Addition of increasing doses of ricinoleic acid from castor oil (Ricinus communis L.) in diets of Nellore steers in feedlots

• Autorzy: Gandra J.R. , Nunes Gil P. C. , Consolo N. R. B. , Gandra E. R. S. , Gobesso A. A. O.
• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to evaluate the performance and blood parameters of feedlot Nellore cattle fed increasing doses of ricinoleic acid (RA) in the diet. Ninety-six Nellore steers divided into 12 groups of 8 animals were used. The animals were randomly assigned to four treatments: 0, 1, 2, or 4 g of RA/animal/day, with three replicates per treatment. The experimental period consisted of 84 days divided into three 28-day periods preceded by three step-up diets. A quadratic effect was found for average daily gain and final body weight, as well as for leukocyte and lymphocyte counts, and for urea and blood urea nitrogen. A linear effect was observed for albumin, alkaline phosphatase, and gamma glutamyl transferase. The inclusion of 2 g of RA daily improved the performance of feedlot Nellore steers.

• Wydawca: -
• Czasopismo: Journal of Animal and Feed Sciences
• Rocznik: 2012
• Tom: 21
• Numer: 4
• Opis fizyczny: p.566-576,ref.

Twórcy

autor

Gandra J.R.

• Departament of Nutrition and Animal Production FMVZ/USP, 13635-000 Pirassununga SP, Brazil

autor

Nunes Gil P. C.

• Departament of Nutrition and Animal Production FMVZ/USP, 13635-000 Pirassununga SP, Brazil
• Ouro Fino Agribusiness Ltd., 14140-000 Cravinhos SP, Brazil

autor

Consolo N. R. B.

• Departament of Nutrition and Animal Production FMVZ/USP, 13635-000 Pirassununga SP, Brazil

autor

Gandra E. R. S.

• Ouro Fino Agribusiness Ltd., 14140-000 Cravinhos SP, Brazil

autor

Gobesso A. A. O.

• Departament of Nutrition and Animal Production FMVZ/USP, 13635-000 Pirassununga SP, Brazil

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