
	Pakistan Journal of Biological Sciences
	Year: 2008 \| Volume: 11 \| Issue: 12 \| Page No.: 1625-1629 DOI: 10.3923/pjbs.2008.1625.1629

Effects of a Locally Produced Blood Meal on Performance, Carcass Traits and Nitrogen Retention of Broiler Chickens

J. Seifdavati, B. Navidshad, R. Seyedsharifi and A. Sobhani

Abstract: The study was designed as a 2x5 factorial arrangement with main effects of feeding blood meal as a replacement of 0, 25, 50, 75 or 100% of dietary fish meal and the duration of this substitution at 1-42 or 21-42 days of age. One thousand 1 day old male Cobb 500 broiler chicks assigned randomly to each of 40 floor pens (25 birds/pen) and were fed five isonitrogenous and isocaloric feeds formulated to contain 20.38 and 17% crude protein and 2900 and 3000 kcal kg^-1 metabolizable for starter and grower periods, respectively. Duration of dietary manipulation didn`t affect the measured parameters. More than 25% blood meal/fish meal substitution ratios significantly increased chickens daily weight gain and decreased the cost of producing a unit of meat. Other traits didn`t affect by dietary fish meal/blood meal replacement ratio. Spleen and proventriculus percents and small intestine length affected by level of replacement but didn`t follow a distinct pattern. These results indicate that this locally produced blood meal is a suitable substitute for dietary fish meal and a full replacement didn`t cause any adverse effect on performance, carcass important traits and dietary nitrogen retention of broiler chickens.

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How to cite this article:

J. Seifdavati, B. Navidshad, R. Seyedsharifi and A. Sobhani, 2008. Effects of a Locally Produced Blood Meal on Performance, Carcass Traits and Nitrogen Retention of Broiler Chickens. Pakistan Journal of Biological Sciences, 11: 1625-1629.

DOI: 10.3923/pjbs.2008.1625.1629

URL: https://scialert.net/abstract/?doi=pjbs.2008.1625.1629

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23 April, 2009
TIAMIYU SUNDAY AND GRACE SHOYEBI:
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