Impacts of vitamin C and E injections on ovarian structures and fertility in Holstein  cows under heat stress conditions

Juan GOZALEZ-MALDONADO; Raymundo RANGEL-SANTOS; Raymundo RODRIGUEZ-DE LARA; Gustavo RAMIREZ-VALVERDE

Makale detayları

Impacts of vitamin C and E injections on ovarian structures and fertility in Holstein cows under heat stress conditions

Yazarlar:

Juan GOZALEZ-MALDONADO | Raymundo RANGEL-SANTOS | Raymundo RODRIGUEZ-DE LARA | Gustavo RAMIREZ-VALVERDE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2017 Vol.41 Issue 3, pp.345-350

Belge Tipi:

Makale

Yayın Tarihi:

6/2017

Belge Dili:

İngilizce

Document ID (Org No.):

2000764940

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128

Özet:

 

This study evaluated the effect of injecting vitamin C (VC) and E (VE) on size of the preovulatory follicle, volume of the corpus luteum, and pregnancy rates in Holstein cows under heat stress conditions (temperature humidity index > 74). Sixty-two cows were randomly assigned to one of four treatments: 1, control, n = 15: cows were not supplemented with vitamins; 2, VCG, n = 15: cows were simultaneously injected i.v. with 500 and s.c. with 2500 mg of VC before and after estrus; 3, VEG, n = 15: cows received an i.m. injection of 3000 IU of VE before estrus; 4, VCEG, n = 17: cows were injected with VC and VE in the same way and doses as in treatments 2 and 3. Treatment did not significantly affect any of the measured variables, despite a numerical increase in pregnancy rates in cows injected with vitamins (7.5 ± 7.3%, 9.6 ± 9.4%, 15.1 ± 10.0%, and 18.34 ± 9.9% for control, VCG, VEG, and VCEG, respectively). In conclusion, injections of vitamin C and E did not affect either the development of the preovulatory follicle and the corpus luteum or pregnancy rates in Holstein dairy cattle under heat stress conditions.

Makale detayları

Impacts of vitamin C and E injections on ovarian structures and fertility in Holstein cows under heat stress conditions

Yazarlar: Juan GOZALEZ-MALDONADO | Raymundo RANGEL-SANTOS | Raymundo RODRIGUEZ-DE LARA | Gustavo RAMIREZ-VALVERDE

Yayıncı: TUBITAK

Dergi: Turkish Journal of Veterinary and Animal Sciences 2017 Vol.41 Issue 3, pp.345-350

Belge Tipi: Makale

Yayın Tarihi: 6/2017

Belge Dili: İngilizce

Document ID (Org No.): 2000764940

Sıklık: İki Aylık

eISSN: 1303-6181

pISSN: 1300-0128

Sayı

Yazarlar:

Juan GOZALEZ-MALDONADO | Raymundo RANGEL-SANTOS | Raymundo RODRIGUEZ-DE LARA | Gustavo RAMIREZ-VALVERDE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2017 Vol.41 Issue 3, pp.345-350

Belge Tipi:

Makale

Yayın Tarihi:

6/2017

Belge Dili:

İngilizce

Document ID (Org No.):

2000764940

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128