EFFECT OF RAPESEED OIL ON PERFORMANCE AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES

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EFTEKHARI M.; REZAYAZADI K.; NIKKHAH A.; NEJATI JAVAREMI A.

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Journal: Iranian Journal of Animal Science Year:2009 | Volume:40 | Issue:2 Page(s): 1-6

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Title

EFFECT OF RAPESEED OIL ON PERFORMANCE AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES

Author(s)

EFTEKHARI M. | REZAYAZADI K. | NIKKHAH A. | NEJATI JAVAREMI A. | Issue Writer Certificate

Keywords

RAPESEED OILQ3

PERFORMANCE OF MALE CALFQ2

CARCASS CHARACTERISTICSQ2

Abstract

Twenty-four Holstein male calves (BW=217±57kg) were employed to evaluate the effects of RAPESEED OIL supplementation on growth, carcass as well as on meat quality and fatty acid content of longissimus thoracis muscle in a completely randomized design. The calves were divided into three groups and allocated to three diets of: a corn/barley-based diet (C); a diet containing 2% (DM basis) RAPESEED OIL (LC); and one containing 4% (DM basis) RAPESEED OIL (HC). Feed offered was recorded daily, the calves were weighed monthly and slaughtered after 4 months of trial. The obtained data indicated that dry matter intake was greater for steers fed C diet than for those fed LC and HC (P<0.05), but feed efficiency was lower for steers fed C diet rather than LC and HC (P<0.05). There were no differences (P>0.05) observed in average daily gain, hot carcass weight, and in longissimus muscle area. No differences were observed (P>0.05) in carcass readings except for back fat in which calves fed the HC diet had more back fat as compared to those fed the C diet. There were significant differences observed in meat quality of longissimus thoracis muscle, i.e. the ether extract was significantly increased (P<0.05) while crude protein and moisture significantly reduced due to being fed LC and HC. The use of RAPESEED OIL had no effect on muscle ash content (P>0.05). Fatty acid composition was affected by treatments, Feeding LC and HC diets increased (P<0.05) the percentages of C18:0 and C18:1 while decreasing (P<0.05) the percentages of C14:0 and C16:1. There were no differences (P>0.05) observed in the percentages of C14:0, C17:0, C17:1, C18:2, and C18:3 of the treatments. Concluding from the economic aspects of the study, ause of 4 percent (DM basis) of RAPESEED OIL in the diet of growing male calves is recommendable.

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APA: Copy

EFTEKHARI, M., REZAYAZADI, K., NIKKHAH, A., & NEJATI JAVAREMI, A.. (2009). EFFECT OF RAPESEED OIL ON PERFORMANCE AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 40(2), 1-6. SID. https://sid.ir/paper/193624/en

Vancouver: Copy

EFTEKHARI M., REZAYAZADI K., NIKKHAH A., NEJATI JAVAREMI A.. EFFECT OF RAPESEED OIL ON PERFORMANCE AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES. IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2009;40(2):1-6. Available from: https://sid.ir/paper/193624/en

IEEE: Copy

M. EFTEKHARI, K. REZAYAZADI, A. NIKKHAH, and A. NEJATI JAVAREMI, “EFFECT OF RAPESEED OIL ON PERFORMANCE AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES,” IRANIAN JOURNAL OF ANIMAL SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 40, no. 2, pp. 1–6, 2009, [Online]. Available: https://sid.ir/paper/193624/en

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