Phytase transgenic corn in nutrition of laying hens: residual phytase activity and phytate phosphorus content in the gastrointestinal tract

The residual activities of transgenic corn-derived and 2 commercial microbial phytases (PA and PB) along the gastrointestinal tract (GIT) of laying hens were compared to evaluate their relative resistance to hydrolysis in the GIT when added to P-deficient diets. The treatments consisted of a negativ...

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Veröffentlicht in:	Poultry science 2013-11, Vol.92 (11), p.2923-2929
Hauptverfasser:	Gao, C Q, Ji, C, Zhao, L H, Zhang, J Y, Ma, Q G
Format:	Artikel
Sprache:	eng
Schlagworte:	6-Phytase - administration & dosage Animal Feed - analysis Animal Husbandry Animal Nutritional Physiological Phenomena Animals Aspergillus niger - chemistry Chickens - growth & development Chickens - physiology Chromatography, High Pressure Liquid - veterinary Dietary Supplements - analysis Digestion Dose-Response Relationship, Drug Escherichia coli - chemistry Female Gastrointestinal Tract - chemistry Gastrointestinal Tract - metabolism Phosphorus, Dietary - metabolism Phytic Acid - analysis Phytic Acid - metabolism Plants, Genetically Modified - genetics Plants, Genetically Modified - metabolism Proteolysis - drug effects Random Allocation Zea mays - chemistry Zea mays - genetics
Online-Zugang:	Volltext
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