Relationship Among Hemoglobin Types with Some Productive Traits in Holstein Cows
DOI:
https://doi.org/10.59658/jkas.v3i1.527Abstract
This study is conducted in Dairy Cattle Farm and the Physiology Laboratory, College of Agriculture, Department of Animals Resources, Abu-Ghraib and also in a Laboratory dealing with the analysis of genetic for the period 1/11/2013 to 7/11/2014. The objective of this study is to identify the hemoglobin type and the relationship among these types with some growth and production of 54 Holstein cows and 39 progeny. The percentage of types of Hemoglobin distribution in a sample of Holstein cows in this study is 62.96, 27.78 and 9.26 % for the types AA, AB and BB respectively and the differences are highly significant. The highest average milk yield and lactation period is in the type BB as compared with the type AA and AB. The percentage of milk components is significantly influenced (P<0.05) or (P<0.01) by the Hemoglobin types except the percentage of ash in the milk. There are a significant differences (P<0.05) in the weight at birth with the Hemoglobin types, while the other body measurements are not influenced at this age. There are a significant differences (P<0.05) in body weight and body length at weaning due to the differences in Hemoglobin types and also the gain weight among difference ages is influenced by different Hemoglobin in types in their dams.it can concluded that Hemoglobin type can be use of as a markers to put the method of genetically improvement strategies for the cattle to increase the economical income from these cattle farms by selection and type crossing which give a good performance.
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