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Pakistan Journal of Biological Sciences

Year: 2019 | Volume: 22 | Issue: 6 | Page No.: 265-272
DOI: 10.3923/pjbs.2019.265.272

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Authors


H.H.  Azzaz

H.H. Azzaz

LiveDNA: 20.981

A.A. Aboamer

Country: Egypt

Hoda Alzahar

Country: Egypt

M.M. Abdo

Country: Egypt

H.A.  Murad

H.A. Murad

LiveDNA: 20.630

Keywords


  • milk production
  • lactating goats
  • phytase
  • Xylanase
  • nutrients digestibility
Research Article

Effect of Xylanase and Phytase Supplementation on Goat’s Performance in Early Lactation

H.H. Azzaz H.H.  Azzaz's LiveDNA, A.A. Aboamer, Hoda Alzahar, M.M. Abdo and H.A. Murad H.A.  Murad's LiveDNA
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.
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How to cite this article

H.H. Azzaz, A.A. Aboamer, Hoda Alzahar, M.M. Abdo and H.A. Murad, 2019. Effect of Xylanase and Phytase Supplementation on Goat’s Performance in Early Lactation. Pakistan Journal of Biological Sciences, 22: 265-272.

DOI: 10.3923/pjbs.2019.265.272

URL: https://scialert.net/abstract/?doi=pjbs.2019.265.272

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