Effects of grass hay proportion in a corn silage-based diet on rumen digesta kinetics and digestibility in dairy cows

Autor:	Seiji Kondo, Koichiro Ueda, Kyaw San Win
Rok vydání:	2015
Předmět:	animal structures Silage Chemistry Kinetics food and beverages General Medicine Neutral Detergent Fiber Rumen Animal science Agronomy Latin square Hay Dry matter General Agricultural and Biological Sciences Feces
Zdroj:	Animal Science Journal.
ISSN:	1344-3941
DOI:	10.1111/asj.12365
Popis:	In this study, we aimed to evaluate the effects of six levels of orchardgrass hay (GH) proportion (0%, 10%, 20%, 30%, 40% or 50% of dry matter) in finely chopped corn silage (CS)-based diets on digesta kinetics of CS and GH in the rumen. Six non-lactating, rumen-cannulated Holstein cows were used in a 6 × 6 Latin square design. Ruminal digesta kinetics was measured by ruminal dosing of feed particle markers (dysprosium for CS, erbium for GH) followed by fecal sampling. The increase of GH proportion had a quadratic effect (P
Databáze:	OpenAIRE
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