 |
|
|
|
Year 2016 - Volume 36, Number 1
|
|
Productive and reproductive parameters of dairy cows in free stall, 36(1):55-61
|
ABSTRACT.- Villadiego F.A.C., Pereira J.V., Guimarães J.D., Costa E.P., Marcondes M.I., Leon V.E.G., Maitan P.P. & Nogueira A.R. 2016. [Productive and reproductive parameters of dairy cows in free stall.] Parâmetros reprodutivos e produtivos em vacas leiteira de manejo free stall. Pesquisa Veterinária Brasileira 36(1):55-61. Setor de Reprodução e Produção Animal, Universidade Federal de Viçosa, Av. Peter Henry Rolfs s/n, Campus Universitário, Viçosa, MG 36570-000, Brazil. E-mail: faider_cas@hotmaill.com
The reproductive and productive parameters in postpartum of 51 primiparous and pluriparous Holstein cows housed in free stall were obtained. The values measured were: body condition score at parturition (3.47±0.4), interval from parturition to first ovulation (5.89±3.4 weeks), interval parturition at first service (112.5±57.0 days), first-service pregnancy rate (43.6%) and during the experimental period (76.4%). No difference was found between parturition order (P>0.05). The accumulated milk production until conception time, daily production until conception time, and adjusted 305-day milk production was respectively 3,335.6±1,488.4; 25.8±5.4 and 7,424.0±1,877.8 liters. In free stall of this study the estrus detection was the most limiting factor to improve the reproductive efficiency. |
| |
|
|
| |
|
|
