Reproductive traits of purebred sows of first farrowing of national and import selection | Репродуктивные качества чистопородных свиноматок-первоопоросок отечественной и импортной селекции
2011
Kardach, I.I., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
The studies helped to establish levels of productivity and real signs of difference of reproductive traits in purebred breeding of Landrace breed sows of French selection, two lines of which were in experimental groups, and sows of Belarusian meat breed, which appeared as control group. It was determined that the purebred sows of FL breed on reproductive traits had a higher mean square deviation and variation coefficient than of purebred sows of the control group, indicating the presence of reserve to further increase of productivity. The comparative evaluation of the reproductive traits of purebred sows of Landrace breed of sows of Belarusian meaty breed showed that according to multiple fetation indexes and litter weight at birth the decisive superiority (on 1,03 head and 1,05 kg) was taken by the purebred sows of Landras breed. According to lactescence indexes the sows of Landrace breed showed lower indexes on 1,1 kg than sows of Belarusian meaty breed. According to indexes of piglet quantity and litter weight on the 35th day the decisive superiority (on 0,98 head and 7,95 kg) was taken by the purebred sows of Landras breed.
显示更多 [+] 显示较少 [-]