Comparative evaluation of different sources of animal protein in broiler bird diets


Comparative evaluation of different sources of animal protein in broiler bird diets


1Nsa, E. E. and 2Ukoha

1Department of Animal Science, University of Calabar, Calabar.
2 Department of nutrition, Micheal Okpara University, Umuhia.


American Journal of Agricultural Research

The effect of different animal protein sources in broiler production was investigated. 300 seven-day old broilers of equal average initial weight were randomly allotted into five treatment groups with 3 replications of 20 birds each and at the end of 28 days, birds were weighed again and re-randomized to the five treatment groups with 3 replicates of 16 birds each. The diets consisted of four animal proteins. Treatment 1(Control) had 4% fish meal, while diet 2, 3, 4 and 5 had 1% of each of the animal protein source, 4% crayfish waste meal, 4% blood meal and 4% meat meal respectively. The study was conducted for 56 days of 28days starter phase and 28days finisher phase. The results showed blood meal to have the highest (P<0.05) crude protein level (77.68%) followed by fish meal (54.53%), crayfish waste (48.08%) and meat meal (41.67%) in that order. Cray fish waste meal had the highest (P<0.05) crude fibre (6.07%) while blood meal had the least (2.98%). Fish meal had the highest ether extract (5.99%) followed by crayfish waste meal (4.03%), meat meal (3.67%) and blood meal (3.93%) in that order. There was no significant (P<0.05) differences in feed intake during both starter and finisher phases across the treatment groups. Blood meal significantly (P>0.05) depressed final live weight, weight gain, feed conversion ratio and protein efficiency ratio while other ingredients showed (P>0.05) similarities in the above parameters apart from in protein efficiency ratio which meat meal only showed significant (P>0.05) depression. The least cost per kg feed and least cost per kg weight gain (N) were observed with birds on crayfish diets. There was better (P<0.05) digestibility of crude protein by birds on treatment diets 1 and 2 followed by 3 an4 while birds on treatment diet5 had the least value (58.10%) Conclusively the use of crayfish waste meal in broiler starter diets and combined proteins in broiler fisher diets should be encouraged as its give best biologic and economic of broiler performance.


Keywords: Comparative evaluation, different sources, animal protein, broiler bird diets

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How to cite this article:
Nsa, E. E. and Ukoha. Comparative evaluation of different sources of animal protein in broiler bird diets. American Journal of Agricultural Research, 2019,4:51. DOI: 10.28933/ajar-2018-12-0518


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