Studies in sow reproduction 1. The effect of nutrition between weaning and remating on the reproductive performance of primiparous sows
- 1 December 1972
- journal article
- research article
- Published by Cambridge University Press (CUP) in Animal Science
- Vol. 15 (3), 259-264
- https://doi.org/10.1017/s000335610001151x
Abstract
SUMMARY Following weaning of their first litter at 42 days post partum, 36 Landrace × (Landrace × Large White) sows were fasted for 24 hr then allocated to one of three feed levels, 1·8, 2·7 and 3·6 kg food/day, until the day after mating. During pregnancy all the sows received 1·8 kg food/day. The incidence of infertility and anoestrus was greatest for sows fed 1·8 kg/day and least for sows fed 3·6 kg·day. Sows fed 1·8 kg/day took significantly (P < 0·01) longer (21·6 + 3·0 days) to return to oestrus than sows fed 3·6 kg/day (9·2 ± 2·2 days). The mean litter size for sows fed 1·8, 2·7 and 3·6 kg food/day was 9·4 ± 0·9, 10·1 ± 0·8 and 11·5 ± 0·6 piglets respectively, but these differences were not significant.Keywords
This publication has 1 reference indexed in Scilit:
- Intensive beef production and the veterinarianPublished by Wiley ,1969