Histological Analysis of Breast Muscle Growth in Young Hybrid Chickens in Response to Different Dietary Energy-Protein Ratios
Penulis/Author
Dr.med.vet. drh. Hendry T.S.S.G. Saragih, M.P. (1); NURMADHITA UNIKE HARILAFIN (2); AYUDHA BAHANA I P (3); RENDY TRI UTOMO (4); UTIN ELSYA PUSPITA (5); Indra Lesmana, S.Si., M.Sc. (6); Prof. Dr. Budi S. Daryono, M.Agr.Sc. (7); Prof. Ir. Yuny Erwanto, S.Pt., M.P., Ph.D., IPM (8)
Tanggal/Date
19 2019
Kata Kunci/Keyword
Abstrak/Abstract
Objective: The aim of this study was to analyze the increase in body weight and growth of breast muscle in hybrid chickens in response
to varied dietary energy-protein ratios. Materials and Methods: Four different starter diet formulae were given to one-day-old hybrid
chickens (DOCs) for 14 days. One hundred twenty one-day-old hybrid chickens were randomly allotted into four diet groups with 3
replicate pens consisting of 10 DOCs each. The first group was given starter diet I containing 25.1% crude protein (CP) and 3500 kcal kgG1
metabolizable energy (ME), the second group was given starter diet II (22% CP; 3200 ME), the third group was given starter diet III
(22.7% CP; 3400 ME) and the fourth group was fed starter diet IV (18% CP; 3200 ME) during a 14-day observation period. Body weight was
assessed in chickens post hatching and at 3, 7 and 14 days of age. Muscle weight and size and the cross-sectional area of the myofibers
were assessed at 7 and 14 days of age. Results: Body weight, muscle weight and area and myofiber area of the hybrid chickens fed starter
diets III and IV were significantly lower than those of chickens fed diets I and II. Conclusion: A hybrid chicken starter diet with an ME-CP
ratio of approximately 139-145 is optimal for maximizing body weight and breast muscle growth.
