The effect of some systematic environmental factors on type characteristics of holstei̇n cows

In this study, the linear (linear) and non-linear (100 points) characteristics of 911 cows dairy cattle reared in two plants in Kırklareli and Kırşehir provinces are determined as the milk type (ST), body structure (BY), foot leg structure (ABY) and Breast Structure (MY) are evaluated in four categories.Total comformation score was calculated for each animal by using the linear and nonlinear properties in the enterprises without pedigree and yield records. The average breeding value calculation was made for both enterprises. The effects of these properties on each other and the lactation order, lactation period and the relationship with the enterprise (phenotypic correlations) were investigated. Linear type characteristics were found as follows: SY (8,48 ± 0,96), SK (6,67 ± 1,36), BD (6,98 ± 1,39), GG (7,13 ± 1,93), SG (6 , 28 ± 1,01), SE (5,38 ± 1,88), ABA (6,19 ± 1,27), TY (7,52 ± 0,79), DY (5,34 ± 1,50) , US (4,19 ± 1,41), ÖMB (5,62 ± 1,8), AMY (3,40 ± 1,92), MMB (6,22 ± 2,49), MTY (5, 49 ± 2,01), ÖMBY (5,02 ± 1,45), ÖMBU (6,52 ± 1,31), AMBY (7,44 ± 2,08), VKS (5,25 ± 1,51) as; The scores related to the characteristics of the 100-point system were MYP (84 ± 1.82), ABYP (88,15 ± 0,95), BYP (84,28 ± 1,29), STP (87,91 ± 1,90), and GP (85.68 ± 1.11) was found. Linear Type Score (30,54 ± 0,50), and Total comformation score (51,96 ± 0,64). Linear, type, SK, BD, GG, SG, SE, ABA, TY, USA, MTY, ÖMBY, ÖMBU, VKS points are close to ideal and ideal, SY, DY, ÖMB, AMY, MMB, AMBY scores are far from ideal scores It was observed. It was found that the variation range of the characteristics of the 100-point system was between 77 and 92. Breast structure and body structure scores are good, foot leg structure, milk type score and general score is very good. According to the total comformation score of the average (51.96 ± 0.02), change width (50-54) was determined between. The difference between the enterprises in terms of the characteristics of the environmental factors (SK, VKS, SY, BD, GG, SG, SY, TU, AMY, MTY, ÖMBY, AMBY) on the characteristics of environmental factors is statistically significant (P den 0.001 (P DY 0,01), (ABA, USA), (P) 0,05) and (P> 0,05) are important for the (M 0,0) feature. factor (MYP, ABYP, STP, GP) for the feature is very important (P ≤ 0.001), (BP) score for the insignificant (P> 0.05) was found to be an environmental factor (TKP). (P> 0.5). The effect of the lactation sequence on the linear type properties (SK, VKS, BD, SE, ABA, TY, DY, USA, EMB, MMB, MTY, ÖMBU and AMBY) was significant (p çevresel 0.05), (SY (P> 0.5), the difference for the 100 point system (MYP, ABYP, STP, GP) was found to be statistically significant (P <0.5). The value of TKP in the 1st and 2nd lactation period decreased in decreasing direction in the order of lactation and this value was statistically significant (P <0.05). It was found that the effects of lactation periods on the linear type characteristics of environmental factors were different between the lactation periods on all the characteristics except the BD feature and the differences between the values were found to be statistically significant (P <0.05). The effect of the lactation period on the characteristics of the 100-point system was not statistically significant although there were no differences in MYP, ABYP, STP and GP scores (P> 0.05). BYP increased in the late period and it was found to be significant (P <0.05). It was found that the difference between the lactation periods in terms of TKP was not significant (P> 0.05). 100 points system features and the average of TKP to be close to the ideal values of both enterprises in the dairy cattle farming is done consciously shows. Key Words: Holstein Milk Cows, Linear Scoring, 100 Points System, Total Comformation Score, Business Difference, Lactation Sequence, Lactation Period 2019, 72 Pages