Effect of feed with drawal and darkening periods on physiological and immunological responses of muscovy ducks during high environmental temperature [electronic resouce].
Language: English Summary language: Arabic Description: p.307-321Other title:- تأثير فترات منع التغذية والاظلام علي الاستجابات الفسيولوجية والمناعية في البط المسكوفي اثناء درجات حرارة البيئة العالية [Added title page title]
- Egyptian poultry science journal, 2009 v. 29 (I) [electronic resouce].
Includes references.
A total of180 one day-old Muscovy ducklings were used to assess the effect of feed withdrawal and darkness on, triiodothyronine (T3) hormones, some plasma metabolites, immune response, respiration rate and body temperature in Muscovy ducks during summer season. The ducklings were distributed randomly into three equal experimental groups, each one had 60 ducks. The first group was used as control. Ducklings in the second group (feed Withdrawal) were subjected to feed removal from 11:00 to .16:00h, and ducklings in the third group (darkning) were subjected to light restriction from 11:00 to 16:00h Feed withdrawal and darkning treatments improved the respiration rate, body temperature and immune responses than the control. Plasma levels of triiodothyronine (TJJ were not affected by feed removal and darkness period There was no Significant differences in plasma total protein, globulin and albumin concentration among groups, but plasma creatinin, and uric acid values in feed withdrawal and darkening groups were decreased Significantly as compared to control group,
Summary in Arabic.
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