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Response to selection of a breeding program for Suffolk sheep in the Czech Republic
lamb breeding values growth performance traits performance recording
2018/11/23
Lamb growth performance traits in relation to parental breeding values (BVs) for these traits were evaluated in a purebred Suffolk sheep population in the Czech Republic. The research lasted over 8 ye...
Allelic variation of melanocortin-1 receptor locus in Saudi indigenous sheep exhibiting different color coats
MC1R Ovis aries SNPs Saudi Sheep
2017/3/8
This study was designed to characterize the DNA polymorphisms of the melanocortin-1 receptor (MC1R) gene in indigenous Saudi Arabian sheep breeds exhibiting different color coats, along with individua...
Reproduction Efficiency and Health Traits in Dorper, White Dorper, and Tsigai Sheep Breeds under Temperate European Conditions
Sheep Genotype Fitness Health Performance Reproduction
2016/5/18
The objective of the current pilot study was to evaluate the reproductive performance and health indicators in Dorper, White Dorper, and Tsigai breed ewes managed semi-intensively under European tempe...
Estimation of genetic parameters for reproductive traits in Mehraban sheep
heritability genetic correlation
2015/7/7
Studied traits were litter size at birth (LSB), litter size at weaning (LSW), litter mean weight per lamb born
(LMWLB), litter mean weight per lamb weaned (LMWLW), total litter weight at birth (TLWB...
Assessment of genetic relationship between six populations of Welsh Mountain sheep using microsatellite markers
heep interbreed relationship
2015/7/7
Based on DNA analysis using
8 microsatellite markers, observed heterozygosity levels were similar to those expected in livestock populations
subjected to selective breeding (0.530–0.664), and...
Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep
selenium linseed oil fatty acid
2015/6/23
Each group comprised 5 lambs with an average initial body weight of 25 ± 2 kg.
For 35 days the sheep were fed the control or experimental diets enriched with 5% LO, SeVI, or LO and SeVI
combined. ...
Estimation of genetic parameters of reproductive traits in Zandi sheep using linear and threshold models
reproductive traits genetic parameters
2015/6/23
Genetic parameters were estimated for four basic and two composite traits. Year of lambing
and age of ewe were used as fixed effects. Due to repeated record of ewe animal direct genetic effect...
Genetic parameters of live body weight, body measurements, greasy fleece weight, and reproduction traits in Makuie sheep breed
direct and maternal effects heritability
2014/10/28
Genetic parameters of production and reproduction traits were estimated using 39,926 records from 5,860 individual progenies of 163 sires and 1,558 dams. The data were collected at Makuie Sheep Breedi...
Long-term Bias of Internal Markers in Sheep and Goat Digestion Trials
Fecal Excretion Intake Marker Concentration Ruminal Incubation
2016/5/11
Two digestion trials, one with sheep and another with goats, were conducted to evaluate the long-term bias (LTB) of the indigestible dry matter (iDM), indigestible neutral detergent fiber (iNDF) and i...
Association of Polymorphisms in Fecundity Genes of GDF9, BMP15 and BMP15-1B with Litter Size in Iranian Baluchi Sheep
BMP15 BMP15-1B GDF9 Litter Size Baluchi Sheep
2016/5/6
The incidence of mutation in three loci of GDF9, BMP15 and BMP15-1B and their effects on litter sizes was evaluated in Baluchi sheep. Wild-type alleles were detected for BMP15 and BMP15-1B loci and al...
Association between Melatonin Receptor 1A Gene and Expression of Reproductive Seasonality in Sheep
Sheep Reproductive Seasonality Melatonin Receptor 1A Gene PCR-RFLP
2016/4/21
To determine whether a link exists between reproductive seasonality and the structure of the melatonin receptor 1A (MTNR1A) gene, the latter was studied in nonseasonal estrous breeds (Small Tail Han a...
Studies on Inbreeding and Its Effects on Growth and Fleece Traits of Muzaffarnagari Sheep
Inbreeding Depression Effective Population Size Growth Traits Fleece Weight
2016/4/20
A pedigree file of 4,738 records of a purebred flock of Muzaffarnagari sheep, maintained at Central Institute for Research on Goats (CIRG), Makhdoom, for a period of 24 years (1978 to 2001) was used t...
Comparison of Carcass Composition of Iranian Fat-tailed Sheep
Iranian Sheep Lambs Fat-tailed Live Weight Carcass Composition
2016/4/20
Most breeds of sheep in Iran are adapted to their agro ecological niches where it is likely that they were also artificially selected by their owners. In general, most of sheep breeds are multipurpose...
Association of a Single Codon Deletion in Bone Morphogenetic Protein 15 Gene with Prolificacy in Small Tail Han Sheep
Sheep Prolificacy Bone Morphogenetic Protein 15 Gene PCR-SSCP
2016/4/18
Small Tail Han Sheep has significant characteristics of high prolificacy and non-seasonal ovulatory activity and is an excellent local sheep breed in P. R. China. Recently a novel member of the transf...
Breeding Prolific Garole with Malpura Sheep for Increased Reproductive Efficiency in Semi Arid Tropics of India
Reproduction Garole Crosses Sheep Performance Traits
2016/4/15
Garole, a prolific small sized sheep breed of West Bengal, was introduced in the Mutton project of the Institute in 1997 to explore the possibility of incorporating fecundity gene(s) into monotocus Ma...