Effects of level of feed provision during d 0 to d 30 postmating and d 91 to farrowing on reproductive performance of sows and growth of piglets

Liao ChungWen; Su TienMing; Liu CheinFuh; Tsai ChinTsen

Journal of Taiwan Livestock Research 37(4): 359-364

2004


Accession: 004135308

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Abstract
This experiment was conducted to investigate the effect of feed provision level during days 0 to 30 postmating and day 91 to farrowing on the reproductive performance of sows and growth of piglets. A total of 78 second parity sows were used in the experiment. Sows were allocated into 2 feed provision groups, 2.0 or 3.0 kg/day during days 0 to 30 postmating. From days 31 to 90 postmating, all the sows were provided daily with 2.0 kg of pregnant diet. From day 91 until farrowing, the previous feed provision groups were subdivided into 2 groups, 2.4 or 3.0 kg/day. Four feed provision combinations were formed. The liveweight gain and backfat thickness changes in sows were measured. The effect of feed provision levels during days 0 to 30 postmating and day 91 to farrowing on litter size at farrowing and piglet growth in lactation period was also determined. There was a significant (P<0.05) feed provision effect on the litter size at birth and live piglets. Sows provided with 3.0 kg/d during days 0 to 30 postmating and day 91 to farrowing had larger litter size at birth and live piglets. No differences in litter size at weaning or survival rate during subsequent lactation period were observed. The liveweight gain of piglets during lactation period was reduced for sows fed 3.0 kg/day during days 0 to 30 postmating and day 91 to farrowing when compared to the control group. It was concluded that sows fed 3 kg feed during days 0 to 30 postmating and day 91 to farrowing could not benefit the piglet growth during lactating period.