Effects of body condition score and daily milk yield on reproduction traits of Czech Fleckvieh cows
Stadnik, Ludek; Atasever, Savas; Ducháček, Jaromir.
Anim. Reprod.;
14(supl. 1): 1264-1269, 2017. tab
Artigo
em Inglês
| VETINDEX
| ID: vti-728532
Resumo
The objective of this study was to Evaluate the effects of body condition score (BCS) and daily milk yield (DMY) on reproductive characteristics of dairy cows. A total of 1249 records of Czech Fleckvieh cows raised at a private farm in Prague were enrolled. Dairy cows were grouped according toBCS (1 = ≤3.75, 2= 4-4.25 and 3 =≥ 4.50) and DMY groups (<20kg, 20-30 kg and >30kg). Number of inseminations per pregnancy (NI), days open (DO), service period (SP) and ovarian cyst (OC) cases were evaluated as reproduction characteristics. While the group with BCS ≥4.50 presented higher DO, the group with BCS≤ 3.75 had lower OC cases when compared with other BCS groups. The group with DMY ˂20 kg had higher DO but lower OC cases than other DMY groups. Significant correlations were estimated between SP and NI (r = 0.843) or DO (r = 0.256), and between OC and DO (r = 0.546). The results revealed the effects of BCS and DMY on DO and OC and associations of reproduction traits each other. Therefore, close tracking production and reproduction data is suggested as a major process to prevent fertility problems and to obtain high productivity in dairy cows.(AU)
Biblioteca responsável:
BR68.1
Localização: BR68.1
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