scholarly journals Evaluation and estimation of genetic parameters for herd life in dairy cattle

2008 ◽  
Vol 36 (2) ◽  
pp. 123-136
Author(s):  
Osamu SASAKI
Keyword(s):  
Dairy Cattle ◽  
Genetic Parameters ◽  
Estimation Of Genetic Parameters

scholarly journals Estimation of genetic parameters using a random regression monthly test-day model in an Ethiopian dairy cattle population

2016 ◽  
Vol 50 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Gebregziabher Gebreyohannes ◽  
Skorn Koonawootrittriron ◽  
Mauricio A. Elzo ◽  
Thanathip Suwanasopee
Keyword(s):  
Dairy Cattle ◽  
Genetic Parameters ◽  
Random Regression ◽  
Cattle Population ◽  
Estimation Of Genetic Parameters

scholarly journals Estimation of genetic parameters and heterosis for longevity in crossbred Danish dairy cattle

2017 ◽  
Vol 100 (8) ◽  
pp. 6337-6342 ◽  
Author(s):  
J.B. Clasen ◽  
E. Norberg ◽  
P. Madsen ◽  
J. Pedersen ◽  
M. Kargo
Keyword(s):  
Dairy Cattle ◽  
Genetic Parameters ◽  
Danish Dairy ◽  
Estimation Of Genetic Parameters

scholarly journals Estimation of Genetic Parameters for Persistency of Lactation in Sahiwal Dairy Cattle

2017 ◽  
Vol 49 (3) ◽  
pp. 877-882 ◽  
Author(s):  
Ali Zurwan ◽  
Muhammad Moaeen-ud-Din ◽  
Ghulam Bilal ◽  
Zia-ur-Rehman Zia-ur-Rehman ◽  
Muhammad Sajjad Khan
Keyword(s):  
Dairy Cattle ◽  
Genetic Parameters ◽  
Estimation Of Genetic Parameters

scholarly journals Schätzung genetischer Parameter an einem Datenmaterial der Sächsischen Rinderpopulation

2001 ◽  
Vol 44 (6) ◽  
pp. 589-598
Author(s):  
A. Michaiolowskaja ◽  
N. Mielenz ◽  
L. Schüler ◽  
U. Bergfeld ◽  
U. Müller
Keyword(s):  
Dairy Cattle ◽  
Protein Content ◽  
Population Genetic ◽  
Genetic Parameters ◽  
Genetic Correlations ◽  
Fat Content ◽  
Cattle Population ◽  
Population Genetic Parameters ◽  
Estimation Of Genetic Parameters ◽  
Genetic Trends

Abstract. Title of the paper: Estimation of genetic parameters in the dairy cattle population of Saxonia Population-genetic parameters of the dairy cattle population of Saxonia have been examined. The estimated heritabilities for milk quantity range between 0.35 and 0.42, for fat content between 0.48 and 0.55 and for protein content between 0.52 and 0.57. Higher heritabilities were found for 1st than for subsequent lactations. The genetic correlations between milk quantity and the fat and protein contents were significantly negative for all lactations, likewise between protein content and the protein quantity. The correlation between fat content and fat quantity has been slightly positive (rg=0.08). The analysis of genetic trends revealed a substantial increase in quantity traits, whereas a negative trend has been observed for the milk content merits.

scholarly journals Estimation of Genetic Parameters for Milk Fat Depression in Dairy Cattle

2005 ◽  
Vol 88 (3) ◽  
pp. 1166-1177 ◽  
Author(s):  
M.P.L. Calus ◽  
M.J. Carrick ◽  
R.F. Veerkamp ◽  
M.E. Goddard
Keyword(s):  
Dairy Cattle ◽  
Milk Fat ◽  
Genetic Parameters ◽  
Milk Fat Depression ◽  
Estimation Of Genetic Parameters
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