| Titles |
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English :
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Prediction of 305-da y milk yield from partial records of Egyptian buffalo using regression procedure
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Arabic :
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التنبوء بكمية اللبن عند 305 يوم حليب من السجلات الجزئية في المواسم الثلاثية الاولى للجاموس المصرى
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| Abstract |
Multiple linear regression procedure was used to predict 305-day milk yield for a total of 1932 lactation records in the first three lactations of Egyptian buffalo. The seventh monthly record (M7) had high and positive correlation with 305-day milk yield of the first lactation (r = 0.79). The corresponding figures for the second and third lactations were 0.80 and 0.77 for M6 and MS, respectively. Milk yield in 305-day length was best predicted using the first six monthly records. The multiple regression equation explained 92.0, 92.0 and 90.4% of variation in 305-day milk yield in the first three lactations; respectively. The increase in R2 with adding extra months was negligible.
Key Words: Buffalo, milk yield, monthly records, regression equation.
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| Publication year |
2009
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| Pages |
30-40
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| serial title |
Egyptian journal of Applied Science
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| ISSN |
1110-1571
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| Author(s) from ARC |
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| Agris Categories |
Animal husbandry
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AGROVOC
TERMS |
Milk yield.
Water buffaloes.
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| Proposed Agrovoc |
monthly records;regression equation;
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| Publication Type |
Journal
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