NDLI: Efeitos da fitase sobre digestibilidades de dietas, deposição de minerais nos ossos, desempenho e produção de dejetos por suínos

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Efeitos da fitase sobre digestibilidades de dietas, deposição de minerais nos ossos, desempenho e produção de dejetos por suínos

Content Provider	Semantic Scholar
Author	Faria, Henrique Gonsales De Thomaz, Maria Cristina Ruiz, Urbano Dos Santos Robles-Huaynate, Rizal Alcides Watanabe, Pedro Henrique Melo, G. M. P. Silva, Susana Zaneti Da
Copyright Year	2015
Abstract	Two trials were conducted to evaluate phytase addition to diets with corn, rice and soybean meals for swine. In the first trial, the digestibilities of gross energy and crude protein and the availabilities of calcium (Ca) and phosphorous (P) of diets with or without phytase were evaluated in growing barrows (BW 20.42 ± 2.45 kg), using the total feces and feed collection methods. In the second trial, the parameters evaluated were pig performance, mineral contents in the 3rd and 4th metacarpals, feces production and composition of growing and finishing gilts fed one of the following diets: Positive control (PC), formulated to achieve nutrient and energy requirements of growing and finishing gilts; Negative control (NC), diet PC meeting 84% and 65% of Ca and P levels, respectively; Negative control + phytase (PHY), diet NC + 0.01% phytase (500 FTU/kg). Phytase addition improved P and Ca availabilities in 14.34% and 4.08%, respectively, compared with the diet with no phytase, in trial one. In trial two, the deposition of zinc in the metacarpals was improved by the enzyme and Ca, P and copper fecal excretions of the animals from the PC diet were greater than that observed for the PHY animals. Phytase addition improved the use of phytic phosphorous and calcium by the pigs and is recommended as a way to reduce the potential environmental impact of swine production.
Starting Page	4519
Ending Page	4530
Page Count	12
File Format	PDF HTM / HTML
DOI	10.5433/1679-0359.2015v36n6Sup2p4519
Volume Number	36
Alternate Webpage(s)	http://www.uel.br/revistas/uel/index.php/semagrarias/article/download/20239/17588
Alternate Webpage(s)	https://doi.org/10.5433/1679-0359.2015v36n6Sup2p4519
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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