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Analysis of Frieswal cattle for survival pattern, herd structure and expected herd life

Indian Agricultural Research Journals

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Title Analysis of Frieswal cattle for survival pattern, herd structure and expected herd life
 
Creator KUMAR, ARUN
SINGH, UMESH
KUMAR, SUSHIL
BENIWAL, B K
 
Subject Cattle, Disposal, Expected life, Frieswal, Reproductive rate, Survival rate
 
Description Records of 1 024 Frieswal cows maintained at Military Dairy Farm, Meerut, during 1987–2007 were used to studythe lactation specific survival pattern, herd structure, expected herd life and overall life time statistics. Study revealedthat 76% of the total cows at first lactation were survived for next lactation and vis-à-vis 24% cows left the herd aftercompletion of first lactation. The probability of a cow to survive in the herd decreased along with the lactation number.Herd structure showed that about 37% of the herd comprised first calvers and about 80% of the total females present inthe herd belonged to first 3 lactations only. The expected herd life at first lactation was 2.05 lactations more and followsa decreasing trend along with the increase in lactation. Average net reproductive rate was 0.86, which indicated thateach cow produced less than one female calf. It was observed that the proportion of cows being lost from the herd was0.24 in first lactation. This is the equilibrium replacement rate required to maintain the herd size.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor —
 
Date 2013-02-12
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
—
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/27268
 
Source The Indian Journal of Animal Sciences; Vol 83, No 2 (2013)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/27268/12407
 
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