Open AccessDiet manipulation and post-moulting responses in caged commercial laying hens
Author(s) -
A. A. Odunsi,
G. O. Farinu,
V. A. Togun
Publication year - 2021
Publication title -
nigerian journal of animal production
Language(s) - English
Resource type - Journals
ISSN - 0331-2062
DOI - 10.51791/njap.v29i1.1443
Subject(s) - moulting , gizzard , biology , oviduct , follicular phase , zoology , eggshell , medicine , endocrinology , ecology , larva
Two hundred and fifty caged commercial laying hens were induced to moult through a 15-day feed "and water withdrawal programme. Immediate and subsequent effects on egg production and follicular developments were monitored. Results showed that moulted hens attained over 60% egg production after 6 weeks of feeding with increasing egg weight, Post-moulting egg quality values were similar bul globulin were significantly increased (P 0.05) effects. Fasting produced alretic follicles even though follicular number was not appreciably influenced. Follicles were larger with a yellow-yolky appearance during laying than at the fasting period. Mortality of 2.4% was recorded throughout the experimental period. Moulting is a feasible strategy for maintaining egg production in aged, low-producing commercial layers.