Effect of Xylanase and Phytase Supplementation on Goat's Performance in Early Lactation
| Autor: | H.A. Murad, Hoda Alzahar, H. H. Azzaz, M M Abdo, A.A. Aboamer |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Soybean meal Biology 01 natural sciences Rumen 0404 agricultural biotechnology Blood serum Animal science Animals Lactation Dry matter 6-Phytase Endo-1 4-beta Xylanases Goats Body Weight Fatty Acids food and beverages 04 agricultural and veterinary sciences Ruminants 040401 food science Animal Feed Milk Blood chemistry Dietary Supplements Fermentation Hay Xylanase Phytase Animal Nutritional Physiological Phenomena Female Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Pakistan journal of biological sciences : PJBS. 22(6) |
| ISSN: | 1812-5735 |
| Popis: | Background and objectives Supplementing diets of dairy animals with phytase and xylanase can enhance phosphorus availability and fiber degradation in the rumen and positively affect animal's health and productivity. In vitro and in vivo trials have been conducted to define the optimal addition level of xylanase and phytase to lactating Baldi goat's rations and investigate effects of these enzymes on animal's nutrients digestibility, blood chemistry, milk production and milk composition. Materials and methods In vitro batch culture technique was used to evaluate the effect of phytase and xylanase supplementation at different levels (0, 1, 2 and 3 g kg-1 DM) on rumen fermentation characteristics. Eighteen early lactating Baldi goats were randomly assigned into three groups and fed 4% dry matter according to their body weight. The first group was fed control ration (35% yellow corn, 20% corn stalks, 20% berseem hay, 12.5% soybean meal and 12.5% wheat bran), the second group fed control ration+Penizyme at 2 g kg-1 DM (R1), while the third group fed control ration+Phtase-Plus® at 1 g kg-1 DM (R2). Results Xylanase and phytase supplementation increased the in vitro DM and OM degradability and ruminal NH3-N and total volatile fatty acids (TVFA) concentrations, with no effect on total gas production (TGP) volume. All nutrients digestibility (except CP), blood serum glucose concentration, milk production and milk components yields were increased for enzymes supplemented goats than control. Conclusion Inclusion of xylanase and phytase in lactating goat's rations improved their productive performance with no deleterious effects on their health. |
| Databáze: | OpenAIRE |
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