THE EFFECT OF MOISTURE CONTENT OF FORAGE STORED IN POLYVINYL SILOS ON INTAKE AND PERFORMANCE OF DAIRY COWS

Autor:	P. S. Haydon, V. S. Logan
Rok vydání:	1964
Předmět:	Butterfat Food Animals Fodder Chemistry Silage Hay Animal Science and Zoology Forage Composition (visual arts) Dry matter Food science Proximate
Zdroj:	Canadian Journal of Animal Science. 44:125-131
ISSN:	1918-1825 0008-3984
DOI:	10.4141/cjas64-020
Popis:	Legume–grass forage was ensiled two seasons in 25-ton polyvinyl-encased stacks at dry matter (D.M.) levels of 22 to 37% or stored as field-cured hay. The polyvinyl sleeve coverings provided initial gas-tight conditions. High losses occurred in the high D.M. (32 to 37%) silage during the feeding-out period. Silage quality, as indicated by volatile fatty acid ratios, proximate principles, and digestibility coefficients, was not significantly influenced by D.M. content. When cows were fed the lower D.M. (22 to 29%) silages and hay, forage intake was inversely related to its dry matter content. Intake of high D.M. silage appeared abnormally low. Milk yields appeared to be more consistently influenced by small variations in grain intake than forage dry matter intake through both trials. Milk yields from silages were greater than from hay per unit of D.M. intake. Moisture content of forage had no significant effect on milk composition as indicated by percentage of butterfat, solids-not-fat, or protein.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1c8265bdce11d98ad401f14e135be5dc https://doi.org/10.4141/cjas64-020 Zobrazit plný text záznamu