Xylanase Supplementation Improved Digestibility and Performance of Growing Pigs Fed Chinese Double-low Rapeseed Meal Inclusion Diets: In vitro and In vivo Studies
| Autor: | T. J. Tang, Z. F. Fang, L. Z. Jin, J. J. Dai, Z. L. Liu, J. Peng |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Asian-Australasian Journal of Animal Sciences. 20:1721-1728 |
| ISSN: | 1976-5517 1011-2367 |
| DOI: | 10.5713/ajas.2007.1721 |
| Popis: | An in vitro and a feeding trial were conducted to investigate the effect of xylanase supplementation on the feeding value of growing pig diets containing high proportions of Chinese double-low rapeseed meals (DLRM). Seven diets were formulated to meet NRC (1998) nutrient requirements. Diet 1 based on corn-soybean meal was used as positive control 1, and diet 2, a practical diet which incorporated a conventional level of Chinese DLRM (60 g/kg diet), as positive control 2. Diet 3 contained a higher level of DLRM (100 g/kg diet) as the negative control. Diet 3 plus xylanase at 0.10, 0.25, 0.50 and 0.70 g/kg diet created diets 4, 5, 6 and 7, respectively. The seven diets were incubated in triplicate with the in vitro two-stage enzyme incubation method to predict responses of diets to xylanase in terms of digestibility of dry matter (DM), crude protein (CP) and neutral detergent fibre (NDF). In vitro, the negative control had the lowest CP and NDF digestibility. Both DM and CP digestibility were increased (p 0.90, p |
| Databáze: | OpenAIRE |
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