Web17 jun. 2013 · Primiparous sows experienced delayed returns to estrus after weaning and reduced conception rates in the summer months in North Carolina. 3 One method used to avoid the reduction in litter size during the second parity was to extend the weaning-to-service interval. 2 In addition, administration of exogenous gonadotropins at the time of … WebLitter size at birth and weaning were 9.12 ± 0.55 and 8.52 ± 0.81. These pigs have good mothering abilities with a weaning percentage of 89.32 ± 2.52%, good carcass quality, and consumer preference. The lifetime productivity for an average of six farrowings/sow showed a total litter size at birth of 51.83 ± 1.61 and total litter size at ...
Effect of birth litter size, birth parity number, growth rate, backfat ...
WebFor litter size at weaning, the highest number obtained was seven, the lowest was one and the average was four. The predicted estimates showed that litter size at birth for … Web1 INTRODUCTION. Modern sows are characterized by their high prolificacy as illustrated by the increase in the number of total born piglets in Danish sows from 12.9 in 2000 to 19.6 piglets per litter in 2024 (Danish Pig Research Centre, 2001-2024).Modern sows commonly wean 33–35 piglets per sow per year and herds with the highest productivity now wean … fish shack menu columbus ms
JAST (Journal of Animal Science and Technology)
WebLitter size at weaning increased as parity advanced up to the sixth one. The differences in this character due to parity were significant (P ≤ 0.01). Ouyed and Brun (2008) reported that rabbits from second parity were heavier at weaning (0.69 kg) and had the highest commercial carcass weight. Web2. Litter size born alive equal to litter size at weaning Yes. The litter size born alive can be equal to the litter size at weaning if no piglet born alive died at weaning. 3. Litter size at birth equal to litter size at weaning Yes. This is possible if all the piglets in the litter at birth are alive after weaning. 4. WebLitter size at the subsequent farrowing can also be negatively affected if sows are in poor condition at breeding. The amino acid requirements of first-litter gilts are higher than those for sows. ... Pigs weaned at an early age (3–4 wk) perform best if fed a complex starter diet for 1–2 wk after weaning. Typically, ... candlewood suites windsor locks