SÜTÇÜ İNEKLERDE SICAKLIK STRESİNİN DÖL VERİMİ ÜZERİNE ETKİSİ
Öz
ÖZET
Bu derlemede; yaz aylarında sütçü ineklerde artış gösteren infertilitede etkili olan sıcaklık stresinin döl verimi üzerine olan olumsuz etkileri, etki etme şekilleri ve bu olumsuz etkileri azaltmanın yolları tartışılmaktadır.
Anahtar Kelimeler: inek, sıcaklık stresi, döl verimi
ABSTRACT
THE EFFECT OF HEAT STRES ON REPRODUCTION IN THE DAIRY COWS
In this review article, negative and pathways of effect of heat stress on reproductive performance of dairy cows with increased infertility in summer season, and the approaches how to decrease these negative effects have been discussed.
Key Words: Cows, Heat stress. Reproduction
Anahtar Kelimeler
Kaynakça
- Alnmier, M . De Rosa, C , Grasso, F . , Napolitana, F . , Bordi, A.: Effect of climate on the
- response of three oestrus synchronisation tcchniques in lactating dairy cows. Anim Reprod
- Sci, 2002; 71: 157-68.
- De Rensis, F . Scaramuzzi, R . J . : Heat stress and seasonal effects on reproduction in the dairy cow-arevİew. Theriogcnology, 2003: 60: 1139-51.
- De Rensis, F . Marconi, P., Capelli, T . , Gatti, F . , Facciolongo, F . , Franzini , S., et al.: Fertility in postpartum dairy cows in vvinter or summer follo\ving eslrous synchronization and fixed lime A . I . after the induction of an LH surgc with GnRH or hCG. Theriogenoloay, 2002; 58: 1675-87.
- Drew, B.: Practical nutrition and managment of heifers and high yielding dairy cows for optimal fertility. Catlle Practice, 1999; 7: 243^18.
- Gauthier, D.: The influence of season and shade on estrous behaviour. timing of preovulatory LH surgc and the pattern of progesterone secretion in FFPN and Creole heifers in atropical climate. Reprod Nutr Dev. 1986; 26: 767-75.
- Gilad, E., Meidan, R., Berman, A., Graber, Y-, VVolfenson, D.: Effect of heat stress on tonic and GnRH-induced gonadotrophin secretion in relation to concentration of estradioi in plasmaofcycliccovvs. J Reprod Fertil. 1993; 99: 315-21.
Ayrıntılar
Birincil Dil
Türkçe
Konular
-
Bölüm
-
Yayımlanma Tarihi
15 Mart 2013
Gönderilme Tarihi
15 Mart 2013
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 2005 Cilt: 31 Sayı: 2