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 0.4 (2024)

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 35 issue 2 (july to december 2001) : 150 - 152

EFFECT OF AGE AT FIRST CALVING ON SOME ECONOMIC TRAITS OF HOLSTEIN FRIESIAN x DEONI HALFBREDS

B.M. Thombre, K.R. Mitkari*, M.F. Siddiqui, G.R. PatH
1Department of Animal Husbandry and Dairying Marathwada Agricultural University, Parbhani - 431 402, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Thombre B.M., Mitkari* K.R., Siddiqui M.F., PatH G.R. (2024). EFFECT OF AGE AT FIRST CALVING ON SOME ECONOMIC TRAITS OF HOLSTEIN FRIESIAN x DEONI HALFBREDS. Indian Journal of Animal Research. 35(2): 150 - 152. doi: .

ABSTRACT

During the study the data were collected from 195 Holstein Friesian × Deoni halfbreds (F1) progeny over a period of 21 years (1974–1994). From the 195 halfbred females 639 lactations were considered for evaluation. The data generated was divided into seven groups from G1 to G7 on the basis of age at first calving (AFC), along with the corresponding groupwise distribution for milk yield (MY), service period (SP) and intercalving period (ICP) for analysis. Further the effect of AFC on MY, SP and ICP were studied. The overall least squares means (LSM) for the MY, SP and ICP in Holstein Friesian × Deoni halfbreds were reported as 1585.835±24.460 kg, 162.315±5.555 days and 443.776±5.651 days, respectively. The effect of AFC on MY, SP and ICP was found to be highly significant. The higher AFC in Holstein Friesian × Deoni halfbreds lowered down the milk production considerably, whereas increased the SP and ICP upto certain extent

KEYWORDS

    REFERENCES

    1. Biswa, J.e. et ai. (1982). Indian J. Anim. Sci. 52:123.
    2. Chaudhari, S. and Chaudhary, A.L. (1977). IndianJ. Aniim. Sci. 47 (2):773.
    3. Chawla, D.S. and Mishra, R.R. (1979l.lndianJ. Dairy Sci. 32:297.
    4. Dalal, D.S. eta!. (1991l.lndianJ. Dairy Sci. 44:401.
    5. Harvey, w.R. (1976). Least Square Analysis of Data with unequal subclass number Agricultural Research Service,
    6. United States, Department of Agriculture, Washington, D.e.
    7. Kramer, e.Y. (1957). Biometrics 13: 13.
    8. Pandey, H.N. eta!. (1983).lndianJ. Anim. Sci. 53:307.
    9. PatH, C.Y. (1983). M.Sc. Thesis, M.A.U., Parbhani.
    10. Siddiqui, M.F. (1984). PhD. Thesis, M.A.U. Parbhani.
    11. Singh Mohinder G. and Singh Gulzara, S. (1996). Indian J. Dairy Sci. 19:128.
    12. Taneja, V.K. and Sikka, A.K. (1981). Indian J. Dairy Sci. 34(3): 191.
    13. Thombre, B.M. (1991). M.Sc. Thesis, MAU. Parbhani.
    14. Yadav, A.S. and Rathi, S.S. (1992). Indian J. Dairy Sci. 45:511.
    15. Yadav, A.S. et al. (1992). Indian J. Dairy Sci. 45:522.
    Reviewed By

    Download Article
    In this Article
      Contact us
      Follow us

      Editorial Board

      View all (0)