Effects of Aspergillus niger-Derived Multi-Enzyme Complex on Performance, Milk Yield, Blood Metabolites, and Manure Output in Multiparous Lactating Sows

• Published in: Journal of Animal Science and Technology Vol. 52; no. 4
• Main Authors: Lee, S.H., Livestock Experiment Station, Gyeongsangnamdo Livestock Promotion Research Institute, Sancheong, Republic of Korea, Ha, Y.J., Livestock Experiment Station, Gyeongsangnamdo Livestock Promotion Research Institute, Sancheong, Republic of Korea, Kwack, S.C., Livestock Experiment Station, Gyeongsangnamdo Livestock Promotion Research Institute, Sancheong, Republic of Korea
• Format: Journal Article
• Language: Korean
• Published: 01.08.2010
• Subjects: ASPERGILLUS NIGER; Fecal phosphorus; Lactating sows; Litter weight gain; Milk fat yield; Multi-enzyme complex
• ISSN: 1598-9429

This study was conducted to investigate the effects of Aspergillus niger-derived multi-enzyme complex supplementation to feed- restricted lactating sows on performances, milk yield, blood profiles, and manure excretion as compared with ad libitum-fed sows without supplementation of enzyme. Fifty multiparous lactating Berkshire sows were allotted to 5 treatments of 10 sows per treatment during a 28-d lactation period and litter per sow was standardized to 9 suckling piglets. Treatments were ad libitum-fed sows without enzyme and feed-restricted sows supplemented with four increasing levels (0, 0.02, 0.04 and 0.08%) of multi-enzyme complex derived from Aspergillus niger. Blood samples from all sows were collected to determine serum metabolite concentrations before the morning feeding on d 27 of lactation. Litter body weight and a piglet weight at weaning, and litter weight gain significantly (P less than 0.05) increased with increasing levels of multi-enzyme complex, but there was no significant difference between ad libitum-fed sows without enzyme and feed-restricted sows supplemented with multi-enzyme complex. Body condition score and backfat depth at weaning significantly (P less than 0.05) increased as multi-enzyme complex level increased. Lactational backfat depth tended (P greater than 0.05) to less decrease with increasing levels of enzyme complex. Serum inorganic phosphorus and non-esterified fatty acid concentrations significantly (P less than 0.05) increased with increasing levels of enzyme complex. Daily milk yield was not significantly different across treatments, but milk fat yield (kg/d) significantly (P less than 0.05) increased as multi-enzyme complex level increased. Manure output was significantly (P less than 0.01) higher for ad libitum-fed sows than for feed-restricted sows, but there was no significant difference among feed-restricted sows supplemented with increasing levels of multi-enzyme complex. Fecal phosphorus amount significantly (P less than 0.05) decreased with increasing levels of multi-enzyme complex. Feed costs of sows per litter weight gain were reduced by 1.25% to 9.67% with increasing levels of multi-enzyme complex as compared with ad libitum-fed sows without enzyme. The results indicated that multi-enzyme supplementation to feed-restricted lactating sows not only increased litter performances, but also was comparable to ad libitum-fed sows, resulting in reduced feed costs. Moreover, the reduction of fecal phosphorus amount with increasing levels of enzyme complex would contribute to the reduction of environmental pollution.