Open AccessOPTIMUM PROTEIN AND ENERGY LEVELS FOR LAYER CHICKENS IN THE HUMID TROPICS
Author(s) -
F. C. Obioha,
I Onyiliogwu
Publication year - 2021
Publication title -
nigerian journal of animal production
Language(s) - English
Resource type - Journals
ISSN - 0331-2062
DOI - 10.51791/njap.v9i2.1999
Subject(s) - zoology , feed conversion ratio , body weight , biology , calorie , protein efficiency ratio , dietary protein , food science , chemistry , endocrinology
In a study involving 12 diet combinations with 3 energy levels (2.6-3.0 Mcal/kg ME), 4 protein levels (14%-20%) 12 calorie-protein ratios (13.13-19.68 Kcal/gm protein) layer chickens performed better on a 3.0 Mcal — 18.45% protein diet (E3.oP18.45) than any other diet, in egg number, egg weight, feed efficiency, protein efficiency ratio, revenue-cost ratio and egg number-feed cost ratio. Average daily feed consumption was 90g. Diets coresponding to N.R.C. levels of E2.85 P15 supported less than 280 Kcal ME or 16.55 g protein daily intake, respectively, and were inferior to the E3.0P18.45 diet.