Relationship between linear type and fertility traits in Nguni cows
نویسندگان
چکیده
منابع مشابه
Relationship between linear type and fertility traits in Nguni cows.
The objective of the study was to assess the dimensionality of seven linear traits (body condition score, body stature, body length, heart girth, navel height, body depth and flank circumference) in Nguni cows using factor analysis and indicate the relationship between the extracted latent variables and calving interval (CI) and age at first calving (AFC). The traits were measured between Decem...
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Relationship between Conformation Traits and Lifetime Production Efficiency of Cows
Analysis was made of the relationship between conformation traits and lifetime production efficiency of the cows that first calved in 2000 and represented the active population in the Pomorze and Kujawy regions of Poland. The CORR Pearson procedures of SAS package were used in the statistical calculations. It was found that there is a statistically significant relationship, weak or low on the G...
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The objectives of this study were 1) to propose a profit function for Italian Chianina beef cattle; 2) to derive economic values for some biological variables in beef cows, specifically, production expressed as the number of calves born alive per year (NACY), age at the insemination that resulted in the birth of the first calf (FI), and length of productive life (LPL); and 3) to investigate the...
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ژورنال
عنوان ژورنال: Animal
سال: 2015
ISSN: 1751-7311
DOI: 10.1017/s1751731114003231