Indian Journal of Animal Research

  • Chief EditorK.M.L. Pathak

  • Print ISSN 0367-6722

  • Online ISSN 0976-0555

  • NAAS Rating 6.50

  • SJR 0.263

  • Impact Factor 0.5 (2023)

Frequency :
Monthly (January, February, March, April, May, June, July, August, September, October, November and December)
Indexing Services :
Science Citation Index Expanded, BIOSIS Preview, ISI Citation Index, Biological Abstracts, Scopus, AGRICOLA, Google Scholar, CrossRef, CAB Abstracting Journals, Chemical Abstracts, Indian Science Abstracts, EBSCO Indexing Services, Index Copernicus
Submit

Indian Journal of Animal Research, volume 42 issue 2 (june 2008) : 136-138

EFFECT OF GENETIC AND NON-GENETIC FACTORS ON PRODUCTIVE HERD LIFE AND LONGEVITY IN A HERD OF SAHIWAL COWS

M. Abbas, G.K. Sachdeva
1Dairy Cattle Breeding Division, National Dairy Research Institute, Karnal - 132 001, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Abbas M., Sachdeva G.K. (2024). EFFECT OF GENETIC AND NON-GENETIC FACTORS ON PRODUCTIVE HERD LIFE AND LONGEVITY IN A HERD OF SAHIWAL COWS. Indian Journal of Animal Research. 42(2): 136-138. doi: .

ABSTRACT

The data on period of birth, age at first calving, 305 days milk yield and sire of cow were
considered as the factors affecting the productive herd life and longevity in Sahiwal herd at NDRI,
Karnal. The data were classified and analyzed by applying Least Squares Technique. The overall
mean for productive herd life (PHL) and longevity were recorded as 1418 ± 89.40, 2547.85 ± 89.43
days, respectively. No significant effect of period of birth of cow, age at first calving (AFC) and sire
of the cow was observed. However, 305 days first lactation milk yield (FLMY) affected highly
significantly the PHL and longevity. The heritability estimates were 0.17 ± 0.22 and 0.09 ± 0.20 for
PHL and longevity, respectively.

KEYWORDS

    REFERENCES

    1. Arun Kumar (1999). Ph.D. Thesis, CCS Haryana Agric. Univ., Hisar, India.
    2. Basu, S.B. et al. (1983). Indian J. Dairy Sci. 36: 207-210.
    3. Harvey, W. R. (1979). Least Squares Analysis of Data with Unequal Subclass Numbers. Agriculture Research Service.
    4. 20: 8. United States Department of Agriculture, Beltsville, Maryland, U. S. A.
    5. Matharu, R.S. and Gill, G.S. (1981). Indian J. Dairy Sci. 34: 16-20.
    6. Mukherjee, K. et al. (1999). Indian J. Anim. Res. 33 (2): 95-98.
    7. Rawal, S.C. and Tomar S.S. (1994). Indian J. Dairy Sci. 47: 455-458.
    8. Reddy, K.M. and Nagarcenkar, R. (1989). Indian J. Dairy Sci. 42: 636-637.
    9. Sahota, R.S. and Gill, G.S. (1990). Indian J. Dairy Sci. 43: 512-514.
    10. Singh, L. (2001). Ph.D. Thesis submitted to N.D.R.I., Karnal, India
    11. Singh, R.B. and Tomar, S.S. (1989). Indian J. Dairy Sci. 42: 431-432.
    Reviewed By

    Download Article
    In this Article
      Contact us
      Follow us

      Editorial Board

      View all (0)