Publications

Titles

English :

Effect of feed withdrawal and darkening periods on physiological and immunological responses of Muscovy ducks during high environmental temperature

Arabic :

تأثير فترات منع التغذية و الاظلام على الاستجابات الفسيولوجية والمناعية في البط المسكوفى اثناء درجات حرارة البيئة العالية

Abstract

A total of 180 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 duclcs. 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 (T3 ) 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.

Publication year

2009

Pages

307-321

Availability location

معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة

Availability number

Organization Name

Animal Production Research Institute (APRI)

serial title

Egyptian Poultry Science

ISSN