Estimates of (co)variance components and genetic parameters for body weights and first greasy fleece weight in Bharat Merino sheep

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Estimates of (co)variance components and genetic parameters for body weights and first greasy fleece weight in Bharat Merino sheep.

(Co)variance components and genetic parameters of weight at birth (BWT), weaning (3WT), 6, 9 and 12 months of age (6WT, 9WT and 12WT, respectively) and first greasy fleece weight (GFW) of Bharat Merino sheep, maintained at Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, India, were estimated by restricted maximum likelihood, fitting six animal models with various combinations ...

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Contribution of Genetic and Phenotypic Parameters Affecting Fleece Traits in 3/4th Bred Bharat Merino Sheep

The contribution of genetic and phenotypic parameters affecting fleece traits in 3/4th bred 2425 Bharat Merino Lambs sired by 154 rams over period of 1982-96 was evaluated. The year and season of shearing, sex of lamb, type of birth, age and weight of lamb contributed 8 to 42% of the phenotypic variability in the fleece traits. The least square means for the first and second six monthly greasy ...

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Estimates of genetic and environmental (co)variances for live weight and fleece traits in yearling South African Mutton Merino sheep

Yearling live weight and fleece trait data were obtained from between 2214 and 2270 yearling SA Mutton Merino progeny of the Elsenburg flock during a 20-year period from 1983 to 2002. Information of (co)variances for these traits in SA Mutton Merinos is exceedingly scarce in the literature. Estimates of (co)variance components and ratios were thus obtained from these data, using an Animal Model...

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Parameter estimates for greasy fleece weight of Rambouillet sheep at different ages.

Variance components for greasy fleece weight in Rambouillet sheep were estimated. Greasy fleece weight was modeled either as repeated measurements on the same trait or as different traits at different ages. The original data were separated according to the age of the ewe at shearing into three classes; 1 yr, 2 and 3 yr, and older than 3 yr. An animal model was used to obtain estimates of geneti...

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Inbreeding and Its Effects on Body Weight,Kleiber Ratio, Body Measurements, Greasy Fleece Weight and Reproductive Traits of Makooei Sheep Breed

A pedigree file consisting of 5860 individuals, 167 sires and 1582 dams collected at Makooei sheep breeding station (MSBS) during a period of 24 years (1990 to 2013) was used to calculate the inbreeding coefficients to reveal any probable effects of inbreeding (F) on the studied traits. The studied traits were classified to the five main groups including body weight, Kleiber ratio, body measure...

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ژورنال

عنوان ژورنال: Animal

سال: 2010

ISSN: 1751-7311

DOI: 10.1017/s1751731109991157