Baker's yeast effluent as a liquid feed for dairy cows and heifers.
J Dairy Sci
; 78(2): 397-403, 1995 Feb.
Article
em En
| MEDLINE
| ID: mdl-7745160
ABSTRACT
Liquid effluent from baker's yeast production was fed to dairy cows to determine whether effluent is an acceptable feed and whether it affects milk yield or composition. Effluent averaged 5.4% DM and 6.1% N (DM basis). In experiment 1, 20 Holstein cows were offered effluent free choice or no effluent for 8 wk. Milk yield, composition, and group feed intake were measured. In Experiment 2, 20 cows were fed effluent blended into the TMR (11.3 L/d per cow) or no effluent for 4 wk. In Experiment 3, six groups of 6 heifers were offered free choice or no effluent. Free choice intake of effluent peaked at 15 L/d per cow at wk 3 but declined to 5.3 L/d per cow by wk 6. Milk and 3.5% FCM yields were not affected by effluent regardless of feeding system. Milk protein and fat percentages were higher for cows offered effluent free choice. Milk protein percentage and yield were lower with effluent in the TMR. Intake of effluent by heifers was 1.05 L/d, and effluent did not affect DMI or weight gain. Acceptability of yeast effluent fed free choice is poor, but when yeast is blended into the TMR, cows consume effluent without adverse effects on milk yield or DMI.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fermento Seco
/
Bovinos
/
Ração Animal
Limite:
Animals
Idioma:
En
Revista:
J Dairy Sci
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
Estados Unidos