İHSAN KELEŞ, Nurcan DÖNMEZ, NURİ ALTUĞ, EBUBEKİR CEYLAN

Serum zinc, copper and thyroid hormone concentrations in heifers with retarded growth

Bu çalışmada gelisme geriligi problemleri olan düvelerde Zn, Cu ve tiroid hormon konsantrasyonlarının rolünü arastırmak amaçlandı. Çalısmada Yüzüncü Yıl Üniversitesi Veteriner Fakültesi İç Hastalıkları kilinigine getirilen 6-12 aylık yaşlarda 35-50 kg canlı agırlıgında 11 adet (Test Grubu) ve normal canlı ağırlığında (80-100 kg) 6 adet (Kontrol Grubu) Dogu Anadolu Kırmızısı düve materyal olarak kullanıldı. Klinik olarak enfeksiyon ve paraziter enfestasyon teshis edilemedi. Bu nedenle, büyüme çagındaki düvelerde gelisme geriligine neden oldugu bilinen iz element ve troid hormon durumları arastırıldı. Kontrol grubundan elde edilen degerlerle karsılastırıldıgında test grubunda Zn, Cu, T3, FT3, T4 ve FT4 degerlerinin daha düsük olmasına ragmen, sadece Zn (p

Anahtar Kelimeler:

çinko, hayvan fizyolojisi, büyüme geriliği, düve, tiroid hormonları, somatotropin, dişi hayvanlar, yemden yararlanma, bakır

Gelişme geriliği gösteren düvelerde serum çinko, bakır ve tiroid hormon konsantrasyonları

In the present study the role of Zn, Cu and thyroid hormone concentrations in the heifers having retardation of the growth problem were aimed to investigate. In this study, 11 Eastern Anatolian Red heifers weighing 35-50 kg body weight (test group) and 6 Eastern Anatolian Red heifers in normal body weight (80-100 kg) (control group) aged between 6-12 months brought to the University of Yuzuncu Yil, Faculty of Veterinary Medicine, Department of Internal Diseases were used as materials. Clinically, infection and parasiter infestation could not be diagnosed. Therefore, trace elements and thyroid hormone status that are known to cause retardation of growth in the growing heifers were investigated. Although Zn, Cu, T3, FT3, T4 and FT4 values were lower in the test group compared to the values obtained from control group, the differences were statistically important only in Zn (p<0.05), T4 and FT4 (p<0.01) values. Therefore, it was concluded that inadequate and unbalanced feeding, specifically in Zn and Cu content, caused retardation of growth in test group via causing absorption disorders, reduction in the feed efficiency and thyroid hormone concentrations, which are the stimulator of growth hormone.

Keywords:

zinc, animal physiology, growth retardation, heifers, thyroid hormones, somatotropin, female animals, feed conversion efficiency, copper,

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Yüzüncü Yıl Üniversitesi Veteriner Fakültesi Dergisi-Cover

ISSN: 1017-8422
Yayın Aralığı: Yılda 3 Sayı
Başlangıç: 1990
Yayıncı: Yüzüncü Yıl Üniv. Veteriner Fak.

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