Influence of litter size at birth and weaning on the proportion of Pelibuey ewes treated with an anthelmintic in a targeted selective scheme in the hot humid tropics
Publication date: March 2020Source: Small Ruminant Research, Volume 184Author(s): A.M. Aguirre-Serrano, N.F. Ojeda-Robertos, R. González-Garduño, J.A. Peralta-Torres, C. Luna-Palomera, J.F.J. Torres-AcostaAbstractThe present study described the effect of litter size at birth and weaning on the frequency of AH treatments of Pelibuey ewes in a targeted selective treatment (TST) scheme under hot humid tropical conditions. It also compared the time (days) elapsed from parturition to the moment when 50 % of ewes in each litter size category received an AH treatment. A prospective observational study was performed during six m...
Source: Small Ruminant Research - February 14, 2020 Category: Zoology Source Type: research
Comparative performance of Dorper and Rambouillet ewes on West Texas range
The objective of this experiment was to compare overall productivity between Dorper (n = 96) and Rambouillet (n = 100) ewes in West Texas commercial production conditions. Ewes originated from private flocks and were mated to produce terminal cross or purebred lambs, depending upon the year. These ewes generated 1,091 records of reproductive performance and lamb weights. Ewe traits included weight at the beginning of the fall breeding season, fertility (ewes that gave birth per ewe exposed), condition score, lambing interval, and stayability to 9 yr of age. Mixed linear models included flock of origin and ewe as ra...
Source: Small Ruminant Research - February 10, 2020 Category: Zoology Source Type: research
Contribution of small ruminants to food security for Ethiopian smallholder farmers
In conclusion, this study provides much needed evidence on how small ruminants contribute to different dimensions of food security and are promising entry points targeting women to improve food and nutritional security by providing adequate animal source foods in a household. (Source: Small Ruminant Research)
Source: Small Ruminant Research - February 6, 2020 Category: Zoology Source Type: research
Dietary supplementation of extruded linseed and calcium soap for augmenting meat attributes and fatty acid profile of longissimus thoracis muscle and adipose tissue in finisher Malpura lambs
Publication date: Available online 1 February 2020Source: Small Ruminant ResearchAuthor(s): R.S. Bhatt, Lalit Kumar Soni, A. Sahoo, Y.P. Gadekar, Srobana SarkarAbstractPresent study aimed meat production augmented with conjugated linoleic acid (CLA), essential fatty acids and polyunsaturated fatty acids (PUFA) by supplementation of linseed and Ca-soap in weaner lamb diets. Thirty-six, 3 month old Malpura lambs were randomly divided into three dietary treatments comprising of Control, linseed (10% crushed linseed) and Ca-soap (5% Ca-soap), fed for 90 days and slaughtered at 6 months of age to determine chemical composition ...
Source: Small Ruminant Research - February 2, 2020 Category: Zoology Source Type: research
Proportional hazard models associated with the survival of dairy goats reared in a tropical environment
In conclusion, STAY28 can be used as a selection criterion based on the aforementioned morphological and type traits, since it is effective to early detect individuals that will stay longer and more productive in a herd. Therefore, these traits should be considered in breeding programs. (Source: Small Ruminant Research)
Source: Small Ruminant Research - February 2, 2020 Category: Zoology Source Type: research
Editorial Board
Publication date: February 2020Source: Small Ruminant Research, Volume 183Author(s): (Source: Small Ruminant Research)
Source: Small Ruminant Research - January 26, 2020 Category: Zoology Source Type: research
Publisher Note
Publication date: February 2020Source: Small Ruminant Research, Volume 183Author(s): (Source: Small Ruminant Research)
Source: Small Ruminant Research - January 26, 2020 Category: Zoology Source Type: research
Pregnancy Specific Protein B concentration for the prediction of lambing rate in sheep
The objective of this study was to determine if PSPB could be used to accurately predict lambing rates in sheep. Samples were collected from 54 Dorset, Katahdin, or crossbred ewes at 28 days post ram removal which was approximately 46 days post breeding. Samples were processed using the quantitative BioPRYN® assay. Ewes carrying twins had greater (P < 0.001) PSPB concentrations that ewes that delivered singles, and triplets or quads tended (P = 0.09) to be greater than twins. This test could become an effective diagnostic tool for improving sheep flock management throughout gestation by providing producers ins...
Source: Small Ruminant Research - January 20, 2020 Category: Zoology Source Type: research
Investigating Ovine Placentome Blood Perfusion using Power Flow Doppler Ultrasonography
Publication date: Available online 17 January 2020Source: Small Ruminant ResearchAuthor(s): C.O. Lemley, K.J. Bowers, K.C. Yankey, M.L. Tu, C.G. Hart, C.S. Steadman, K.J. McCarty, M.P.T. OwenAbstractIncreasing ovine placentome blood perfusion improves placental efficiency while increasing the likelihood of healthier birth weights and lower mortality rates in offspring. Invasive surgical techniques have been used to examine uteroplacental blood flow; however, non-invasive Doppler ultrasonography has recently been observed as a reliable alternative method. Even so, smaller tissues, such as placentomes, do not permit reliable...
Source: Small Ruminant Research - January 18, 2020 Category: Zoology Source Type: research
Evaluation of global expression of selected genes as potential candidates for internal normalizing control during transcriptome analysis in dromedary camel (Camelus dromedarius)
ConclusionOur findings suggest that the GAPDH and ACTB genes can be used as stable reference genes for accurate normalization of gene expression data using qRT-PCR in the Camelus dromedarius.Graphical abstract (Source: Small Ruminant Research)
Source: Small Ruminant Research - January 14, 2020 Category: Zoology Source Type: research
Influence of lambing and litter size at birth or weaning on the proportion of Pelibuey ewes treated with an anthelmintic in a targeted selective scheme in the humid tropics
This study evaluated the effect of lambing and different litter sizes at birth and weaning on the frequency of anthelmintic (AH) treatments in a targeted selective treatment (TST) scheme under hot humid tropical conditions. A prospective observational study was performed during six months of the rainy season (June to December 2016), with 91 pregnant Pelibuey ewes and 40 non-pregnant ewes grazing the same pastures. Pregnant ewes were monitored from lambing to 75 days postpartum, while the non-pregnant ewes were monitored during 180 days. Body condition score (BCS), hematocrit (HT) and fecal egg counts (FEC) of GIN were esti...
Source: Small Ruminant Research - January 14, 2020 Category: Zoology Source Type: research
Morphometric measurements of the umbilical cord and placentomes and Doppler parameters of the umbilical artery through ultrasonographic analysis in pregnant sheep
Publication date: March 2020Source: Small Ruminant Research, Volume 184Author(s): Tomasz Stankiewicz, Barbara Błaszczyk, Jan Udała, Pavitra ChundekkadAbstractIn the study carried out, ultrasound measurements of placentomes, the umbilical cord and umbilical vessels and Doppler parameters in the umbilical artery during pregnancy in 15 Suffolk sheep were determined. The umbilical cord and placentomes were measured from the 50th to the 130th day of pregnancy (via B-Mode ultrasonography). The Doppler parameters were assessed from the 70th to the 130th day of pregnancy (via Color Doppler and pulsed wave Doppler ultrasonography...
Source: Small Ruminant Research - January 13, 2020 Category: Zoology Source Type: research
Influence of mutation in nucleoprotein of Peste-des-petits-ruminants virus (PPRV) isolated from 2016 Indian outbreak
Publication date: Available online 9 January 2020Source: Small Ruminant ResearchAuthor(s): Anurag R. Mishra, Prasana Kumar Rath, Susen Kumar Panda, Debasis NayakAbstractPeste des petits ruminants virus (PPRV) is an economically significant viral disease of small ruminants across the globe. Despite having efficacious vaccines and global eradication efforts, PRRV outbreaks still exist, particularly in developing countries. To better understand the viral isolates that circulate in India, we investigated clinical cases of PPRV outbreak that occurred in the Eastern Indian state of Odisha in the year 2016. We observed 90% morbid...
Source: Small Ruminant Research - January 10, 2020 Category: Zoology Source Type: research
Carcass and meat quality traits of grazing lambs are affected by supplementation during early post-weaning
Publication date: Available online 7 January 2020Source: Small Ruminant ResearchAuthor(s): Z. Ramos, I. De Barbieri, E. van Lier, F. MontossiAbstractThe effect iso-energetic supplements (2.9 Mcal/kg DM; 2% body weight as-dry fed basis) with different crude protein (CP) levels (12, 16 and 20% CP) during early post-weaning phase were evaluated on lamb carcass and meat quality traits. For three years (January-April; 2013, 2015 and 2016), eighty crossbreed lambs (Dohne Merino × Corriedale, with an initial average body weight -BW- of 24.5 ± 4.4 kg with 4 months of age) were randomly allotted each year to the followi...
Source: Small Ruminant Research - January 7, 2020 Category: Zoology Source Type: research
Prevalence, aetiology and risk factors of subclinical mastitis in goats in Bangladesh
This study shows that SCM in goats in Bangladesh is highly prevalent and suggests the importance of breeding for mastitis resistance, by selecting stronger breeds and goats with good udder or teat conformation. (Source: Small Ruminant Research)
Source: Small Ruminant Research - January 4, 2020 Category: Zoology Source Type: research
