The Effect of Amino Acids Lysine and Methionine on the Carcass of Native Chickens

I Nengah Andri Bayu Dita Dita,Ni Ketut Sri Rukmini Ni Ketut Sri Rukmini,Ni Made Yudiastari Ni Made Yudiastari

doi:10.22225/seas.4.2.2322.157-161

I Nengah Andri Bayu Dita Dita, Ni Ketut Sri Rukmini Ni Ketut Sri Rukmini + Show 1 more

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https://doi.org/10.22225/seas.4.2.2322.157-161

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Abstract

This study aims to determine the effect of 1% lysine, 0.5% methionine and the combination of lysine and methionine (1% + 0.5%) in the ration on the weight gain of carcass parts of native chickens. The design used in this study was a completely randomized design (CRD) consisting of 4 treatments and 3 replications, while the treatments were R0 (control) native chickens that were not given additional lysine and methionine, R1 native chickens were given feed containing lysine 1 %, R2 of free-range chickens given feed containing 0.5% methionine, R3 of native chickens given feed containing lysine and methionine (1% + 0.5%). The parameters observed were the weight gain in the chest, thighs, wings, and back. The data obtained were analyzed by analysis of variance. The results showed that the provision of rations which were added with the combination of amino acids lysine and methionine had a very significant effect (P> 0.01) on the weight gain of the carcass, thighs and backs of native chickens aged 10 weeks. Based on the results of this study it can be concluded that the combination of the amino acids lysine and methionine in the ration gave the best effect on the weight gain of carcass parts of native chicken aged 10 weeks. Based on the results of the study, it is suggested to add the combination of lysine (1%) and methionine (0.5%) in the native chicken ration.  Keywords: native chickens, carcass weight, lysine, methionine

Highlights

Native chicken is a local Indonesian chicken with a fairly high population and is spread throughout Indonesia with the production of meat and eggs which play a role in supporting the needs of animal protein [1]
Native chicken has the potential for meat and eggs that are not yet optimal, this is evidenced by the lack of attention to the quality of the ration given in maintenance, the ration given has a low protein content, so that the nutrient needs of native chickens are not fulfilled, this problem can be overcome by increasing the protein content in rations that are assessed from the balance and composition of amino acids, but not all rations contain appropriate protein because rations containing appropriate protein are expensive, so it is necessary to add synthetic amino acids which can increase the efficiency of using the ration according to [2]
Poultry feed derived from vegetable products has a deficiency of amino acids Lysine and Methionine, so it needs to be supplemented into feed in the form of synthetic amino acids

Summary

Introduction

Native chicken is a local Indonesian chicken with a fairly high population and is spread throughout Indonesia with the production of meat and eggs which play a role in supporting the needs of animal protein [1]. Poultry feed derived from vegetable products has a deficiency of amino acids Lysine and Methionine, so it needs to be supplemented into feed in the form of synthetic amino acids. The amino acids that are most difficult to complete in balance are Lysine, Methionine, Cystine, and Tryptophan. These amino acids are called essential amino acids that need to be given to meet needs when compiling rations [3]. Local feed ingredients that are deficient in essential amino acids can be overcome by supplementing with synthetic amino acids to increase the efficiency of feed use in the metabolism of food substances [4]. Based on the foregoing, a study aimed to determine the effect of lysine 1%, 0.5% methionine, and a combination of lysine and methionine (1% + 0.5%) in the ration on the weight gain of chicken carcass parts

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