Estimation of Genetic Parameters for the Litter Size and Birth Weight in Korean Black Goats

2015 ◽  
Vol 26 (1) ◽  
pp. 1-5
Author(s):  
Myung-Jick Kim ◽  
◽  
Sang-Woo Kim ◽  
Jae-Hwan Kim ◽  
Mi-Jung Byeon ◽  
...  
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Genetic Parameters ◽  
Estimation Of Genetic Parameters

Genetic analyses of piglet survival and individual birth weight on first generation data of a selection experiment for piglet survival under outdoor conditions

2007 ◽  
Vol 2007 ◽  
pp. 65-65
Author(s):  
R. Roehe ◽  
N. P. Shrestha ◽  
W. Mekkawy ◽  
P. W. Knap ◽  
K. M. Smurthwaite ◽  
...  
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Genetic Improvement ◽  
First Generation ◽  
Genetic Parameters ◽  
Selection Experiment ◽  
Postnatal Mortality ◽  
Breeding Programmes ◽  
Potential Benefits ◽  
Piglet Survival

Peri- and postnatal mortality of piglets is reported to be around 20% and genetic improvement in piglet survival has great potential benefits in terms of animal welfare, economics and the environment. The indication of an unfavourable genetic correlation between litter size and survival in particular points to the importance of including piglet survival in those pig breeding programmes that currently only aim to increase litter size. Phenotypically, individual birth weight is closely associated with piglet survival (Roehe and Kalm, 2000). Genetic parameters for piglet survival traits and individual birth weight therefore need to be estimated in order to genetically improve piglet survival efficiency

Estimation of genetic parameters for litter size in Charollais, Romney, Merinolandschaf, Romanov, Suffolk, Šumava and Texel breeds of sheep

2014 ◽  
Vol 119 (1-3) ◽  
pp. 33-38 ◽  
Author(s):  
Jitka Schmidová ◽  
Michal Milerski ◽  
Alena Svitaková ◽  
Luboš Vostrý ◽  
Alexandra Novotná
Keyword(s):  
Litter Size ◽  
Genetic Parameters ◽  
Estimation Of Genetic Parameters

scholarly journals Estimation of genetic parameters for birth weight, preweaning mortality, and hot carcass weight of crossbred pigs1

2013 ◽  
Vol 91 (12) ◽  
pp. 5565-5571 ◽  
Author(s):  
M. Dufrasne ◽  
I. Misztal ◽  
S. Tsuruta ◽  
J. Holl ◽  
K. A. Gray ◽  
...  
Keyword(s):  
Birth Weight ◽  
Genetic Parameters ◽  
Carcass Weight ◽  
Estimation Of Genetic Parameters

scholarly journals Estimation of genetic parameters and prediction of breeding values for some economic traits of Black Bengal Goat under farming condition

2020 ◽  
Vol 20 (1-2) ◽  
pp. 8-17
Author(s):  
MA Jalil ◽  
S Akther ◽  
MP Choudhury ◽  
MA Habib
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Milk Yield ◽  
Genetic Parameters ◽  
Breeding Values ◽  
Lactation Length ◽  
Total Milk ◽  
Daily Milk Yield ◽  
Black Bengal Goat ◽  
Daily Milk

The study was undertaken to evaluate the genetic progress of Black Bengal Goat (BBG) by estimating genetic parameters viz. heritability and breeding values for economically important productive and reproductive traits (birth weight, weight at 3, 6, 9 & 12 months, daily milk yield, lactation length, total milk yield and litter size of BBG goat population). Variance and co-variance components were analyzed applying Residual Maximum Likelihood (REML) approach by VCE 4.2.5 computer package. The heritability (h2) of birth weight was estimated as 0.2, which was low. The heritability estimates for 3-month weight (0.40), 6-month weight (0.50), 9-month weight (0.37) and 12-month weight (0.36) were found medium. Estimated h2 of daily milk yield, total milk yield and lactation length in this study were from 0.55 to 0.82.  h2 of litter size was 0.09. The maximum estimated breeding value (EBV) was found for 6 month body weight (12.94 kg), however, for daily milk yield, the value was 1.513 kg. The results found in this study revealed that genetic improvement of BBG for most of the traits is possible by selection and breeding. Bangladesh J. of Livestock Res. 20(1-2): 8-17, Jan-Dec 2013

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