EFFECT OF L-CARNITINE FED DURING GESTATION AND LACTATION ON REPRODUCTIVE PERFORMANCE OF TLRI Black Pig No.1 SOWS AND LITTER PERFORMANCE
نویسندگان
چکیده
The purpose of this study was to evaluate the effects of L-carnitine fed during gestation and lactation on reproductive performance of sows and litter performance. A total of 57 multiparous TLRI Black Pig No.1 (TBP) sows were used in this experiment. Pregnant sows were provided daily 150 ppm L-carnitine from day 91 of pregnancy to farrowing and 250 ppm/d L-carnitine provided postfarrowing through weaning for each sow. The results showed that the backfat thickness of sows in L-carnitine fed group was significantly (P<0.05) reduced. There was no difference on lactation weight loss and feed intake. Sows fed L-carnitine increased (P<0.07) total pig born, live piglets and total litter weight. There was no difference on litter size at weaning, the nursing rate during lactation and weight gain during lactation for piglets between control or L-carnitine fed group. In conclusion, sows fed L-carnitine during gestation and lactation period did not benefit the reproductive efficiency and litter performance.
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