Effect of feeding an Aspergillus oryzae extract on milk production and related responses in a commercial dairy herd

The objective of this study was to examine the effects of an Aspergillus oryzae extract on milk production and composition, rectal temperatures, and rumen metabolites in a commercial dairy herd. Holsteins (110 cows with two or more lactations) in midlactation averaging 140 DIM were used in a 120-d t...

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Published in:Journal of dairy science 1993-05, Vol.76 (5), p.1484-1489
Main Authors: Higginbotham, G. E, Bath, D. L, Butler, L. J
Format: Article
Language:English
Subjects:
aspergillus oryzae
Biological and medical sciences
blood composition
body temperature
breathing
california
californie
chemical composition
complement alimentaire
composicion de la sangre
composicion quimica
composition chimique
composition du sang
dairy cows
environmental temperature
ete
Feed and pet food industries
feed supplements
Food industries
Fundamental and applied biological sciences. Psychology
humedad relativa
humidite relative
lait
leche
milk
milk yield
relative humidity
rendement laitier
rendimiento lechero
respiracion
respiration
summer
suplementos de piensos
temperatura ambiente
temperatura del cuerpo
temperature ambiante
temperature corporelle
urea
uree
vacas lecheras
vache laitiere
verano
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description The objective of this study was to examine the effects of an Aspergillus oryzae extract on milk production and composition, rectal temperatures, and rumen metabolites in a commercial dairy herd. Holsteins (110 cows with two or more lactations) in midlactation averaging 140 DIM were used in a 120-d trial from May to August 1991. Treatments were control (no additive) and A. oryzae (3 g of culture plus 136 g of rice mill byproduct daily). Both groups were fed a TMR composed of alfalfa silage, alfalfa hay, corn silage, rolled barley, whole cottonseed, beet pulp, liquid supplement, and a protein-mineral mix. No differences were detected in actual milk or 3.5% FCM production. Mean milk protein (3.12 vs. 3.05%) and SNF percentages (8.63 vs. 8.51%) were higher for the group fed A. oryzae. Rectal temperatures taken weekly between 1300 and 1500 h were lower for cows fed A. oryzae (38.7 vs. 38.8 degrees C). Cows supplemented with A. oryzae had lower blood urea N concentrations than control cows (13.4 vs. 18.1 mg%).
doi_str_mv 10.3168/jds.S0022-0302(93)77479-2
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ispartof Journal of dairy science, 1993-05, Vol.76 (5), p.1484-1489
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source ScienceDirect Journals; EZB Electronic Journals Library
subjects aspergillus oryzae
Biological and medical sciences
blood composition
body temperature
breathing
california
californie
chemical composition
complement alimentaire
composicion de la sangre
composicion quimica
composition chimique
composition du sang
dairy cows
environmental temperature
ete
Feed and pet food industries
feed supplements
Food industries
Fundamental and applied biological sciences. Psychology
humedad relativa
humidite relative
lait
leche
milk
milk yield
relative humidity
rendement laitier
rendimiento lechero
respiracion
respiration
summer
suplementos de piensos
temperatura ambiente
temperatura del cuerpo
temperature ambiante
temperature corporelle
urea
uree
vacas lecheras
vache laitiere
verano
title Effect of feeding an Aspergillus oryzae extract on milk production and related responses in a commercial dairy herd
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