Özet:

In this study, phenotypic and genetic parameters for the laktation period (LS), laktation milk productivity (LSV) and 305-g milk productivity (305-gSV) were predicted from the records held between 2001-2008 of 22 that cultivated the Montbeliarde (MB) and Black-Alaca (SA) races together in Aydin Province. The parameters estimated that a total of 1,005 LS, 987 LSV and 1,100 305-gSV records were used, which belong to 418 head SA and 209 head MB breed cows. For MB races, the LS, LSV and 305-gSV average was calculated as 317.16±4.748 days respectively, 6,546.41±114.937 kg and 6,227.12±68.469 kg, while the inheritance rate (h2) of the characteristics was estimated as 0.07±0.06, 0.32±0.07 and 0.36±0.07 respectively. The average LS, LSV and 305-gSV for the SA race is respectively 328.32±4.492 days, 7,241.85±108.885 kg and 6,748. 61 ± 64.080 kg, the inheritance rate (h2) is estimated at 0.09 ± 0.05, 0.26 ± 0.05 and 0.36 ± 0.04. The impact of the business and ice cream year is important for the milk productivity characteristics (P < 0.01), the race effect is important for LSV and 305-gSV for P < 0.01, for LS for P < 0.05. The blurry effect was significant for 305-gSV (P < 0.01), while the lactation sequence effect was significant for LSV and 305-gSV (P < 0.01). The SA race was 11.2 days long from MB to LS and had 695.4 kg and 521.5 kg high LSV and 305-gSV respectively.

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