Effects of Zinc and Vitamin a Supplements on Plasma Levels of Thyroid Hormones, Cholesterol, Glucose and Egg Yolk Cholesterol of Laying Hens
Küçük Resim Yok
Tarih
2001
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The effects of zinc and vitamin A supplementation to the diet on some blood metabolites were evaluated in Hisex brown laying hens from 56 weeks to 68 weeks of age. A total of 130 birds were divided into two main groups according to vitamin A treatment (0 and 3.44 mg retinyl acetate kg(-1) feed, respectively). each consisting of 65 hens. Hens in both of the main groups were then, divided into five zinc treatment groups (0, 25, 50, 100 and 200 mg zinc kg diet(-1) respectively) of 13 hens each. It was observed that plasma T-4.T-3 and total cholesterol levels were affected by only zinc supplementation. While 100 and 200 mg Zn kg(-1) decreased plasma T-4 level compared to control value. plasma T-3 level was reduced by 100 mg Zn kg(-1) compared to groups fed less Zn. Adding 50 and 200 mg Zn kg(-1) to the diet increased plasma total cholesterol level in the birds compared to other groups. Vitamin A, zinc. and their interaction did not influence the concentration of plasma high-density lipoprotein (HDL)-cholesterol, glucose and egg yolk cholesterol in laying hens.
Açıklama
Anahtar Kelimeler
Kaynak
Research in Veterinary Science
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
71
Sayı
2
Künye
Kaya, S., Keçeci, T., Haliloğlu, S., (2001). Effects of Zinc and Vitamin a Supplements on Plasma Levels of Thyroid Hormones, Cholesterol, Glucose and Egg Yolk Cholesterol of Laying Hens. Research in Veterinary Science, 71(2), 135-139. Doi: 10.1053/rvsc.2001.0500
