Pregled bibliografske jedinice broj: 578328
Anovulatory estrus in dairy cows: treatment options and influence of breed, parity, heredity and season on its incidence
Anovulatory estrus in dairy cows: treatment options and influence of breed, parity, heredity and season on its incidence // VETERINARSKI ARHIV, 82 (2012), 3; 239-249 (međunarodna recenzija, članak, znanstveni)
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Naslov
Anovulatory estrus in dairy cows: treatment options and influence of breed, parity, heredity and season on its incidence
Autori
Zobel, Robert ; Pipal, Ivana ; Buić, Vlatka
Izvornik
VETERINARSKI ARHIV (0372-5480) 82
(2012), 3;
239-249
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
anovulatory estrus; breed; cattle; heredity; quartile; treatment
Sažetak
The aim of the study was to establish the anovulatory estrus incidence in different breeds and reproductive age of dairy cattle in Croatia and to assess the effectiveness of the hormone therapy as a treatment option. A total of 820 cows of different breeds and age were involved in the study during two years. Anovulatory estrus was recorded in 25.61% of observed cows and heifers. The highest anovulatory estrus ratio was recorded in heifers and the lowest in cows after the 6th pregnancy (P<0.05). Concerning the breed, the highest anovulatory estrus ratio was diagnosed in the Crossbreeds and the lowest in the Simmental breed (P<0.05). The highest anovulatory estrus incidence was recorded during the summer months (III quartile of the year) (P<0.05). Heredity of anovulatory estrus was found to be statistically significant. Therapy success was measured by the number of days starting by the day of the anovulatory estrus diagnose confirmation until the day of the first artificial insemination with confirmed ovulation. The best results were achieved in the group T of animals treated twice in 20 days interval with Gonadotropin Releasing Hormone analogues (P<0.05). Vitamins (A, D, E) and mineral (Selenium) supplement in the cows of the group A also improved therapy results if compared to the control (untreated) group C (P<0.05), although less significant if compared to the group T (P<0.05). We conclude that anovulatory estrus is hereditary condition and related to the lack of Gonadotropin Releasing Hormone as well as the lack of vitamins and minerals.
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Veterinarska medicina
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
Uključenost u ostale bibliografske baze podataka::
- Rural Sociology Abstracts (CAB Abstracts)
