Tropical Animal Health and Production Tropical Animal Health and Production RSS feedThis is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Effects of evaporative cooling systems on the performance of lactating sows in a tropical climate
This study evaluated litter performance, behavioral and physiological parameters, and milk characteristics of sows submitted to different thermal environments. Fifty sows were distributed in a completely randomized design with two treatments: an evaporative cooling system (ECS) and a conventional system (CS). Sow and its litter were characterized as an experimental unit. The animals were weighed at equalization and weaning. Feed intake, milk production, and bromatological characteristics of milk were measured; the sows respiratory rate, rectal, and surface temperature were monitored. Litter uniformity was determined at equ...
Source: Tropical Animal Health and Production - January 23, 2024 Category: Veterinary Research Source Type: research

Growth, haemato-biochemical, hormonal and disease characteristics in Black Bengal goats: a review
AbstractThe goats have been considered one of the noteworthy animals to provide food security and could promote socio-economic upliftment under challenging climatic scenarios in the coming decades, particularly in the tropics. Black Bengal goat (BBG) is one of the recognised native meat-type breeds of hot-humid tropics with distinguished characteristics, including superior-quality meat, excellent skin and high prolificacy. Smaller body mass, lower metabolic rate and efficient utilisation of high-fibre forages enable BBG to adapt to a wide range of harsh climates in the tropics. The BBG can maintain physiological homeostasi...
Source: Tropical Animal Health and Production - January 23, 2024 Category: Veterinary Research Source Type: research

Semiochemical based integrated livestock pest control
AbstractThe role of arthropods as livestock pests has been well established. Besides their biting habits causing nuisance in animals; they are important vectors for transmission of economically important livestock diseases worldwide. Various pests and vector control managemental programs that also make use of chemicals have variable success rates. Consequently, insecticide/acaricide resistance has been reported against most of the commonly used chemicals along with increased concern for environment and demand for clean and green, residue-free animal products. This calls for an urgent need to develop novel, alternate, effec...
Source: Tropical Animal Health and Production - January 18, 2024 Category: Veterinary Research Source Type: research

Wool production and quality traits of pure- and crossbred Merino-type sheep
This study was therefore undertaken to elucidate the wool quality traits of four crossbred lines relative to Merinos and Dohne Merinos, which served as dam lines. Each dam line was mated to rams of their own breed as well as to Dormer or Ile de France rams to create four crossbred lines, namely, Dohne x Dormer, Dohne x Ile de France, Merino x Dormer, and Merino x Ile de France, in addition to the purebred Dohne Merino and Merino lines. Four rams and four ewes from each of these lines were reared up to one year of age under optimal growth conditions and shorn at the end of that time. Fleeces were weighed and samples collect...
Source: Tropical Animal Health and Production - January 18, 2024 Category: Veterinary Research Source Type: research

Dietary flaxseed cake influences on performance, quality, and sensory attributes of eggs, serum, and egg trace minerals of laying hens
AbstractNowadays, there is a global shortage in feed supply for animal nutrition; however, there are a considerable amount of agro-industrial co- and by-products that may offer a reasonable solution. Flaxseed cake (FSC) is a by-product of flaxseed for oil extraction rich in n-3 α-linolenic acid (ALA). Thus, the dietary inclusion of FSC on laying performance, egg quality, and serum and egg trace elements (Se, Zn, and Fe) was evaluated using Hisex White hens. The hens were distributed to three equal experimental treatments and provided diets including 0%, 5%, or 10% FSC fro m 48 to 58 weeks of age. Findings clarified that ...
Source: Tropical Animal Health and Production - January 18, 2024 Category: Veterinary Research Source Type: research

Performance, feed efficiency, feeding behavior, and cortisol concentration of lambs ranked for Residual Feed Intake and Residual Intake and Gain
This study aimed to evaluate the performance, feed efficiency, feeding behavior, and cortisol concentrations of lambs ranked into different groups of Residual Feed Intake (RFI) and Residual Intake and Gain (RIG). Forty Santa In ês lambs with a mean initial age of 120 ± 30 days and mean initial (IBW) and final body weight (FBW) of 28.9 ± 3.2 and 43.7 ± 3.9 kg, respectively, were used. The animals were fed at an automatic feed and water station (Intergado®) for 60 days and classified at the end of the experiment as low- RFI/RIG, medium-RFI/RIG, and high-RFI/RIG according to RFI and RIG. Performance, feed efficiency meas...
Source: Tropical Animal Health and Production - January 18, 2024 Category: Veterinary Research Source Type: research

Histopathological changes and oxidative stress associated with Fascioliasis in bovines
In this study, our objective was to gain insight into the pathophysiological consequences of Fascioliasis in cattle through the evaluation of metabolic, oxidative stress, and histological parameters. A thorough investigation was carried out on the liver of 197 bovines after their slaughter, which unveiled the occurrence of Fascioliasis, with a prevalence rate of 13.2% observed. The bovine that were infected exhibited notable increase in serum transaminases (ALT, AST, and ALP) and malondialdehyde (MDA) and catalase (CAT) while the decrease in glutathione (GSH) and superoxide dismutase (SOD) levels. The lipid profile analysi...
Source: Tropical Animal Health and Production - January 18, 2024 Category: Veterinary Research Source Type: research

Deciphering climate resilience in Indian cattle breeds by selection signature analyses
In this study, we utilized Bovine 50  K chip data and four genome scan techniques to assess the genetic regions of positive selection for high-temperature adaptation. We have also performed a genome-wide investigation of genetic diversity, inbreeding, and effective population size in our target dataset. We identified potential regions for selection that are likely to be caused by adverse climatic conditions. We observed many adaptation genes in several potential selection signature areas. These include genes likeHSPB2,HSPB3,HSP20,HSP90AB1,HSF4,HSPA1B,CLPB,GAP43,MITF, and MCHR1 which have been reported in the cattle popula...
Source: Tropical Animal Health and Production - January 17, 2024 Category: Veterinary Research Source Type: research

Dairy farmers ’ knowledge, awareness and practices regarding bovine lameness in Malaysian dairy farms
AbstractGiven the data paucity on dairy farmers ’ perspectives regarding bovine lameness and hoof diseases, particularly in South East Asian countries, this study was conducted to assess the knowledge, attitude and practices toward lameness and hoof health among dairy cattle farmers in Malaysia. An online-based and face-to-face survey was condu cted among 114 dairy farmers from four states in Peninsular Malaysia. Data were analysed using descriptive statistics, principal component analysis and an independent samplet-test. Overall, farmers demonstrated satisfactory knowledge and attitude regarding lameness and its impact ...
Source: Tropical Animal Health and Production - January 17, 2024 Category: Veterinary Research Source Type: research

Estimation of genetic parameters of Holstein calf survival
This study is helpful to understand the survival status of Holstein calves and provide a theoretical basis for improving the survival rate of calves. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 15, 2024 Category: Veterinary Research Source Type: research

The effect of Froriepia subpinnata on the performance, carcass characteristics, blood parameters, immune system, microbial population, intestinal morphology, and breast meat fatty acid content of broiler chickens
AbstractThe present experiment was conducted to investigate the effects ofF. subpinnata powder (FSP) on the performance, carcass characteristics, blood parameters, immune system, microbial population, intestinal morphology, and percentage of fatty acids in the breast meat of broiler chickens. A total of 300  day-old male chickens from the ROSS 308 strain were used in the form of a completely random design with four treatments of five replicates (15 birds each). The experimental treatments were, respectively, (1) control with base diet (without additives), (2) base diet + 1% FSP, (3) base diet +  2% FSP, and (4) ba...
Source: Tropical Animal Health and Production - January 13, 2024 Category: Veterinary Research Source Type: research

Effect of pregnancy and feeding level on voluntary intake, digestion, and microbial nitrogen synthesis in Zebu beef cows
The objective of this research was to evaluate how pregnancy and feeding regimens affect the feed intake, digestibility, and efficiency of microbial nitrogen (N) synthesis in beef cows. Forty-four multiparous Nellore cows, comprising 32 gestating and 12 non-gestating cows, with an average weight of 451  ± 10 kg, were assigned to either a HIGH (ad libitum) or LOW (limited feeding at 1.2 times maintenance based on the NRC) feeding regimen during the gestational period. The dry matter intake (DMI) in kg/d was significantly greater (P <  0.01) in HIGH-fed cows. The DMI reduced (P <  0.05) in proportion to t...
Source: Tropical Animal Health and Production - January 12, 2024 Category: Veterinary Research Source Type: research

Prediction of body weight of Curraleiro P é-Duro cattle based on morphometric measurements
AbstractCattle weight development is highly correlated with some body measurements. Based on the relationship between morphometric measurements and body mass, our aim was to develop regression equations to estimate the body weight of Curraleiro P é-Duro (CPD) cattle to be used in farms that lack access to weighting scales. Data from 1023 animals from four farms on withers height (WH), body length (BL), body score (BS), heart girth (HG), permanent teeth (PT), scrotal perimeter (SP), and live weight were used. The animals were classified into five categories depending on age and/or sex: newborns (NB), calves, weaned animals...
Source: Tropical Animal Health and Production - January 12, 2024 Category: Veterinary Research Source Type: research

Effect of ambient lead on progesterone and pregnancy-associated glycoprotein 1 and their relationship with abortion in Zaraibi goats: a field study
In conclusion, pollution-induced increases in Pb bioavailability resulted in dramatic decreases in P4 and PAG1 levels, leading to abortions. PAG1 and P4 levels are also key factors in determining whether Zaraibi goats will give birth to twins. (Source: Tropical Animal Health and Production)
Source: Tropical Animal Health and Production - January 12, 2024 Category: Veterinary Research Source Type: research

Spatio-temporal dynamics and distributional trend analysis of African swine fever outbreaks (2020 –2021) in North-East India
AbstractAfrican swine fever (ASF) is a highly contagious, notifiable, and fatal hemorrhagic viral disease affecting domestic and wild pigs. The disease was reported for the first time in India during 2020, resulted in serious outbreaks and economic loss in North-Eastern  (NE) parts, since 47% of the Indian pig population is distributed in the NE region. The present study focused on analyzing the spatial autocorrelation, spatio-temporal patterns, and directional trend of the disease in NE India during 2020–2021. The ASF outbreak data (2020–2021) were collected from the offices of the Department of Animal Husbandry and...
Source: Tropical Animal Health and Production - January 11, 2024 Category: Veterinary Research Source Type: research