Results 31 to 40 of about 218,705 (184)
Melatonin and Lactation in Ruminants Dairy Animals: A Systematic Review and Meta-Analysis of Preclinical Studies. [PDF]
Health Sci RepABSTRACT Background and Aims Melatonin is present in breast milk with a diurnal pattern, potentially supporting early circadian rhythm development. This systematic review and meta‐analysis aimed to evaluate the effects of exogenous melatonin supplementation, compared with no treatment or placebo, on milk yield, milk composition, somatic cell count ...
Sattarpour R +4 more
europepmc +2 more sources
Effects of the FecL major gene in the Lacaune meat sheep population [PDF]
Genetics Selection Evolution, 2014 The major prolificacy gene FecL was first described in the Lacaune sheep meat breed Ovi-Test in 1998. A few studies estimated the effect of this gene on prolificacy but little data is available. In 2010, the Ovi-Test cooperative started genotyping FecL in all of their replacement ewe lambs.
Martin, Pauline +2 more
openaire +4 more sources
Causes of Lamb Mortality in the Lacaune Sheep Breed in Iran
Journal of Medical Bacteriology, 2023 Background: Neonatal mortality is a significant multifactorial problem that affects flock productivity. Different infectious and non-infectious factors have been attributed to lamb losses. The objective of the present study was to identify the major causes of neonatal mortality.
Hossein Esmaeili +2 more
openaire +1 more source
Agricultural Science and Technology, 2021 . The aim of the present study was to develop theoretical bio-economic models of Lacaune sheep farms and establish their economic efficiency. Based on three main criteria, 15 options were considered and analyzed.
S. Slavova
doaj +1 more source
Selection signature analysis reveals genes underlying sheep milking performance [PDF]
Archives Animal Breeding, 2019 Sheep milk is the most important feed resource for newborn lambs and an important food resource for humans. Sheep milk production and ingredients are influenced by genetic and environmental factors.
Z. Yuan, W. Li, F. Li, F. Li, X. Yue
doaj +1 more source
Effects of crossbreeding on milk production of sheep
Czech Journal of Animal Science, 2023 The aim of this study was to estimate the effects of crossbreeding on milk production and milk components in crossbred Tsigai, Lacaune, and Improved Wallachian sheep used to create a synthetic Slovak dairy sheep population.
Michaela Černá +3 more
doaj +1 more source
Genetic Correlation Between Female Fertility and Milk Yield in Lacaune Sheep [PDF]
Journal of Dairy Science, 2008 A total of 416,670 lactations for 189,101 ewes from 3,603 sires and distributed across 1,978 herd-year groups were used to estimate genetic and environmental parameters of standardized milk yield (SMY(T)), fertility in ewe lambs (PR(1)), and fertility in adult ewes (PR(A)).
David, Ingrid +5 more
openaire +5 more sources
JDS Communications, 2021 Runs of homozygosity (ROH) are contiguous homozygous segments of the genome where the haplotypes inherited from each parent are identical. The occurrence of ROH is not randomly distributed across the genome, and ROH islands across many animals may be the
S.T. Rodríguez-Ramilo +2 more
doaj +1 more source
Segregation of a major gene influencing�ovulation in progeny of�Lacaune�meat�sheep [PDF]
Genetics Selection Evolution, 2002 Inheritance of the ovulation rate (OR) in the Lacaune meat breed was studied through records from a small nucleus of 36 hyper-prolific ewes screened on farms on the basis of their natural litter size, and from progeny data of three selected Lacaune sires. These sires were chosen at the AI centre according to their breeding values estimated for the mean
Bodin, Loys +9 more
openaire +4 more sources
Effect of subdivision of the Lacaune dairy sheep breed on the accuracy of genomic prediction
Journal of Dairy Science, 2023 Genomic selection was deployed in Lacaune dairy breed in 2015. Lacaune population split in 1972 into 2 breeding companies with associated flocks, and there have been very few exchanges of animals between the subpopulations, leading to divergence of the 2 subpopulations. In spite of that, there is a joint genomic prediction.
Wicki, M., Raoul, J., Legarra, A.
openaire +5 more sources