Section 6
Chapter 5,499

Further studies on the effect of fat supplementation of concentrates fed to lactating dairy cows 1. effect on feed intake feed intake pattern and milk production and composition

De-Visser, H.; Tamminga, S.; Van-Gils, L.G.M.

Netherlands Journal of Agricultural Science 30(4): 347-352


ISSN/ISBN: 0028-2928
Accession: 005498691

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A feeding trial was carried out as a 3 .times. 3 Latin square with 9 cows which were fed long hay and concentrates without supplemented fat (treatment CO), with 12% supplemented fat (treatment C12) or with 12% supplemented fat adsorbed on a carrier of vermiculite (treatment C12C). Supplementing the concentrates with fat resulted in a higher milk yield. With both fat-supplemented concentrates the milk fat content was initially increased, but this was rapidly followed by a rather sharp decrease. The final result was a lower milk fat content with treatment C12 and a slightly higher milk fat content with treatment C12C. Protein content of the milk was decreased with both treatments C12 and C12C. With feeding fat-supplemented concentrates feed intake pattern changed in that the rate of intake decreased and the concentrates were eaten in several small quantities.

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