PERFORMANCE OF NURSERY PIGS FED DIETS WITH COATED OR POTENTIATED ZINC OXIDE

Jemimah Micah B. Raquipo, Francis Carlo C. Reyes, Babylyn A. Moog, Emily P. Angeles, Anthony Francis S. Regaspi, Analiza M. Cuizon

Abstract


 

 A 30-d experiment was carried out to compare the effects of two zinc oxide sources on performance of nursery pigs. Four hundred sixty-one mixed-sex weanling pigs (5.34 ± 0.16 kg) were randomly allotted to two dietary treatments. Pigs were fed basal diet added with either 500 g/ton coated zinc oxide (cZnO) or 300 g/ton potentiated zinc oxide (pZnO). Each treatment was replicated three times with 76-77 pigs per replicate. Weighing was done three times at 15-d interval. Average daily gain of pigs fed diets supplemented with pZnO tend to be higher than those fed diets supplemented with cZnO at d 1-15 (0.16 vs 0.11 kg; p=0.09), d 16-30 (0.53 vs .41 kg; p=0.05), and at d 1-30 (0.34 vs 0.26 kg; p=0.06). There were no differences on ADFI (p=0.43) for each feeding phase and for the overall period. Feed conversion ratio (FCR) at d 1-15 did not differ between treatments (p=0.12), but pigs fed diets with pZnO improved by 22.07% at d 16-30 (1.73 vs 2.22; p=0.07) and for the overall period by 25.40% (1.88 vs 2.52; p=0.07). Furthermore, mortality was lower in pigs fed diets with pZnO (6.57 vs 15.86 %; p=0.01) than those fed with cZnO. Results indicated the advantages of pZnO over cZnO on growth and survivability of pigs.


Keywords


potentiated Zinc Oxide, coated Zinc oxide

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