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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Environmental impact provoked by P in diets supplemented with phytase enzyme and ideal protein for growing pigs: study of the P flow in the animal metabolism

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J.A. Moreira [1] ; D.M.S.S. Vitti [2] ; R.M. Patino [3] ; T.S. Silva [4] ; I.C. Bueno [5] ; B. Berenchtein [6]
Total Authors: 6
[1] Universidade Federal do Rio Grande do Norte
[2] USP. Centro de Energia Nuclear na Agricultura
[3] Universidade de Sucre - Colômbia
[4] USP. Centro de Energia Nuclear na Agricultura
[5] Faculdade de Zootecnia e Engenharia dos Alimentos
[6] USP. Centro de Energia Nuclear na Agricultura
Total Affiliations: 6
Document type: Journal article
Source: Arquivo Brasileiro de Medicina Veterinária e Zootecnia; v. 62, n. 5, p. 1206-1215, 2010-10-00.

The study was developed to evaluate a possible of reduction of the inorganic P concentration in diets formulated for pigs in agreement with the concept of ideal protein, using Lopes et al. model. Twenty male pigs were used in a randomized blocks design, with five treatments and four replicates. The animals were housed in metabolic cages for 17 days, being 10 days for adaptation and seven days for collection of feces and urine. Samples of blood were collected for five days. On the first day of the experimental phase, each animal was intravenously injected with 7.4 MBq 32P. At the end of the experiment, the animals were slaughtered and samples of muscle (loin), heart, liver, kidney, and bones were collected. The supplementation in growing pigs can be reduced in 50% by adding 750UF/kg of diet in rations based in corn and soybean meal, balanced in agreement with concept of ideal protein, decreasing the P fecal excretion. (AU)

FAPESP's process: 04/14532-5 - Environmental impact of phosphorus excretion in livestock: quantitative analysis of flow phosphorus using bio-mathematical models
Grantee:Dorinha Miriam Silber Schmidt Vitti
Support Opportunities: Research Projects - Thematic Grants