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The effect of distillery by-products and molassed sugar beet feed on feed intake and milk production of dairy cows fed a maize silage based total mixed ration

  • R. H. Phipps (a1), A. K. Jones (a1) and J.G. Perrot (a2)

Extract

An earlier study conducted at the Centre for Dairy Research (Phipps et al. 1996) using a total mixed ration (TMR) based on maize silage, showed that when distillers grains wheat and molassed sugar beet feed (MSBF) replaced cereal and protein supplements, milk yield and dry matter (DM) intake were maintained but there was a large and significant reduction in milk fat and a small but significant reduction in milk protein. This depression in milk protein was attributed to the high oil content of distillers grains, which would have reduced fermentable metabolisable energy intake which in turn may have adversely affected microbial protein synthesis and reduced milk protein content. The aim of the current study was to devise a nutritional regime using distillers grains maize (DGM) and MSBF in a TMR which would allow milk fat content to be substantially reduced without compromising either DM intake, milk yield or milk protein content.

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Phipps, R. H., Jones, A.K., Perrot, J.G. and Waters, J. (1996). The effect of molassed sugar beet pulp and distillery by products on feed intake and milk production of dairy cows fed complete diets. British Society of Animal Science 62:622623.

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