Protein nutrition of dairy cows receiving grass silage diets. The effects of post-ruminal supplements of proteins and amino acids
β Scribed by Jai-Jun Choung; David G. Chamberlain
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 505 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0022-5142
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Two silages were prepared from the Γrst-cut sward of timothy-meadow fescue and wilted to a dry matter (DM) content of 300 g kg~1. One was ensiled with the addition of a formic-acid-based additive (4 litres formic acid (FA) per tonne) and the other with the addition of a bacterial inoculant (LAB) at
Four cows were used in a 4 ] 4 Latin square design with a 2 ] 2 factorial arrangement of treatments to examine the e β ects of the extent of silage fermentation and post-ruminal casein infusion on the arterial concentrations and mammary arterialΓvenous (AΓV) di β erence of energy-yielding nutrients an
Four cows were used in a balanced 4 ] 4 Latin square with 2 week experimental periods to investigate the e β ects of intraruminal infusions of volatile fatty acids and protein source on milk production and blood metabolites. The four treatments in a 2 ] 2 factorial arrangement were isoenergetic intra