Actual production traits of pig nucleus herds in the CR
|Cathegory||Publication in specialized journals|
The current status of basic production traits of pig nucleus herds in 2014 involved in the Czech national breeding program was evaluated in the study. Production traits of all pig breeds in the Czech Republic were assessed and compared with the values defined in the current breeding goal of the appropriate breed. Average productive lifetime of sows in nucleus herds was 2.9 reproduction cycles. The main reasons for discarding of sows were: culling (36 %), low conception rate (13 %), low fertility (8%), death (9%) and age (6 %). The proportion of hybridization was 31 % (25 % in Duroc breed to 42% in Czech large white-dam line) within evaluated nucleus herds. Average daily gain of young boars of sire breeds during the unified testing was only 8 % below the value of the actual breeding goal. Lean meat proportion of male pigs measured by ultrasound was 64.5 %, on average, which is higher than the breeding goal. The main reproduction indicators of sows of super prolific lines were only slightly below their breeding goals. In contrast, reproduction parameters of dam breeds (13 piglets born alive per litter and 23.8 piglets survived per sow and year) was below the level defined in the current breeding goal. Therefore, attention of the farmers and breeders should be focused on their improvement. Moreover, the quality and quantity of records for sow withdrawal should be improved in breeding herds.
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