An investigation on fertility characteristics of sows and growth performances of piglets bred in a commercial farm [Özel i̇şletme koşullari{dotless}nda yetiştirilen domuzlari{dotless}n döl verimi özellikleri ve yavrulari{dotless}n büyüme performanslari{dotless} üzerinde bir araşti{dotless}rma]

In this study,some fertility characteristics such as fertility,survavilty and growth performance of limited number of sows bred in commercial farm were compared between the two birth season in a production year (autumn and spring). the effect of farrowing season on conception rate,litter size and the number of live born piglets in a litter was found insignificant (p>0.05),the effect of farrowing season on stilborn was found to be significant (p<0.05). it was found out that the effect of birth season,parity,litter size on pre-weaning survival rate of piglets borned in different birth seasons was significant (p<0.05) while the effect of sex was found to be insignificant (p>0.05). the factors,effecting the growth rate of piglets,like birth season,sex,parity,litter size were evaluated and it was found out that the effects of birth season and litter size was significant (p<0.05),but effecting of parity and sex on the growth rate were found insignificant (p>0.05).