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Current IssueEditorial BoardOnline First ArticlesArchive

volume 43 issue 1 (march 2009) : 12-16

LACTATION TREND OF MILK SOLID-NOT-FAT IN TWO-BREED CROSSES OF CATTLE AT AN ORGANIZED FARM

C
C.L. Suman
1Agricultural Research Information System Cell, Computer Centre, Indian Veterinary Research Institute, Izatnagar-243122 (India)

  • Submitted|

  • First Online |

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Cite article:- Suman C.L. (2025). LACTATION TREND OF MILK SOLID-NOT-FAT IN TWO-BREED CROSSES OF CATTLE AT AN ORGANIZED FARM. Indian Journal of Animal Research. 43(1): 12-16. doi: .

ABSTRACT

The milk solid-not-fat (SNF) averaged to 8.54±0.01, 8.50±0.01 and 8.65±0.02 per cent respectively
in Holstein Friesian x Hariana (FH), Brown Swiss x Hariana (BH) and Jersey x Hariana (JH) crosses
of cattle and showed significant (P0.01) effect of month of lactationand season of calving. The
observed trend revealed that milk SNF decreased successively after calving to its lowest levels during
fifth month and increased thereafter at subsequent months of lactation in two-breed crosses of cattle.
The gamma type function in FH and JH groups and quadratic function in BH group were adjudged
as best representative nonlinear models explaining lactation trend of milk SNF in two-breed crosses
of cattle. The fitted models to least squares means at ten monthly points of lactation described the
decreasing trend of milk SNF after calving to lowest levels of 8.40, 8.34 and 8.52 percent at 4.36, 5.78
and 4.89 months of lactation in FH, BH and JH groups respectively and increasing trend thereafter
during the lactation in close agreement to its observed trend in two-breed crosses of cattle

REFERENCES

  1. Dubey, P.C. et al. (1997). Indian J. Anim. Sci., 67(9):802-804.
  2. Duncan, D.B. (1955). Biometrics, 11:1-42.
  3. Harvey, W.R. (1966). Least Squares Analysis of Data with Unequal Sub-class Number. United States Department of Agriculture, Agricultural Research Service, Washington, DC.
  4. Nelder, J.A. (1966). Biometrics, 22:128-141.
  5. Prasad, S. and Singh, Ramkaran (2001). Indian Vet. Med. J., 25:133-136.
  6. Sikka, L.C. (1950). J. Dairy Res., 17:231-252.
  7. Snedecor, G.W. and Cochran, W.G. (1967). Statistical Methods, 6 th edition Oxford and IBH Pub Co Calcutta.
  8. Suman, C.L. et al. (2003). Indian Vet. Med. J., 27:307-310.
  9. Wood, P.D.P. (1976). Animal Prod., 22:35-40.
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    volume 43 issue 1 (march 2009) : 12-16

    LACTATION TREND OF MILK SOLID-NOT-FAT IN TWO-BREED CROSSES OF CATTLE AT AN ORGANIZED FARM

    C
    C.L. Suman
    1Agricultural Research Information System Cell, Computer Centre, Indian Veterinary Research Institute, Izatnagar-243122 (India)

    • Submitted|

    • First Online |

    • doi

    Cite article:- Suman C.L. (2025). LACTATION TREND OF MILK SOLID-NOT-FAT IN TWO-BREED CROSSES OF CATTLE AT AN ORGANIZED FARM. Indian Journal of Animal Research. 43(1): 12-16. doi: .

    ABSTRACT

    The milk solid-not-fat (SNF) averaged to 8.54±0.01, 8.50±0.01 and 8.65±0.02 per cent respectively
    in Holstein Friesian x Hariana (FH), Brown Swiss x Hariana (BH) and Jersey x Hariana (JH) crosses
    of cattle and showed significant (P0.01) effect of month of lactationand season of calving. The
    observed trend revealed that milk SNF decreased successively after calving to its lowest levels during
    fifth month and increased thereafter at subsequent months of lactation in two-breed crosses of cattle.
    The gamma type function in FH and JH groups and quadratic function in BH group were adjudged
    as best representative nonlinear models explaining lactation trend of milk SNF in two-breed crosses
    of cattle. The fitted models to least squares means at ten monthly points of lactation described the
    decreasing trend of milk SNF after calving to lowest levels of 8.40, 8.34 and 8.52 percent at 4.36, 5.78
    and 4.89 months of lactation in FH, BH and JH groups respectively and increasing trend thereafter
    during the lactation in close agreement to its observed trend in two-breed crosses of cattle

    REFERENCES

    1. Dubey, P.C. et al. (1997). Indian J. Anim. Sci., 67(9):802-804.
    2. Duncan, D.B. (1955). Biometrics, 11:1-42.
    3. Harvey, W.R. (1966). Least Squares Analysis of Data with Unequal Sub-class Number. United States Department of Agriculture, Agricultural Research Service, Washington, DC.
    4. Nelder, J.A. (1966). Biometrics, 22:128-141.
    5. Prasad, S. and Singh, Ramkaran (2001). Indian Vet. Med. J., 25:133-136.
    6. Sikka, L.C. (1950). J. Dairy Res., 17:231-252.
    7. Snedecor, G.W. and Cochran, W.G. (1967). Statistical Methods, 6 th edition Oxford and IBH Pub Co Calcutta.
    8. Suman, C.L. et al. (2003). Indian Vet. Med. J., 27:307-310.
    9. Wood, P.D.P. (1976). Animal Prod., 22:35-40.
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