𝔖 Bobbio Scriptorium
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Fatty Rapeseed Products for Dairy Cows

✍ Scribed by Frank, B.

Publisher
John Wiley and Sons
Year
1981
Weight
440 KB
Volume
83
Category
Article
ISSN
0931-5985

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✦ Synopsis

Abstract

In the present investigation (3 experiments) the effects of fatty rapeseed products were studied on both straw‐based and hay‐based rations for lactating cows. Compared rapeseed products, used as ingredients of concentrate mixtures, were full‐fat rapeseed (43% oil), partially defatted rapeseed expellercake (19% oil) and fully defatted rapeseed meal (2% oil). The rapeseed and rapeseed expellercake compared to the defatted rapeseed meal resulted in significantly higher yields of milk and 4% fat‐corrected milk, when barley straw was the dominating roughage. In the hay‐based diet the positive effects of added fat were not as much expressed. The iodine number of the milk fat increased about 4 units, when feeding the high‐fat rations, i.e. the softness of the butter was improved. The results indicate that supplementation of straw with fatty rapeseed products will improve the possibility of a biologically and economically beneficial use of cereal straw in dairy cow rations.

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