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Research
(Published online:
19-02-2015)
11.
Disposal rate in different age groups of Karan Fries
males in organized herd - Achun
Panmei, A. K. Gupta, P. R. Shivahre, M. Bhakat and K. Mahesh Singh
Veterinary World, 8(2): 192-196
doi:
10.14202/vetworld.2015.192-196
Achun Panmei:
Dairy Cattle Breeding Division, National Dairy Research Institute,
Karnal, India;
panmei.achun07@gmail.com
A.
K. Gupta:
Dairy Cattle Breeding Division, National Dairy Research Institute,
Karnal, India;
guptaak2009@gmail.com
P.
R. Shivahre:
Dairy Cattle Breeding Division, National Dairy Research Institute,
Karnal, India;
drpr06@gmail.com
M.
Bhakat:
Dairy Cattle Breeding Division, National Dairy Research Institute,
Karnal, India;
bhakat.mukesh@gmail.com
K.
Mahesh Singh: Dairy Cattle Breeding Division, National Dairy
Research Institute, Karnal, India;
maheshsngh7@gmail.com
Received: 22-10-2014, Revised: 06-01-2015, Accepted: 15-01-2015,
Published online: 19-02-2015
Corresponding author:
Achun Panmei, e-mail: panmei.achun07@gmail.com
Citation:
Panmei A, Gupta
AK, Shivahre PR, Bhakat M, Singh KM (2015) Disposal rate in
different age groups of Karan Fries males in organized
herd, Veterinary World 8(2):192-196
Abstract
Aim:
The present study was carried out to analyze the disposal rate
in different age groups of Karan Fries (KF) males in National
Dairy Research Institute herd.
Materials and Methods: Records on 1740 KF crossbred bulls born
during the period 1997-2012 were collected with an objective to
ascertain the effect of genetic and non-genetic (Period of birth
and season of birth) factors on the disposal pattern of KF males.
The percent of animals disposed from the herd due to mortality and
culling was calculated by proportion using descriptive statistics.
The data were subjected to Chi-square test to test the difference
due to different factors.
Results: Overall disposal rate for the different age groups of
0-1 m, 1-2 m, 2-3 m, 3-6 m, 6-18 m, 18 m-3 year and 3-5 year were
calculated as 17.9, 16.3, 14.2, 25.8, 49.0, 37.6 and 51.65%,
respectively. In the age groups, 3-6 m, 6-18 m and 3-5 year,
effect of periods of birth were found to be statistically
significant (p<0.01) for overall disposal rate. Across different
seasons of birth, overall disposal rates differed significantly
(p<0.01) in different age group except in 3-5 year age group.
Differences in overall disposal rate due to genetic group were
statistically significant (p<0.01) in 1-2 m, 2-3 m, 3-6 m, 6-18 m,
18-3 year and 3-5 year age groups.
Conclusion: Overview of the results indicated that higher
overall disposal rate in age group of 1 month was due to mortality
while, in the age groups of >1 month, culling was the primary
cause.
Keywords: culling, disposal, karan fries
male, mortality, organized herd.
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