THE STUDY REFLECTING THE BODY WEIGHT OF DIFFERENT BREEDS OF RABBITS

Tatiana Dabija, Angela Macari

Abstract
For high productivity of each brunch of animal breeding as well in rabbits rearing, it is necessary a constantly selection of the higher individuals for the next generations, choosing the best posterity with the high indices for the animals reproduction. The breeding work is impossible for future without selection. The biologic material was presented by four groups of females of White New Zeeland, Californian, Chinchila, Albastru Vienez, each group was composed from six animals. All the groups had the same maintenance conditions and the same experimental period. There were studied some breading abilities for example: females' prolfication, kits maintenance, the body weight dynamics of kits nest from the day of birth to 45 days. The body weight had been determined by weighting the nest, using the scales with the accuracy class 1, the limits of minimum weighting 0,1 g, maximum 10 kg. As well there was studied the correlation between nest weight at the parturition, and females prolification. Under de prolification parity the best performances had White New Zeeland breed with 9,16 kits, Chinchila - 8,33, California - 8,16 and Albastru Vienez 7,66 kits. Kits maintenance is an important index and it is connected to the percent of kits surviving untie their weaning and the average of this index makes 97,01%, and vary from 100% at Albastru Vienez to 92,00% at the Chinchila breed. Under the growing dynamic and development study of rabbits there was established that the better weight gain had the rabbits of Chinchila breed, what had the average of body weight per one head at the age of 45 days - 764 g, the lowest index had California breed - 697 g.

Key words: rabbits, prolfication, maintenance, weight gain, nest weight