The effect of microbial phytase in a pearl millet-soybean meal diet on apparent digestibility and retention of nutrients, serum mineral concentration, and bone mineral density of nursery pigs

Journal of Animal Science
A C MurryH E Amos

Abstract

Eighteen gilts (initial BW of 10.9 kg; age 4 wk) were used in a 35-d experiment to study the effects of adding microbial phytase to a pearl millet-soybean meal-based diet on growth, apparent digestibility and retention of nutrients, and bone mineral status. The dietary treatments were arranged in a 2 x 3 factorial with two levels of P (.58%, low-P or .95%, adequate-P) and three levels of microbial phytase (0, 700, or 1,000 units/kg of diet). Phosphorus, Ca, and N balance were determined from d 32 to 35. Blood samples were collected on d 0 and 35 for serum mineral analysis. Global bone mineral content (GBMC) and global bone mineral density (GBMD) were determined on d 0 and 35 using dual-energy x-ray absorptiometry (DXA). A microbial phytase level x P level interaction was observed for final BW, ADG, gain:feed (P < .001), and serum P concentration (P < .003). Phytase supplementation of the low-P diets increased final BW, ADG, gain: feed, and serum inorganic P concentration but did not improve growth or serum inorganic P concentration in pigs fed the adequate-P diets. The addition of microbial phytase to the low-P and adequate-P diets reduced fecal P (P < .01), fecal N (P < .05), increased P absorption and retention (P < .01), and...Continue Reading

Citations

Apr 21, 2009·Biotechnology and Bioengineering·Dawei FuBin Yao
Oct 9, 2004·Journal of Animal Science·K F KnowltonD A Emmerson
Feb 19, 2010·Animal Science Journal = Nihon Chikusan Gakkaihō·Joshua A Jendza, Olayiwola Adeola
Jan 21, 2006·Journal of Animal Physiology and Animal Nutrition·P S RevyY Nys
Nov 20, 1998·Folia Microbiologica·J Dvoráková

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aphasia

Aphasia affects the ability to process language, including formulation and comprehension of language and speech, as well as the ability to read or write. Here is the latest research on aphasia.