Banner
Current IssueEditorial BoardOnline First ArticlesArchive
Current IssueEditorial BoardOnline First ArticlesArchive

volume 39 issue 2 (july to december 2005) : 115 - 118

FACTORS AFFECTING HRST LACTATION MILK YIELD TRAITS IN JERSEY COWS

Y
Y.P. Thakur!
B
B.P. Singh2
1College of Veterinary and Animal Sciences, CSK, HP Krishi Vishvavidyalaya, Palampur - 176062, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Thakur! Y.P., Singh2 B.P. (2025). FACTORS AFFECTING HRST LACTATION MILK YIELD TRAITS IN JERSEY COWS. Indian Journal of Animal Research. 39(2): 115 - 118. doi: .

ABSTRACT

First lactation milk production records on 1172 Jersey cows maintained from 1974 to 1995 at
4 institutional cattle breeding farms in sub-temperate mid-hill region of Himachal Pradesh were
analyzed to study to effect of various non-genetic factors viz.: farm, year and season of calving on
part and complete first lactation milk production traits. The traits included part lactation milk yield
upto 90, 150 and 305 days, first lactation milk yield, lactation length (LL) and dry period (DP). The
sire-effect was highly significant for all the traits under study. All the non-genetic effects considered in the study, significantly affected the milk production traits along with significant linear regression of traits on age at first calving. The LL and DP were Significantly influenced by the farm effect only. The quadratic regressions of all the traits studied on age at first calving were observed to be nonsignificant in the present study except DP which was highly significant.

KEYWORDS

    REFERENCES

    1. Arora. D.N. and Sharma J.S. (1983). Indian Vet. J., 60: 992-95.
    2. Gogoi. D.N. et al. (1993). Indian J. Anim. Sci.. 63: 569-572.
    3. Harvey. WR. (1990). Users guide for LSMLMW and MIXMDL package PC-2 version. Mimeograph, Ohio State University. Columbus, Ohio. USA.
    4. Jain et al. (1993). Indian J. Dairy Sci., 46: 182-84.
    5. Katoch. S. (1988). Ph. D Thesis, Agra University, Agra Ondia).
    6. Kiwuwa. G.H.(1974). East Africa Agric. For. J., 39: ~89-297.
    7. Murdia, CK and Tripathi, V.N. (1991). Indian Vet. J., 68: 1139-1142.
    8. Murdia, CK and Tripathi, V.N. (1992). Indian J. Anim. Sci., 62: 177-180.
    9. Palia, SK and Arora. c.L. (1983). Indian J. Anim. Sci., 53: 642-644.
    10. Rege. J.E.O. et al. (1994). Animal Producion, 59: 21-29.
    11. Sadana, DK (1984). Ph. D Thesis, Kurukshetra University. Haryana, (India).
    12. Sadana. DK and Basu, S.B. (1981). Indian J. Dairy Sci., 34: 443-447.
    13. Sadana. DK and Tripathi, V.N. (1986). In: Proc. 3rd World Congress on Genetics Applied to Livestock Production. July. 16-22, 1986, Lincoln, USA.
    14. Snedecor, G.W and Cochran, WG. (1967). Statistical Methods. 6th Edition, Oxford and IBH Publishing Co., New York, USA
    Published In
    Indian Journal of Animal Research
    Article Metrics
    Metrics Icon
    0
    Views
    0
    Citations
    Reviewed By
    Share Article
    Download Article
    In this Article
      Contact us
      Follow us

      volume 39 issue 2 (july to december 2005) : 115 - 118

      FACTORS AFFECTING HRST LACTATION MILK YIELD TRAITS IN JERSEY COWS

      Y
      Y.P. Thakur!
      B
      B.P. Singh2
      1College of Veterinary and Animal Sciences, CSK, HP Krishi Vishvavidyalaya, Palampur - 176062, India

      • Submitted|

      • First Online |

      • doi

      Cite article:- Thakur! Y.P., Singh2 B.P. (2025). FACTORS AFFECTING HRST LACTATION MILK YIELD TRAITS IN JERSEY COWS. Indian Journal of Animal Research. 39(2): 115 - 118. doi: .

      ABSTRACT

      First lactation milk production records on 1172 Jersey cows maintained from 1974 to 1995 at
      4 institutional cattle breeding farms in sub-temperate mid-hill region of Himachal Pradesh were
      analyzed to study to effect of various non-genetic factors viz.: farm, year and season of calving on
      part and complete first lactation milk production traits. The traits included part lactation milk yield
      upto 90, 150 and 305 days, first lactation milk yield, lactation length (LL) and dry period (DP). The
      sire-effect was highly significant for all the traits under study. All the non-genetic effects considered in the study, significantly affected the milk production traits along with significant linear regression of traits on age at first calving. The LL and DP were Significantly influenced by the farm effect only. The quadratic regressions of all the traits studied on age at first calving were observed to be nonsignificant in the present study except DP which was highly significant.

      KEYWORDS

        REFERENCES

        1. Arora. D.N. and Sharma J.S. (1983). Indian Vet. J., 60: 992-95.
        2. Gogoi. D.N. et al. (1993). Indian J. Anim. Sci.. 63: 569-572.
        3. Harvey. WR. (1990). Users guide for LSMLMW and MIXMDL package PC-2 version. Mimeograph, Ohio State University. Columbus, Ohio. USA.
        4. Jain et al. (1993). Indian J. Dairy Sci., 46: 182-84.
        5. Katoch. S. (1988). Ph. D Thesis, Agra University, Agra Ondia).
        6. Kiwuwa. G.H.(1974). East Africa Agric. For. J., 39: ~89-297.
        7. Murdia, CK and Tripathi, V.N. (1991). Indian Vet. J., 68: 1139-1142.
        8. Murdia, CK and Tripathi, V.N. (1992). Indian J. Anim. Sci., 62: 177-180.
        9. Palia, SK and Arora. c.L. (1983). Indian J. Anim. Sci., 53: 642-644.
        10. Rege. J.E.O. et al. (1994). Animal Producion, 59: 21-29.
        11. Sadana, DK (1984). Ph. D Thesis, Kurukshetra University. Haryana, (India).
        12. Sadana. DK and Basu, S.B. (1981). Indian J. Dairy Sci., 34: 443-447.
        13. Sadana. DK and Tripathi, V.N. (1986). In: Proc. 3rd World Congress on Genetics Applied to Livestock Production. July. 16-22, 1986, Lincoln, USA.
        14. Snedecor, G.W and Cochran, WG. (1967). Statistical Methods. 6th Edition, Oxford and IBH Publishing Co., New York, USA
        In this Article
          Contact us
          Follow us
          Published In
          Indian Journal of Animal Research

          Editorial Board

          View all (0)