scholarly journals Estimation of Genetic Parameters Using an Animal Model for Traits in Performance and Progeny Testing for Meat Production of Japanese Black Cattle Herd in Miyagi Prefecture

2001 ◽  
Vol 72 (2) ◽  
pp. 89-96
Author(s):  
Hiroshi UCHIDA ◽  
Takuro OIKAWA ◽  
Keiichi SUZUKI ◽  
Toshihiro YAMAGISHI
Keyword(s):  
Animal Model ◽  
Genetic Parameters ◽  
Cattle Herd ◽  
Meat Production ◽  
Progeny Testing ◽  
Japanese Black Cattle ◽  
Miyagi Prefecture ◽  
Estimation Of Genetic Parameters

Estimation of genetic parameters for growth traits of Japanese flounder Paralichthys olivaceus using an animal model

2010 ◽  
Vol 77 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Yong-Xin Liu ◽  
Gui-Xing Wang ◽  
Yu-Fen Wang ◽  
Fei Si ◽  
Zhao-Hui Sun ◽  
...  
Keyword(s):  
Animal Model ◽  
Genetic Parameters ◽  
Growth Traits ◽  
Paralichthys Olivaceus ◽  
Japanese Flounder ◽  
Estimation Of Genetic Parameters

scholarly journals Estimation of Genetic Parameters for Muscle Area, Subcutaneous Fat of Carcass Cross section in Japanese Black Cattle

2004 ◽  
Vol 75 (4) ◽  
pp. 521-526 ◽  
Author(s):  
Takefumi OOSAWA ◽  
Mio HASEGAWA ◽  
Keigo KUCHIDA ◽  
Satoshi HIDAKA ◽  
Mitsuo SEKIKAWA ◽  
...  
Keyword(s):  
Cross Section ◽  
Genetic Parameters ◽  
Subcutaneous Fat ◽  
Japanese Black Cattle ◽  
Muscle Area ◽  
Estimation Of Genetic Parameters

Estimation of genetic parameters for temperament and ease of milking assessed on a linear scale in friesian holstein heifers

1991 ◽  
Vol 1991 ◽  
pp. 167-167
Author(s):  
H J Bellamy ◽  
G J T Swanson
Keyword(s):  
Artificial Insemination ◽  
Genetic Parameters ◽  
Assessment Method ◽  
Progeny Testing ◽  
Linear Scale ◽  
Testing Scheme ◽  
Milk Marketing ◽  
Estimation Of Genetic Parameters

Following the introduction of the linear assessment method of evaluating conformation within the Dairy Progeny Testing Scheme run by the Artificial Insemination Organisation (now Genus) of the Milk Marketing Board in 1983 three new traits were included in 1985 and 1986. The new traits were Temperament, Ease of Milking and Fore Udder Angle. In addition information was collected on the number of hours since milked when the classification was carried out.The objective of this study was to establish whether the variation in linear scores was significantly affected by the number of hours since milked and also to estimate the phenotypic and genetic parameters for the new trails, in particular Temperament and Ease of Milking.

scholarly journals Estimation of genetic parameters for superovulatory response traits in Japanese Black cows

2021 ◽  
Author(s):  
A Zoda ◽  
M Urakawa ◽  
Y Oono ◽  
S Ogawa ◽  
M Satoh
Keyword(s):  
Genetic Improvement ◽  
Genetic Parameters ◽  
Genetic Correlations ◽  
Rank Correlation ◽  
Japanese Black Cattle ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Estimation Of Genetic Parameters ◽  
Response Traits ◽  
Donor Cows

Abstract The aim of this study was to estimate genetic parameters for superovulatory response traits in order to explore the possibility of genetic improvement in Japanese Black cows. 19 155 records of the total number of embryos and oocytes (TNE) and the number of good embryos (NGE) collected from 1532 donor cows between 2008 and 2018 were analyzed. A two-trait repeatability animal model analysis was performed for both. Because records of TNE and NGE did not follow a normal distribution, the records were analyzed following no, logarithmic, or Anscombe transformation. Without transformation, the heritability estimates were 0.26 for TNE and 0.17 for NGE. With logarithmic transformation, they were 0.22 for TNE and 0.18 for NGE. With Anscombe transformation, they were 0.26 for TNE and 0.18 for NGE. All analyses gave similar genetic correlations between TNE and NGE, ranging from 0.60 to 0.71. Spearman’s rank correlation coefficient between breeding values of cows with more than 10 records was ≥0.95 with both transformations. Thus, the genetic improvement of TNE and NGE of donor cows could be possible in Japanese Black cattle.

Estimation of genetic parameters for stillbirth of Japanese Black cattle in Kagoshima

2021 ◽  
Vol 92 (3) ◽  
pp. 285-291
Author(s):  
Hidemi OYAMA ◽  
Kiyoto IMAMURA ◽  
Shinichi SAKAMOTO ◽  
Kazutaka NISHI ◽  
Kotaro KAWABE ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Japanese Black Cattle ◽  
Estimation Of Genetic Parameters
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