منابع مشابه
Breeding objectives for Targhee sheep.
Breeding objectives were developed for Targhee sheep under rangeland production conditions. Traits considered were those for which EPD were available from the US National Sheep Improvement Program and included direct and maternal effects on 120-d weaning weight (WW and MM, respectively); yearling weight (YW); yearling fleece weight, fiber diameter, and staple length; and percent lamb crop (PLC)...
متن کاملBreeding sheep for scrapie resistance
Article available on line / Article disponible en ligne à l’adresse : -------------------------------------------------------------------------------------------------------------------------------------------------------------------------http://om.ciheam.org/article.php?IDPDF=3600060 ---------------------------------------------------------------------------------------------------------------...
متن کاملBreeding & Genetics: Swine, sheep, goat and dog breeding
Economic weights for sow productivity traits in pure-line pig populations were derived from a single profit equation in order to provide flexibility to alternative market requirements or production systems. The profit function method was modified to account for differences in piglet perinatal survival environment imposed by litter size at birth. Both the 100kg finished pig and the feeder pig ma...
متن کاملApplication of myostatin in sheep breeding programs: A review
Myostatin or growth and differentiation factor 8 (GDF8), has been known as the factor causing double muscling phenotypes in which a series of mutations make the myostatin protein inactive, hence disabling it to regulate the deposition of muscle fibre. This phenotype happens with high frequency in a breed of sheep known as the Texel. Quantitative trait loci (QTL) studies show that a portion of t...
متن کاملBreeding Strategies in the Australian Sheep Industry with Particular Reference to Group Breeding
Instead of attempting a full scale review, this paper concentrates on the area of group breeding, firstly reviewing the essential differences between group breeding schemes and the traditional stud ram breeding system, then briefly reviewing the recentfine tuning of the open nucleus ram breem programme of the Australian Merino Society, and final1 +e identifying research and development prioriti...
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ژورنال
عنوان ژورنال: Journal of Heredity
سال: 1912
ISSN: 0022-1503,1465-7333
DOI: 10.1093/jhered/os-7.1.256