Effect of phytase application to rape cake diet on nutrient deposition and bone quality in broiler chickens

• Autorzy: Banaszkiewicz T.
• Języki publikacji: EN

Abstrakty

EN

The aim of the study was to evaluate the effect of high rape cake content and microbial phytase added to low-phosphorus diet on deposition of nutrients and energy in body of broiler chickens and quality of their bones. At the beginning, seven 1-day-old Ross 308 chickens were weighed, slaughtered, dried, and their bodies were analysed for gross energy and nutrient content. Next, 90 one-day-old chickens were randomly divided into three groups. The group I was fed control diet (RC), which contained 15% (starter) and 20% (grower) of rape cake of Lirajet cultivar with P (7.5 g∙kg⁻¹) and Ca (10 g∙kg⁻¹). The group II was fed diet denoted as RC LP, which contained less P and Ca (5.8 g∙kg⁻¹ and 6.8 g∙kg⁻¹, respectively) than the control diet. The diet for group III, denoted RC LP+ Phy, contained 5.8 g∙kg⁻¹ of P and 6.8 g∙kg⁻¹ of Ca, and was supplemented with enzyme preparation containing 0.35 g∙kg⁻¹ of phytase. On the 21st d of life, the chickens were weighed and six birds from each group were slaughtered, dried, and analysed. The rest of the chickens were fed grower mixtures to 49 d of age and then six chickens were slaughtered and the quality of their bones was evaluated. The reduction of P and Ca contents in diets and phytase application did not influence body weight and feed consumption, but significantly improved the deposition of total phosphorus in chicken body at 1-21 d of age. The highest content of total phosphorus was stated in the femur of the chickens fed diet with normal P and Ca contents. The application of phytase to low-phosphorus diet did not influence the quality of bones.

• Wydawca: -
• Czasopismo: Bulletin of the Veterinary Institute in Puławy
• Rocznik: 2012
• Tom: 56
• Numer: 4
• Opis fizyczny: p.663-668,ref.

Twórcy

autor

Banaszkiewicz T.

• Nature Faculty, Siedlce University, 08-110 Siedlce, Poland

Bibliografia

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