The effect of feeding with different energy and protein content on the carcass and body fat composition of Joper Chicken in tropical lowland regions

I. M. Nuriyasa; G. A. M. K. Dewi; I. G. L. O. Cakra; A. A. P. P. Wibawa

doi:10.21744/ijle.v8n1.2416

Authors

I. M. Nuriyasa
madenuriyasa@unud.ac.id
Udayana University, Denpasar, Indonesia
G. A. M. K. Dewi Udayana University, Denpasar, Indonesia
I. G. L. O. Cakra Udayana University, Denpasar, Indonesia
A. A. P. P. Wibawa Udayana University, Denpasar, Indonesia

Keywords:

body fat composition, carcass, feed energy, feed protein, fermented, Joper chicken

Abstract

The research aims to determine the carcass and body fat composition of Joper chickens fed chicken feed with different energy and protein content in tropical lowland areas. The experiment used a Completely Randomized Design (CRD) with four treatments and six replications, each experimental unit consisting of 5 Joper chickens. The treatments in this experiment were: Joper chickens which were fed with a metabolizable energy (ME) content of 2700 kcal/kg and crude protein (CP) 14% (A), ME 2800 kcal/kg and CP 15% (B), ME 2900 kcal /kg and CP16% (C), ME 3000 kcal/kg and CP 17% (D). The results of the research showed that the slaughter weight and carcass weight of Joper chickens treated with feed C were the highest, not significantly different (P>0.05) from those treated with feed D, but those treated with feed B and A were significantly (P<0.05) lower than feed C. Commercial carcass cuts and carcass physical composition were not significantly different (P>0.05) between treatments A, B, C, and D. Fad fat and gizzard fat, mesenteric fat, and abdominal fat were lowest in feed treatment A. Feed treatments B, C, and D were significantly higher (P<0.05) than feed treatment A. It can be concluded that Joper chickens were fed with an energy content of 2900 kcal/kg crude protein 16% (C), ME 3000 kcal/kg and crude protein 17% (D) higher than fed with an energy content of 2700 kcal/kg and crude protein (CP) 14% (A), energy 2800 kcal/kg and crude protein 15% (B). Feed treatment A produced the lowest body fat composition, which was significantly different (P<0.05) compared to treatments B, C, and D.

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