Crystalline fat in rations of high-yielding dairy cows in early lactation. I. Effect on roughage intake, milk yield and milk composition

Burgstaller, G.; Klein, G.; Propstmeier, G.

Zuchtungskunde 60(5): 398-412

1988


ISSN/ISBN: 0044-5401
Accession: 001733842

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Abstract
10 German Simmental (GS) X Holstein-Friesian and 3 GS cows were given 7.5 or 10.0% crystalline fat (i.e. animal fat that was treated by a patented "cold-air-spray-crystallisation" process) or were unsupplemented controls. Supplementation did not significantly affect the digestibility of nutrients. Daily fat intake of supplemented cows was 860 and 1000 g for the 2 treatment groups resp., compared with 430 and 490 g for controls. Daily feed intake for supplemented cows was 0.75 and 0.90 kg DM resp. higher than in controls (P<0.05). Supplementation did not significantly affect milk yield or composition.