USE OF THE INTENSITY OF THE SLOWDOWN OF GROWTH IN THE EVALUATION OF SOWS ON THE LEVEL OF ADAPTATION AND SIGNS OF REPRODUCTIVE ABILITY
The features of the growth and repair of pigs of large white breed French selection, indicators of reproductive ability of sows of different levels of adaptation, the coefficients of pair correlation between the features and also criteria of selection of highly productive animals.
It is established that the maximum life expectancy (37,9±1,33 month), the duration of breeding (29,5±1,30 month) and minimum an index value of adaptation (8,52±1,30 month) was characterized by the sow with the intensity ratio of the decrease in the growth rate 58,54-76,64 from animals of this group received the maximum number of farrows (6,0±0,26), piglets (of 86,2±4,37 Gol.), live pigs for breeding period (75,8±3,84 Gol.), and the number of sows which received 100 or more pigs is 23,1 %.
Significant correlation coefficients found between the following pairs of traits: weight at 6 months of age × obtained farrowing (r=+0,281), the absolute increase in live weight × lifetime (r=+0,267), the adaptation index × the received farrowing (r=-0,695), the adaptation index × obtained alive piglets (r=-0,635), the adaptation index × life expectancy (r=-0,437), the adaptation index × the duration of breeding (r=-0,569).
Smirnov, V. S. (2003). Ocenka adaptacii svinomatok k intensivnomu vosproizvodstvu / Zootehnija. 7, 22 – 25. (in Russian).
Merkur'eva, E. K. (1991). Genetika / E. K. Merkur'eva, Z. V. Abramova, A. V. Bakaj i dr. − M.: Agropromizdat, 446. (in Russian).
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