Effect of early-age acclimation on development of small intestine and growth performance in Muscovy ducks during summer season
Abstract: A total of 150 Muscovy ducklings on day one, was used in this study to assess the effect of early heat acclimation on development of small intestine and growth performance in Muscovy ducks during summer season. Ducks were divided into three equal groups during summer season. The control group, was maintained under 32-35 °C during the first week, meanwhile, the second and third groups were exposed to high temperature 38°Cfor 24h at day 30f age (early acclimation 3) and at day 5 of age (early acclimation 5) respectively.
The results indicated that early acclimated groups had increased in body weight and plasma levels of triiodothyronine (T3) and insulin-like growth factor-1 (IGF-1) compared to the control group at all ages. While.
feed passage time significantly decreased in early acclimated groups compared to control group. There were no significant differences between groups in intestinal length and crypt depth due to effect of the experimental treatments while, villous height was significantly increased in early acclimated groups compared to control group. There was no significant differences between groups as affected by age in feed passage time. Intestinal length and crypt depth were significantly increased with age while, there were no significant differences between groups in villous height due to effect of the age.
Results for this study suggest that early acclimation has a stimulating effect on villi development; concentrations of T3 and IGF-1:
and growth performance, which could improve the capability of ducks in counteracting to summer heat stress.
Publication year 2007
Pages 497-512
Availability location معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
City شرم الشيخ
serial title 4th World Poultry Conference 27-30 March 2007, Sharm El-Sheikh, Egypt
Author(s) from ARC
External authors (outside ARC)
    محروسة محمد حسانين المركز القومى للبحوث
Agris Categories Animal physiology - Nutrition
AGROVOC
TERMS		 Ducks. Heat stress. Seasons. Summer.
Proposed Agrovoc growth performance;
Publication Type Conference/Workshop
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