Seasonal Changes of FSH, LH, Total and Free Testosterone Hormones in Saanen Bucks

Çağrı Kandemir; Turgay Taşkın; Nedim Koşum

Makale detayları

Seasonal Changes of FSH, LH, Total and Free Testosterone Hormones in Saanen Bucks

Yazarlar:

Çağrı Kandemir | Turgay Taşkın | Nedim Koşum

Yayıncı:

Tekirdag Namik Kemal University

Dergi:

Tekirdağ Ziraat Fakültesi Dergisi Vol.20 Issue 1, pp.125-133

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001281945

pISSN:

1302-7050

Anahtar kelimeler:

Özet:

 In the study, seasonal changes in follicle-stimulating hormone FSH, lutein hormone LH, total testosterone TTH, and Free Testosterone Hormone FTH of Saanen goats were investigated. In order to determine the hormone levels between February 2019 and December 2019, blood samples were taken from bucks n6 twice a week during the entire trial. FSH level started to decrease relatively after August and the lowest value was determined as 173.01 mlUml in January. The difference between the months in the mean FSH level was found to be significant p 0.05. The highest LH level was obtained in July 13.12 mIUmL and the lowest level 8.02 mIUmL was obtained in May. However, during the mating season, the increase in LH level was found to be similar to the FSH level. The difference in LH levels by months was found to be statistically significant p0.05. Total testosterone level was similar to FSH and LH levels. The highest and lowest total testosterone hormone TTH levels in March and January, respectively; 3.03 ng-mL and 0.62 ng--mL. The highest free testosterone hormone FTH level was 119.69 pgml in August and the lowest was 29.09 pgml in December. The difference between FTH by months was significant p0.05. The effect of day length on seasonal variation of reproductive hormones in Saanen bucks is statistically significant p0.05. As a result, it was determined that reproductive hormone levels in Saanen bucks depend on the season and the release levels are significantly affected by climatic factors such as day length. To summarize, there is a need for more different studies including sampling frequency, sampling time as well as sample size, and other environmental factors in order to examine the effects of male reproductive characteristics and other important hormones in bucks in more detail to interpret the results more accurately.

 In the study, seasonal changes in follicle-stimulating hormone FSH, lutein hormone LH, total testosterone TTH, and Free Testosterone Hormone FTH of Saanen goats were investigated. In order to determine the hormone levels between February 2019 and December 2019, blood samples were taken from bucks n6 twice a week during the entire trial. FSH level started to decrease relatively after August and the lowest value was determined as 173.01 mlUml in January. The difference between the months in the mean FSH level was found to be significant p 0.05. The highest LH level was obtained in July 13.12 mIUmL and the lowest level 8.02 mIUmL was obtained in May. However, during the mating season, the increase in LH level was found to be similar to the FSH level. The difference in LH levels by months was found to be statistically significant p0.05. Total testosterone level was similar to FSH and LH levels. The highest and lowest total testosterone hormone TTH levels in March and January, respectively; 3.03 ng-mL and 0.62 ng--mL. The highest free testosterone hormone FTH level was 119.69 pgml in August and the lowest was 29.09 pgml in December. The difference between FTH by months was significant p0.05. The effect of day length on seasonal variation of reproductive hormones in Saanen bucks is statistically significant p0.05. As a result, it was determined that reproductive hormone levels in Saanen bucks depend on the season and the release levels are significantly affected by climatic factors such as day length. To summarize, there is a need for more different studies including sampling frequency, sampling time as well as sample size, and other environmental factors in order to examine the effects of male reproductive characteristics and other important hormones in bucks in more detail to interpret the results more accurately.

 In the study, seasonal changes in follicle-stimulating hormone FSH, lutein hormone LH, total testosterone TTH, and Free Testosterone Hormone FTH of Saanen goats were investigated. In order to determine the hormone levels between February 2019 and December 2019, blood samples were taken from bucks n6 twice a week during the entire trial. FSH level started to decrease relatively after August and the lowest value was determined as 173.01 mlUml in January. The difference between the months in the mean FSH level was found to be significant p 0.05. The highest LH level was obtained in July 13.12 mIUmL and the lowest level 8.02 mIUmL was obtained in May. However, during the mating season, the increase in LH level was found to be similar to the FSH level. The difference in LH levels by months was found to be statistically significant p0.05. Total testosterone level was similar to FSH and LH levels. The highest and lowest total testosterone hormone TTH levels in March and January, respectively; 3.03 ng-mL and 0.62 ng--mL. The highest free testosterone hormone FTH level was 119.69 pgml in August and the lowest was 29.09 pgml in December. The difference between FTH by months was significant p0.05. The effect of day length on seasonal variation of reproductive hormones in Saanen bucks is statistically significant p0.05. As a result, it was determined that reproductive hormone levels in Saanen bucks depend on the season and the release levels are significantly affected by climatic factors such as day length. To summarize, there is a need for more different studies including sampling frequency, sampling time as well as sample size, and other environmental factors in order to examine the effects of male reproductive characteristics and other important hormones in bucks in more detail to interpret the results more accurately.

 Araştırmada, Saanen tekelerine ait folikül uyarıcı hormon FSH, lutein hormon LH, toplam testosteron TTH ve Serbest Testosteron Hormonunun FTH mevsimsel değişiklikleri incelenmiştir. Şubat 2019 ile Aralık 2019 arasındaki aylarda hormon düzeylerinin belirlenmesi için tekelerden n6 haftada iki kez olmak üzere tüm deneme süresince kan örnekleri alındı. FSH düzeyi, ağustos ayından sonra göreli olarak düşmeye başlamış ve en düşük değer ocak ayında 173.01 mlUml olarak belirlenmiştir. FSH düzeyi ortalamalarında aylar arasındaki fark anlamlı bulunmuştur p 0.05. En yüksek LH düzeyi Temmuz 13.12 mIUmL ve en düşük düzey ise 8.02 mIUmL mayıs ayında elde edilmiştir. Ancak çiftleşme mevsiminde, LH düzeyindeki artışın FSH düzeyiyle benzer olduğu saptanmıştır. Aylara göre LH düzeylerindeki fark istatistiksel olarak önemli bulunmuştur p0.05. Toplam testosteron düzeyi, FSH ve LH düzeyi ile benzerlik göstermiştir. Mart ve ocak aylarında en yüksek ve en düşük toplam testosteron hormonu TTH düzeyi sırasıyla; 3.03 ng-mL ve 0.62 ng--mL dir. En yüksek Serbest testosteron hormonu FTH düzeyi ağustos ayında 119.69 pgml, en düşük ise aralık ayında 29.09 pgml olarak belirlenmiştir. Aylara göre FTH arasındaki fark anlamlıdır p0.05. Saanen tekelerinde üreme hormonlarının mevsimsel değişimi üzerine gün uzunluğunun etkisi istatistiki olarak önemlidir p0.05. Sonuç olarak, Saanen tekelerinde üreme hormonu düzeylerinin mevsime bağlı olduğu ve salım düzeylerinin gün uzunluğu gibi iklimsel faktörlerden önemli ölçüde etkilendiği belirlenmiştir. Özetlemek gerekirse, tekelerde erkek üreme özellikleri ve diğer önemli hormonların etkilerini daha ayrıntılı incelemek ve sonuçların daha sağlıklı yorumlanabilmesi için örnek alma sıklığı, örnek alma zamanının yanı sıra örnek büyüklüğü ve diğer çevresel faktörlerin de içinde yer aldığı daha farklı çalışmalara da ihtiyaç vardır.

Makale detayları

Seasonal Changes of FSH, LH, Total and Free Testosterone Hormones in Saanen Bucks

Yazarlar:

Çağrı Kandemir | Turgay Taşkın | Nedim Koşum

Yayıncı:

Tekirdag Namik Kemal University

Dergi:

Tekirdağ Ziraat Fakültesi Dergisi Vol.20 Issue 1, pp.125-133

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001281945

pISSN:

1302-7050

Saanen buck

Reproductive hormone

Seasonal change

Free testosterone hormone

Annual cycle

Saanen teke

Üreme hormonu

Mevsimsel değişim

Serbest testesteron hormonu

Yıllık döngü

Sayı

Makale detayları

Yazarlar: Çağrı Kandemir | Turgay Taşkın | Nedim Koşum

Yayıncı: Tekirdag Namik Kemal University

Dergi: Tekirdağ Ziraat Fakültesi Dergisi Vol.20 Issue 1, pp.125-133

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001281945

pISSN: 1302-7050

Sayı

Yazarlar:

Çağrı Kandemir | Turgay Taşkın | Nedim Koşum

Yayıncı:

Tekirdag Namik Kemal University

Dergi:

Tekirdağ Ziraat Fakültesi Dergisi Vol.20 Issue 1, pp.125-133

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001281945

pISSN:

1302-7050