Major genes affecting ovulation rate in sheep
نویسندگان
چکیده
منابع مشابه
An Overview of Major Genes Affecting Prolificacy in Sheep and Related Mechanisms
The objective of this review is to explore the current developments on major genes working on prolific sheep breeds and the mechanism behind it, while identifying the future working points. Productivity is the ultimate goal of farm animal production and prolificacy is a key feature in determining productivity in farm animals. Ovulation rate in mammals is an intricate process involving genetics ...
متن کاملA Major Gene for Bovine Ovulation Rate
Half-sib daughters sired by a bull believed to be a carrier of a major gene for high ovulation rate were evaluated for ovulation rate and genotyped in an effort to both test the hypothesis of segregation of a major gene and to map the gene's location. A total of 131 daughters were produced over four consecutive years at a University of Wisconsin-Madison research farm. All were evaluated for ovu...
متن کاملTransrectal ultrasonography in diagnosing the ovulation rate in sheep
On the day of ovulation and next on day 7 after ovulation the ovaries of 20 sheep were examined using the transrectal ultrasound method. To verify the results, similar examination was made with the laparoscopic method. Depending on the stage of the sexual cycle (day 1 vs day 7) the number of Graafian follicles (∅ ≥5 mm) was determined as well as the total number of corpora lutea found in both o...
متن کاملEvidence for quantitative trait loci affecting ovulation rate in pigs.
Fifty-five microsatellite markers were scored in an F2 population of pigs (n = 114 females) developed at the University of Nebraska. The population was produced by crossing a line previously selected for 10 generations using an index of ovulation rate and embryonal survival and a line selected at random. The lines were from a common base population and differed by 6.7 ovulations and 3.1 fetuses...
متن کاملan overview of major genes affecting prolificacy in sheep and related mechanisms
the objective of this review is to explore the current developments on major genes working on prolific sheep breeds and the mechanism behind it, while identifying the future working points. productivity is the ultimate goal of farm animal production and prolificacy is a key feature in determining productivity in farm animals. ovulation rate in mammals is an intricate process involving genetics ...
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ژورنال
عنوان ژورنال: Genetics Selection Evolution
سال: 2005
ISSN: 0999-193X,1297-9686
DOI: 10.1051/gse:2004026