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

Abstract

The study was designed as a 2 x 5 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.

Effect of animal by-products on the growth performance of broiler chickens

“…The inclusion of 5% blood meal showed lowest final body weight. This result was in disagreement with previous studies where broiler diets supplemented with MBM (2, 3.5 and 5%), feather meal (33, 67 and 100%) and blood meal (50 and 100%) instead of fishmeal were not significant effect on final body weight (Bozkurt et al, 2004;Hasni et al, 2014;Seifdavati et al, 2008). Moreover, Frempong et al (2019) found that replacing fish meal with poultry by-products meal resulted in higher body weights.…”

“…Blood meal (BM) is a by-product of the slaughtering industry and is used as a protein source in the diets of non-ruminants and ruminants (Seifdavati et al, 2008). Blood meal is a dark chocolate-coloured powder with characteristics smell.…”

Dietary Supplementation of Purified Amino Acid Derived from Animal Blood on Immune Response and Growth Performance of Broiler Chicken

“…At the end of the experimental period, four birds from each treatment were randomly selected, fasted overnight, and sacrificed for carcass analysis. All carcass traits and relative organ weights were expressed as a percentage of the live weights (Seifdavati et al, 2008).…”

“…Beside of low cost production, the health status of animals with high growth performance is also important in the choice of feed supplementation. Feed supplementation with high-quality protein has been used chiefly to improve the growth performance and immune system in animals (Fisher, 1998;Seifdavati et al, 2008;Sklan & Noy, 2004).…”

“…During the last few years, mostly blood meal is being used as feed supplementation in broiler chicken (Seifdavati et al, 2008). A long time ago, highly purified amino acid supplementation also significantly increased the growth performance and immune reactivity of rats (Bounous & Kongshavn, 1977).…”