Effect of bypass lysine, methionine and fat on growth and nutritional efficiency in growing Jaffrabadi heifers

Autor: A.P. Gajera,, K.S. Dutta,, D.K. Parsana,, H.H. Savsani,, M.D. Odedra,, P.U. Gajbhiye,, K.S. Murthy, J.A. Chavda
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Veterinary World, Vol 6, Iss 10, Pp 766-769 (2013)
Druh dokumentu: article
ISSN: 0972-8988
2231-0916
DOI: 10.14202/vetworld.2013.766-769
Popis: Aim: Our objective was to evaluate the effect of bypass nutrients i.e. bypass lysine, methionine and fat on growth and nutritional efficiency in growing Jaffrabadi buffalo heifers aged 21 to 27 months.Materials and Methods: Twenty buffalo heifers were divided into four groups of equal number: control group (T1), bypass fat supplementation (T2), bypass lysine and methionine supplementation (T3) and bypass lysine, methionine and fat supplementation (T4). The feeds were analyzed for proximate constituents. Body measurements (body length, body height, heart girth, body girth, pelvic length and pelvic width) as well as body weights (kg) of individual animals were recorded at the beginning and thereafter at every fifteen day interval throughout the experimental period. Feed conversion ratio was determined in terms of dry matter required per kg gain in body weight under different treatments.Results: The total weight gain and average daily body weight gain during the experiment was highest in T4 followed by T2, which differed significantly (P0.05).Conclusion: Incorporation of bypass nutrients (lysine, methionine and fat) in the ration of growing Jaffrabadi heifers improved live weight gain, dry matter intake (kg/day), dry matter intake per kg metabolic weight and feed conversion ratio (DMI/kg body weight gain).
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