التفاصيل البيبلوغرافية
| العنوان: |
Relationships Between Partial Milk Yield and Actual Milk Yield According to Parity in Buffaloes. |
| المؤلفون: |
SOYSAL, Mehmet İhsan, GÜRCAN, Eser Kemal, ÖZKAN ÜNAL, Emel |
| المصدر: |
Yuzuncu Yil Universitesi Journal of Agricultural Sciences (YYU J Agr Sci); Mar2024, Vol. 34 Issue 1, p128-137, 10p |
| مصطلحات موضوعية: |
MILK yield, MULTIPLE regression analysis, MILK contamination, LINEAR equations |
| مستخلص: |
In this study, the relationships between 100-day of partial milk yield and 270-day of additive and total milk yield of buffaloes according to different parity were investigated. A total of 697 lactation records belonging to 135 heads of buffalo and seven lactations were used in the material. The relationships between the animals' 100-day partial milk yield for 270-day and total milk yield were analyzed for seven lactations. In the study, 100-day milk yield was taken as an independent variable, 270-day and total milk yields as dependent variables, and possible relationships were determined according to simple and multiple linear regression analysis methods. The average lactation period was 256.74 ± 2.61 days, the average 270-day additive milk yield was 2078 ± 65.26 litres and the average total milk yield was 1831 ± 89.57 litres. The daily average milk yields were 7.69 ± 0.11 and 7.08 ± 0.07 litersfor 270-day and 100-day respectively. The correlation coefficients were calculated for each parity and calculated as 0.901 (p < 0.01) between the 100-day and 270-day additive yield for the general group. The simple and multiple linear regression equations were shown as [V270 = 470.72 + 1.737 V100 (R² = 80.2%)], [V270 = 966.23 + 0.645 V100 + 0.001V100 ² (R² = 82.4%)] for the groups. As the parity of lactation increased, it was seen that the determination coefficients were increased. Finally, predicting the total lactation yield by using 100-day of partial milk yield has the highest accuracy. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |