Herd-level factors associated with piglet weight at weaning, kilograms of piglets weaned per sow per year and sow feed conversion
نویسندگان
چکیده
منابع مشابه
A first analysis of piglet mortality identifying important factors
The number of pigs weaned per sow per year was defined as the overall goal for improving reproductive performance during a PRDC workshop in 1997 (PRDC, 1997). This criterion is influenced by two main components, number of litters per sow per year and the number of piglets weaned. Previous work at AGBU (Tholen et al., 1996) has shown that genetic improvement to increase the number of litters per...
متن کاملFACTORS INFLUENCING THE WEIGHT GAIN OF PIGLETS DURING THE NURSING PERIOD: PRELIMINARY RESULTS M. Johansen, L. Alban, H. D. Kjærsgaard and P. Bækbo
In intensive pig production the weight of the weaned piglet has significant influence on the pig's later performance. The objective of this study is to estimate the relative impact of genetics, feeding, housing, and health factors on the weight gain during the nursing period. The study was performed as a cohort study in 3 farrow-to-finish herds. A technician visited the herds weekly and collect...
متن کاملEffects of Varying Creep Feed Duration on Pre-weaning and Post-weaning Performance and Behavior of Piglet and Sow
32 sows (Landrace×Yorkshire) and their litters were used to evaluate the effects of varying creep feed duration on pre-weaning, post-weaning performance of piglets and sows. Sows were randomly assigned with 1, 2 or 3+ parities into 1 of 4 treatments. Creep feeding was initiated at day 5, 10 and 15 from birth for treatment 1 (TRT1), 2 (TRT2) and (TRT3), respectively, with a control group provide...
متن کاملCreep Feed: Effects of Feed Flavor Supplementation on Pre- and Post-weaning Performance and Behavior of Piglet and Sow
This study was conducted to evaluate the effects of flavor supplementation on preand post-weaning performance and behavior of piglets and sows. A total of 30 sows (Landrace×Yorkshire) and their litters were employed in this study. Sows were randomly assigned to 3 dietary treatments (10 replications per treatment). Dietary treatments included: i) CON, basal diet; ii) TRT1, CON+0.1% vanilla suppl...
متن کاملEffects of sarcoptic mange on lactating swine and growing pigs.
The impact of Sarcoptic mange on sows and on performance of their offspring from birth to slaughter was determined. Sows naturally infested with Sarcoptic mange were paired, mated to the same boar, and assigned randomly to treated or control farrowing groups. Treated sows received ivermectin s.c. at 300 micrograms/kg body weight; control sows received the vehicle s.c. Sow performance was evalua...
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ژورنال
عنوان ژورنال: Animal
سال: 2020
ISSN: 1751-7311
DOI: 10.1017/s175173111900346x