of 276  ± 5.67 kg and 9 months of age, in a total area of 25 ha, divided into 12 paddocks, with three treatments and four replicates. The experimental design was a randomized complete block design, to evaluate the conventional grazing system (CGS) without shade and silvopastoral systems with simple line (SPS1) or triple lines (SPS3) of eucalyptus....
Source: Tropical Animal Health and Production - January 2, 2020 Category: Veterinary Research Source Type: research

The efficacy and performance impact of Fostera PRRS in a Vietnamese commercial pig farm naturally challenged by a highly pathogenic PRRS virus
AbstractHighly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) is characterized by high fever, respiratory distress, and high mortality in pigs of all ages and has severely affected the Vietnam pork industry in recent years. The study was conducted to compare the efficacy, safety, and overall performance of a modified live PRRSV-2 vaccine (Fostera PRRS) to an existing PRRSV modified live vaccine on a farm with a recent history of HP-PRRSV-associated respiratory diseases. A total of 351 pigs were randomly allocated to three treatment groups: (i) vaccinated with Fostera PRRS at 1  day of age (n...
Source: Tropical Animal Health and Production - January 2, 2020 Category: Veterinary Research Source Type: research

Genome-wide discovery of SNPs in candidate genes related to production and fertility traits in Sahiwal cattle
AbstractThe present study was carried out to identify genome-wide genetic markers and variants in candidate genes for production and reproduction traits in Sahiwal cattle using a cost-effective reduced representation sequencing method. A total of 258,231 genome-wide SNPs were identified in Sahiwal cattle with reference toBos indicus genome, of which 150,231 were novel SNPs. Among the high-confidence SNPs identified, 91.86% and 27.30% were genotyped in 50% and 100% of the samples. Mapping of the identified SNPs revealed 525 SNPs in candidate genes related to production traits while 333 SNPs were mapped to candidate genes re...
Source: Tropical Animal Health and Production - December 23, 2019 Category: Veterinary Research Source Type: research

Efficacy of VERYL ® in the treatment of cattle naturally infected with gastro-intestinal nematodes in Kenya
AbstractCo-infections caused by trypanosomes and gastro-intestinal nematodes (GINs) compromise cattle productivity and their control requires a holistic approach. The effectiveness of trypanocides and anthelmintics is compromised by increasing resistance. Use of combined chemotherapeutic products for synergy, mainly practiced in human medicine, is gaining importance in livestock. A trial to evaluate efficacy of VERYL ®, containing diminazene diaceturate (3.5 mg/kg body weight) and levamisole chloride (5 mg/kg body weight) for the control of GINs in cattle, was conducted at KALRO-VSRI Muguga, Kenya, between Ju...
Source: Tropical Animal Health and Production - December 21, 2019 Category: Veterinary Research Source Type: research

High occurrence of CMY-2-type beta-lactamase-producing Escherichia coli among broiler flocks in Turkey
In this study, the prevalence of ESBL/pAmpC-producingEscherichia coli and their molecular characterization from cloacal swab samples were investigated. All samples were obtained from broiler flocks that are located in Hatay, Adana, and Mersin provinces of Turkey. Antimicrobial susceptibilities of the isolates were determined by disk diffusion method following the CLSI criteria. Genetic mechanisms mediating resistance in ESBL/pAmpC-producingE. coli isolates were identified by polymerase chain reaction (PCR) and followed by DNA sequencing. Phylogenetic groups and plasmid replicon types of the isolates were also investigated ...
Source: Tropical Animal Health and Production - December 19, 2019 Category: Veterinary Research Source Type: research

Management strategies, reproductive performance and causes of infertility in sheep flocks in the central region of Saudi Arabia
In conclusion, reproductive efficiency of sheep in the central area of Saudi Arabia could be improved by reforming some management approaches, justifying workers/animals r atio, instructing sheep breeders, and controlling genital diseases. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - December 19, 2019 Category: Veterinary Research Source Type: research

Brazilian Sport Horse: genetic parameters for approval of Brasileiro de Hipismo stallions
AbstractThe aim of this study was to evaluate genetic parameters for subjective scores given at the Brazilian Sport Horse (BSH) Stallion Approval by estimating heritability (h2) for morphological, gait, and jumping traits and genetic correlations (γg) among the functional ones and by verifying selection feasibility. The analysis included 1179 complete evaluations from 294 horses, by 4.26  ± 0.96 judges. Each trait was evaluated using mixed models in SAS® v9.2, considering the individual as a random effect. Variance components and genetic parameters were obtained by single and two-trait animal...
Source: Tropical Animal Health and Production - December 19, 2019 Category: Veterinary Research Source Type: research

Chromium supplementation improves glucose metabolism and vaginal temperature regulation in Girolando cows under heat stress conditions in a climatic chamber
In conclusion, chromium supplementation improved glucose metabolism and prevented body temperature increases under heat stress conditions. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - December 18, 2019 Category: Veterinary Research Source Type: research

Applicability of teeth examination as a tool for age estimation in a semi-arid cattle production environment in Namibia
AbstractRegression analysis was used to evaluate teeth examination as a tool for estimating age in beef and dairy cattle at Neudamm farm, Namibia, in 2018. There was a significant difference in age (months) between the overall mean actual age (M=60, SD=4.57) and the mean estimated age (M=57, SD=4.52 months) in beef cattle; t(74) = 3.61,p
Source: Tropical Animal Health and Production - December 18, 2019 Category: Veterinary Research Source Type: research

Enteric methane emissions of grazing short-horn zebu weaner bulls vary with estimation method and level of crude protein supplementation
AbstractLow nutrient intake of short-horn zebu (SHZ) cattle raised under extensive grazing systems results in delayed attainment of mature market weights and consequently increased methane production over time. The purpose of this study was to evaluate and compare the effect of providing grazing SHZ weaner bulls with a supplement varying in crude protein on methane emission using the Intergovernmental Panel on Climate Change (IPCC) Tier 2 and a modified Tier 3 approaches. Weaner bulls were allocated to four treatments: grazing only (GZ), grazing plus a supplement containing either 90 (GZS_90), 110 (GZS_110), or 130 g CP/kg...
Source: Tropical Animal Health and Production - December 18, 2019 Category: Veterinary Research Source Type: research

Genome-wide association studies for the concentrations of insulin, triiodothyronine, and thyroxine in Chinese Holstein cattle
AbstractTo further understand the genetic structure that is associated with insulin (INS) and thyroid hormones (TH), including triiodothyronine (T3) and thyroxine (T4), in Chinese Holstein cows, we conducted a genome-wide association study (GWAS) of thyroid hormones and insulin in cows. We conducted GWAS analysis on 1217 Chinese Holstein cows raised in southern China and found 19 significant single nucleotide polymorphisms (SNPs) in this study: 10 SNPs were associated with INS, 5 SNPs were associated with T3, and 4 SNPs were associated with T4. In our study, the GWAS method was used for preliminary screening on related gen...
Source: Tropical Animal Health and Production - December 18, 2019 Category: Veterinary Research Source Type: research

Relationship between population genomic structure and growth profiles of South African goats under different production systems
This study investigated the growth profiles and genomic structure of SA indigenous breeds raised in different production systems to unravel the genetic potential of indigenous goat populations. Live weights and morphological body measurements were collected from a total of 83 kids representing the commercial meat-producing SA Boer (n = 14); the indigenous veld goats (IVG) of NC Skilder (n = 14), Mbuzi (n = 13), and Xhosa lob (n = 14) raised under intensive systems; and nondescript village goat populations (n = 14) raised in intensive and others (n = 14) raised in extensive production systems. The remaining 72 of 83 phenoty...
Source: Tropical Animal Health and Production - December 18, 2019 Category: Veterinary Research Source Type: research

Reproductive and productive performance, udder health, and conformation traits of purebred Holstein, F1, and R1 crossbred Holstein × Simmental cows
The objective of this study was to compare the reproductive performance, milk yield and composition, and udder health and conformation traits of Holstein (Ho), F1, and R1 crossbred Ho × Simmental (Sim) cows. Three commercial dairy farms in south Brazil were used as the research units. All farms held Ho, F1, and R1 crossbred Ho × Sim (¾ Ho × ¼ Sim and ¾ Sim × ¼ Ho) cows. The collection of milk samples and evaluation of udder conformation traits occurred during four visits to each farm. In addition to the actively collected data, retrospective reproduction records of the fa...
Source: Tropical Animal Health and Production - December 17, 2019 Category: Veterinary Research Source Type: research

Histomorphometric changes of the fore-stomach of lambs fed with diets containing spineless cactus genotypes resistant to Dactylopius sp.
AbstractThe histomorphometric parameters of the fore-stomach epithelium of lambs fed with spineless cactus genotypes resistant toDactylopius sp. were evaluated. Thirty-two lambs (23.0 ± 2.06 kg body weight) were distributed in a completely randomized design with four treatments and eight replications. The treatments consisted of the base diet and diets in which part of the elephant grass hay and all ground corn was replaced by theMi úda,IPA-Sert ânia, orOrelha de Elefante Mexicana (OEM) spineless cacti. The keratin layers of the ruminal epithelium of the animals consuming the spineless cactiMi úd...
Source: Tropical Animal Health and Production - December 17, 2019 Category: Veterinary Research Source Type: research

Correction to: Effect of enzymatic hydrolysate of cottonseed protein supplementation on growth performance and intestinal health of nursery pigs in Thailand
In the originally published article, the sentence “It was prepared from carefully selected soybean meal and was processed by enzymatic hydrolysis into small peptide.” in the section Materials and methods was incorrect. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - December 17, 2019 Category: Veterinary Research Source Type: research

Prevalence and characterization of Staphylococcus aureus isolated in raw milk from cows in Hokkaido, Japan
AbstractThe aim of this study was to characterize the phenotypes and genotypes ofStaphylococcus aureus isolated from raw bovine milk in Hokkaido, Japan.S. aureus isolates were identified in 135 of 436 milk samples from cows with and without signs of mastitis from three farms in Hokkaido. These clinical isolates were characterized for antimicrobial susceptibility patterns, molecular typing using phage-open-reading frame typing (POT), coagulase gene type, virulence genes, and biofilm-associated genes and were evaluated for biofilm-forming ability. Most isolates were susceptible to the antimicrobial agents tested. The highest...
Source: Tropical Animal Health and Production - December 16, 2019 Category: Veterinary Research Source Type: research

Indigenous medicinal uses, toxicity, and chemical composition of browsing plant used by camel in Ethiopia Somali Regional State: a survey
AbstractCamels (Camelus dromedarius) have access to different browsing plant that is a major source of feed and therapeutic value but also has the potential to cause poisoning to the camel. A survey was conducted between July and September 2017 to generate information on medicinal uses, toxicity, and chemical composition of major browsing plant in the Somali Regional State of Ethiopia. A total of 150 respondents were interviewed using a structured questionnaire, and supplementary information was gathered through field observation and focus group discussions. The study showed 13 medicinal plants as being used by the respond...
Source: Tropical Animal Health and Production - December 16, 2019 Category: Veterinary Research Source Type: research

The replacement of grass hay by cassava foliage hay or spineless cactus improves lamb performance
AbstractThe aim of this study was to evaluate the effect of partial or total replacement of Tifton 85 hay with cassava foliage hay and/or spineless cactus on the weight gain, body measurements, ingestive behaviour, and parasite infection of confined sheep. Thirty-five non-castrated male lambs with no defined breed were housed in individual pens for 90 days. Five treatments in a complete mixture were offered twice a day: Tifton hay (TH), cassava foliage hay (CFH), Tifton hay + cassava foliage hay (TH + CFH), Tifton hay + spineless cactus (TH + SC), and cassava foliage hay + spineless cactus (CFH + SC). The data were evaluat...
Source: Tropical Animal Health and Production - December 14, 2019 Category: Veterinary Research Source Type: research

The effect of medroxyprogesterone acetate with or without eCG on conception rate of fat-tail ewes in out of breeding season
AbstractMany protocols of estrous synchronization in ewes have been developed in the last few decades. The aim of this study was the effect of intravaginal progestogen, medroxyprogesterone acetate (MPA), sponges (a progesterone analogue) with or without equine chorionic gonadotropin (eCG) in out of breeding season of fat-tailed Iranian Shaal breed anestrus ewes to estimate the conception rate in suburb of Tehran-Iran. In total, 50 non-cyclic ewes out of 85 ewes with  7 years old were selected for out of breeding season program in May–June 2018. They were distributed into two groups (control and treatment)...
Source: Tropical Animal Health and Production - December 14, 2019 Category: Veterinary Research Source Type: research

Evaluation of oxidative stress in caprine anaplasmosis and effect of vitamin E –selenium in monitoring oxidative stress
AbstractCaprine anaplasmosis is an economically important tick-borne rickettsial disease that affects goats all over the world. Microscopic examination of stained blood smears from 162 animals revealed inclusion bodies ofAnaplasma spp. in 24 cases. Genus specific PCR forAnaplasma spp. yielded positive results in 22 cases. All the diseased animals showed a significant fall in the mean values of antioxidants such as reduced glutathione, superoxide dismutase and catalase and a significant increase in the level of lipid peroxidation. Out of the 22 animals positive for anaplasmosis both in blood smear and PCR, 16 female non pre...
Source: Tropical Animal Health and Production - December 14, 2019 Category: Veterinary Research Source Type: research

Population structure of Simmental beef cattle using pedigree analysis
AbstractThe purpose of this study was to estimate parameters related to the population structure and genetic diversity in the Simental breed based on the pedigree information of 77,553 animals. The individual coefficients of inbreeding and average relatedness, number of complete generations, coefficient of change of inbreeding, effective size, effective number of founders, number of ancestors and generation interval were calculated. Using the Simmental cattle information, the mean inbreeding and average relatedness coefficients were 1.49% and 0.99%, respectively. The effective number of founders and ancestors was 163 and 1...
Source: Tropical Animal Health and Production - December 14, 2019 Category: Veterinary Research Source Type: research

Manipulating rumen fermentation, microbial protein synthesis, and mitigating methane production using bamboo grass pellet in swamp buffaloes
AbstractBamboo grass (Tiliacora triandra Diels) pellet (BP) was assessed as a rumen modifier on feed intake, rumen fermentation, nutrient digestibilities, microbial population, and methane production in swamp buffaloes. Four male swamp buffaloes with 350  ± 10 kg of body weight (BW) were allotted according to a 2 × 2 factorial arrangement in a 4 × 4 Latin square design. The treatments were as follows: roughage to concentrate ratio (R:C) at 70:30 (T1), R:C at 70:30 with BP supplementation at 150 g/day (T2), R:C at 30:70 (T3), and R:C at 30:70 with BP sup...
Source: Tropical Animal Health and Production - December 13, 2019 Category: Veterinary Research Source Type: research

Impact of dietary supplementation with Echinacea purpurea on growth performance, immunological, biochemical, and pathological finding in broiler chickens infected by pathogenic E. coli
This study is aimed to appraise the impact of  dietary supplementation withEchinacea purpurea (EP) in broiler chickens infected by pathogenicE. coli. Eighty-one-day-old chicks of both sexes, commercial Hubbard chicks, were divided into 4 groups. The first was kept as normal control, the second was  supplemented by EP (5 mg/kg feed) from the first day to the end, where the  third was infected orally by 1 mlE. coli O78 at  107 CFU intra-crop at 7 days old, while the last group was supplemented by EP and infected by theE. coli O78  as previously described .E. coli-infecte...
Source: Tropical Animal Health and Production - December 11, 2019 Category: Veterinary Research Source Type: research