Research-Article| Volume 55, ISSUE 6, P783-789, June 1972

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Effect of Forage-Concentrate Ratio in Complete Feeds Fed ad Libitum on Feed Intake Prepartum and the Occurrence of Abomasal Displacement in Dairy Cows1

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      Forty Holstein cows were assigned to four complete feeds of: a) 75:25; b) 60:40; c) 45:55; and d) 30:70 forage to concentrate ratios, 28 days before parturition, to examine the effect of ration energy level on the ad libitum consumption of energy in relation to requirements. During 25 days following parturition, 0, 2, 4, and 4 cases of left displacement of the abomasum occurred in the four ration groups, respectively.
      The mean daily dry matter intake 28 days prepartum did not differ significantly (P<.05) among treatment groups with all cows in the analysis or with only the cows without displacements. Regression analyses of dry matter intake on the 28 days prior to calving revealed a significant depression in intake as parturition approached by cows in Treatments 2, 3, and 4 but not by cows in Treatment 1.
      Digestible energy consumed during the 28 days before calving averaged 155, 138, 159, and 173% of National Research Council's maintenance requirements for the four treatment groups, respectively.


        • Cason J.L.
        • Davis E.F.
        • Hemken B.W.
        • Vandersall J.H.
        • Caskey C.D.
        Economical grain feeding for dairy cows.
        Univ. Maryland Ext. Bull. 1965; : 202
        • Emery E.
        • Hafs H.D.
        • Armstrong D.
        • Snyder W.W.
        Prepartum grain feeding effects on milk production, mammary edema, and incidence of diseases.
        J. Dairy Sci. 1969; 52: 345
      1. Flatt, W. P., P. W. Moe, and L. A. Moore. 1969 Influence of pregnancy and ration composition on energy utilization by dairy cows. European Ass. Animal Prod., Publ. 12, p. 123. Orrel Press Ltd.

        • Gardner E.W.
        Interactions of energy levels offered to Holstein cows prepartum and postpartum. I. Production responses and blood composition changes.
        J. Dairy Sci. 1969; 52: 1973
        • Hemken R.W.
        • Vandersall J.H.
        Intake levels during early lactation of the dairy cow.
        in: Proc. Maryland Nutrition Conf. 1965: 69
        • Huffman C.F.
        High-level grain feeding for dairy cows.
        J. Dairy Sci. 1961; 44: 2113
        • Johnson W.L.
        • Trimberger G.W.
        • Wright M.J.
        • Van Vleck L.D.
        • Henderson C.E.
        Voluntary intake of forage by Holstein cows as influenced by lactation, gestation, body weight and frequency of feeding.
        J. Dairy Sci. 1966; 49: 856
        • Jumah H.F.
        • Poulton B.E.
        • Apgar W.P.
        Energy and protein utilization during lactation.
        J. Dairy Sci. 1965; 48: 1210
        • Mather M.F.
        • Dedriek E.S.
        Displacement of the abomasum.
        Cornell Vet. 1966; 56: 323
        • Moe P.W.
        • Tyrrell H.F.
        • Flatt W.P.
        Energetics of body tissue mobilization.
        J. Dairy Sci. 1971; 54: 548
        • Morrison F.B.
        Feeds and Feeding.
        22nd Edition. The Morrison Publishing Co., Ithaca, New York1956
      2. National Academy of Sciences–National Research Council. 1971. Nutrient requirements of domestic animals. Nutrient requirements of dairy cattle. No. 3. Washington, D. C.

        • Neal P.A.
        Some critical observations on the etiology of displacement of the abomasum in the dairy cow.
        Nord. Vet. Med. 1964; 16: 361
        • Reid J.T.
        Problems of feed evaluation related to feeding of dairy cows.
        J. Dairy Sci. 1961; 44: 2122
        • Robertson J.McD.
        Left displacement of the bovine abomasum: epizootiologic factors.
        Amer. J. Vet. Res. 1968; 29: 421
        • Robertson J.M.
        • Boucher W.B.
        Treatment of left displacement of the bovine abomasum.
        J. Amer. Vet. Med. Ass. 1966; 149: 1423
        • Slack S.T.
        • Stone J.B.
        • Merrill W.G.
        Feeding the dairy cow for maximum returns.
        Cornell Ext. Bull. 1965; : 1156
      3. Smith, N.E. 1971. Feed efficiency in intensive milk production. U. Calif. 10th Ann. Dairy Cattle Day Rep., p. 40.

        • Svendsen Per.
        Etiology and pathogenesis of abomasal displacement in cattle.
        Nord. Vet. Med. 1969; 21 (Supplement I)
        • Svendsen Per.
        Abomasal displacement in cattle. The concentrations of volatile fatty acids in ruminal and abomasal contents and their influence on abomasal motility and the flow-rate of the abomasal contents.
        Nord. Vet. Med. 1970; 22: 571
        • Van Soest P.J.
        Development of a comprehensive system of feed analyses and its application to forages.
        J. Animal Sci. 1967; 26: 119
        • Whitlock E.H.
        Diseases of the abomasum associated with current feeding practices.
        J. Amer. Vet. Med. Ass. 1969; 154: 1203
        • Woelffer E.A.
        Stomachs out of order and out of place.
        Hoard's Dairyman. 1962; 107: 1262