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Kefyalew Berihun
Temesgen Alemu
Aberra Melesse*
Sandip Banerjee
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Kefyalew Berihun
Temesgen Alemu
Aberra Melesse*
Sandip Banerjee
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Journal of Plant and Animal Sciences

Assessing the partial substitution of roasted soybean seed with sweet potato (Ipomoea batatas) leaf meal in feed intake and growth performances of broiler chickens

Aberra Melesse1*, Temesgen Alemu2, Sandip Banerjee1, Kefyalew Berihun1

1School of Animal and Range Sciences, Hawassa University, Ethiopia.

2Kembata-Tembaro zone, Deyogena Woreda Agricultural Office, Ethiopia.

Accepted 15 August, 2015

Citation: Melesse A, Alemu T, Banerjee S, Berihun K (2015). Assessing the partial substitution of roasted soybean seed with sweet potato (Ipomoea batatas) leaf meal in feed intake and growth performances of broiler chickens. Journal of Plant and Animal Sciences, 1(2): 011-018.

Copyright: © 2015. Melesse et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Abstract

The aim of the present study was to evaluate the effect of partial substitution of roasted soybean seed (RSS) with sweet potato leaf meal (SPLM) on growth performances of broiler chickens. Two hundred unsexed Cobb-500 broiler chicks were randomly assigned to five dietary treatments consisting of a control diet (T1) and those containing SPLM at the levels of 30 g/kg (T2), 60 g/kg (T3), 90 g/kg (T4) and 120 g/kg (T5) replacing the RSS of the control diet. Each treatment diet was replicated four times with ten chicks each. The average feed intake of birds was (P<0.05) higher in chickens reared in T1 than those of other treatments. The average individual final body weight was higher (P<0.05) in chickens fed with T1 (1536g) than those of T2 (1412g), T4 (1426g) and T5 (1400g) diets. The average individual daily weight gain was higher (P<0.05) in chickens fed with T1 (31.7g), than those of T2 (28.7g), T4 (28.9g) and T5 (28.5g). The daily gain did not vary between T1 and T3 (30.3g). Chickens fed with T3 and T4 diets had (P<0.05) higher CP retention than those of T1 diet. In conclusion, chickens fed with T1 and T3 diets had better body weight and gain compared to other treatment diets. The feed intake decreased with increasing levels of SPLM suggesting the substitution of roasted soybean with higher levels may not be beneficial for broiler chickens.

Key words: Cobb-500 broiler chicken, growth performance, nutrient intake, partial substitution, roasted soybean seed, sweet potato leaf