Effect of feeding varying levels of Amaferm (culture of Aspergillus oryzae) on performance of dairy cows

Persistent Link:
http://hdl.handle.net/10150/277869
Title:
Effect of feeding varying levels of Amaferm (culture of Aspergillus oryzae) on performance of dairy cows
Author:
Denigan, Mary Elizabeth, 1966-
Issue Date:
1991
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Amaferm, a fermentation extract of Aspergilluz oryzae, was fed as a top dressing to dairy cows at 0, 1.5, 3, 6g/d. in two lactation trials. Trial I, conducted during winter-spring, 1989, for 80d, used forty cows in early lactation. Trial II, with twenty-four mid-lactation cows, received similar treatments for 60d in the summer of 1989. Measurements for both trials included milk yield, feed intake, body weight and rectal temperature. Respiration rates were determined for trial II and digestion coefficients for CP, NDF and DM were determined using Cr2O3 as a digesta marker for trial I. In trial I, cows fed 1.5g and 3g Amaferm/d had a higher DMI (P < .06) than cows receiving 0 or 6g Amaferm/d. Respiration rates were significantly higher (P < .05) for 3g Amaferm/d cows. Other parameters were not affected by treatment. These results contrasted previous studies in which 3g Amaferm/d stimulated milk production.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Agriculture, Animal Culture and Nutrition.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Huber, John T.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleEffect of feeding varying levels of Amaferm (culture of Aspergillus oryzae) on performance of dairy cowsen_US
dc.creatorDenigan, Mary Elizabeth, 1966-en_US
dc.contributor.authorDenigan, Mary Elizabeth, 1966-en_US
dc.date.issued1991en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractAmaferm, a fermentation extract of Aspergilluz oryzae, was fed as a top dressing to dairy cows at 0, 1.5, 3, 6g/d. in two lactation trials. Trial I, conducted during winter-spring, 1989, for 80d, used forty cows in early lactation. Trial II, with twenty-four mid-lactation cows, received similar treatments for 60d in the summer of 1989. Measurements for both trials included milk yield, feed intake, body weight and rectal temperature. Respiration rates were determined for trial II and digestion coefficients for CP, NDF and DM were determined using Cr2O3 as a digesta marker for trial I. In trial I, cows fed 1.5g and 3g Amaferm/d had a higher DMI (P < .06) than cows receiving 0 or 6g Amaferm/d. Respiration rates were significantly higher (P < .05) for 3g Amaferm/d cows. Other parameters were not affected by treatment. These results contrasted previous studies in which 3g Amaferm/d stimulated milk production.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectAgriculture, Animal Culture and Nutrition.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorHuber, John T.en_US
dc.identifier.proquest1343807en_US
dc.identifier.bibrecord.b26882358en_US
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