Relationship of Udder Morphometric Traits to Mothering Ability of Landrace X Large White Primiparous Sows
نویسندگان
چکیده
منابع مشابه
Influence of gestation energy level on the production of Large White x Landrace sows.
Sixty-four Large White x Landrace primiparous sows were utilized to evaluate the influence of feeding 6 vs 9 Mcal ME/d during gestation on reproductive performance. The sows remained on their respective gestation diets for four parities if they successfully farrowed, rebred and conceived. Sows fed 9 Mcal ME/d gained more weight (P less than .05) through the gestation period during parities 1 an...
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Sow longevity influences farm economy and can be considered an important indicator of animal welfare. Body features such as leg conformation can play a key role in sow longevity, although little is known about its effect on culling decisions. Within this context, longevity data from 587 Duroc, 239 Landrace, and 217 Large White sows were analyzed with special emphasis on the effect of leg confor...
متن کاملRestriction polymorphism FABGL/BbvI in herd of sows derived from crossing Polish Large White x Polish Landrace breeds
The FABGL gene encodes a nicotinamide adenine dinucleotide (NAD)-dependent 17β-hydroxysteroid dehydrogenase (17b-HSD) which is responsible mainly for immune response. It can also regulate the concentration of biologically active estrogens and androgens. It is appear as oxidative enzyme that inactivates estradiol, testosterone, and dihydrotestosterone as well as reductive enzyme by synthesis of ...
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Backfat thickness, daily gain, and five exterior traits were measured in 36 814 Large White and Landrace gilts from nucleus and multiplier herds. Functional stayability, defined as survived (1) or not (0), from first to second (STAY12) and from first to third litter (STAY123) was available for 13 760 of these animals in a commercial multiplier environment. Heritabilities and genetic correlation...
متن کاملGenetic determination of mothering ability and piglet growth in indigenous Mukota sows of Zimbabwe
The objective of this study was to determine genetic parameters of individual and sow records on litter size and weights at 21 and 35 days in Mukota pigs. Data gathered from 1961 pigs at the University of Zimbabwe between January 1998 and August 2003, were analysed. Individual pig traits analysed were the weight at 21 days of age (THRWT), weight at weaning (WWT) and average daily gain from birt...
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ژورنال
عنوان ژورنال: Tropical Animal Science Journal
سال: 2020
ISSN: 2615-787X,2615-790X
DOI: 10.5398/tasj.2020.43.1.11