Akademik Veri Yönetim Sistemi
2nd International Livestock Studies Congress, Antalya, Türkiye, 28 - 31 Ekim 2021, ss.42
The aim of this research was to determine some non-infectious factors [sex of calf (SC), calf birth weight (CBW), calving season (CS), dam parity (DP) and dam body condition score at dry (BCSD and calving (BCSC) that can under control by breeders affecting calf health status (CHS) in neonatal period. 517 calves (from delivery of calf until 28 days) and their dams (at dry and calving) were assessed according to study criteria. All BCS were assigned by one individual using the visual technique developed by Edmonson et al. (1989). CHS were scored using the calf health scoring chart University of Madison Wisconsin School of Veterinary Medicine www.vetmed.wisc.edu/dms/fapm/fapmtools/calves.htm. Chi-square tests were performed to investigate the relationship between maternal BCS, DP, SC, CS and CHS. Similarly, CBW and their relationship with CHS was examined. ANOVA was used to investigate the effects of BCSD, BCSC, DP and SC on CBW. SPSS program (2008) was used for statistical analysis. According to study results, connection between CHS and BCSD, CS, CBW was found important, 59% of healthy calves are in 3,0 ≤ BCSD ≤3,75 interval, CHS is maximum in spring (64%), minimum in winter (49%), CHS was maximum in 42,31 ≤ CBW ≤ 54,59 interval. Also, influences of DP, SC BCSC and BCSD on CBW were examined and while effects of DP and SC on CBW were found important (P<0.05, P<0.01 respectively), effects of others were not. As a conclusion, according to the results, the practical solution can be that management practices must focus on these non-infectious determinants that largely can under control to reduce the prevalence of neonatal morbidity and improve neonatal CHS in dairy herds.