Effects of different induced moulting methods on plasma thyroid hormones of laying hens

Kemal Özdem ÖZTABAK; Gülhan TÜRKAY HOŞTURK; Cevat NİSBET

Makale detayları

Effects of different induced moulting methods on plasma thyroid hormones of laying hens

Yazarlar:

Kemal Özdem ÖZTABAK | Gülhan TÜRKAY HOŞTURK | Cevat NİSBET

Yayıncı:

The Chamber of Veterinary Surgeons, Istanbul

Ana Başlıklar:

Hayvancılık

Dergi:

Journal of Istanbul Veterinary Sciences 2007 Issue 1, pp.1-13

Belge Tipi:

Makale

Yayın Tarihi:

5/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000485600

Sıklık:

Üç Yıllık

eISSN:

2602-3490

pISSN:

2602-3490

Özet:

 


The objective of the study is to
assess the effect of two different induced moulting methods on plasma thyroxine
(T4) and triiodothyronine (T3) concentrations of laying
hens. In this study, 96 Isabrown hens, 72weeks of age were used. The hens were
randomly divided into two rooms. Two control groups (FAST CON and Lo Na CON)
were caged in the first room, each containing 24 hens, and two treatment groups
(FAST and Lo Na) were caged in the second room, each containing 24 hens.  Feed was withdrawn from the hens in the first
treatment group (FAST) for 10 days and water were provided ad libitum.
The photoperiod was reduced to 7h/day. On day 11, hens consumed the standard
pullet grower rationad libitum until day 41 and hens were returned the
standard full feed layer ration and received. Lo Na group was fed layer ration
containing 0.08 % sodium until 41 days. The hens in the control groups were fed the standard layer ration during
experimental periods. In both experimental groups, plasma T3 concentrations
in the premoult period were lower than moulting periods (p<0.05). The plasma
T4 concentrations in premoult period were also measured lower than
moult and postmoult periods (p<0.05). When two moulting procedures compared
with each other, T4 concentrations of Lo Na group were higher than
FAST group. But, T3 concentrations of both experimental groups were
nearly similar with each other, except postmoult period. As conclusion, results
of this study indicated that low sodium diet as effective as fasting method, when T3 and T4 concentrations
were taken into consideration. 



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Makale detayları

Effects of different induced moulting methods on plasma thyroid hormones of laying hens

Yazarlar: Kemal Özdem ÖZTABAK | Gülhan TÜRKAY HOŞTURK | Cevat NİSBET

Yayıncı: The Chamber of Veterinary Surgeons, Istanbul

Ana Başlıklar: Hayvancılık

Dergi: Journal of Istanbul Veterinary Sciences 2007 Issue 1, pp.1-13

Belge Tipi: Makale

Yayın Tarihi: 5/2007

Belge Dili: Türkçe

Document ID (Org No.): 2000485600

Sıklık: Üç Yıllık

eISSN: 2602-3490

pISSN: 2602-3490

Sayı

Yazarlar:

Kemal Özdem ÖZTABAK | Gülhan TÜRKAY HOŞTURK | Cevat NİSBET

Yayıncı:

The Chamber of Veterinary Surgeons, Istanbul

Ana Başlıklar:

Hayvancılık

Dergi:

Journal of Istanbul Veterinary Sciences 2007 Issue 1, pp.1-13

Belge Tipi:

Makale

Yayın Tarihi:

5/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000485600

Sıklık:

Üç Yıllık

eISSN:

2602-3490

pISSN:

2602-3490