Performance of lactating dairy cows fed whole cottonseed coated with gelatinized starch plus urea or yeast culture.

Performance of lactating dairy cows fed whole cottonseed coated with gelatinized starch plus urea or yeast culture. Research Abstract Details 

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Performance of lactating dairy cows fed whole cottonseed coated with gelatinized starch plus urea or yeast culture. Abstract Text:

K M Cooke,J K Bernard,J W West,

Thirty lactating Holstein cows were used in an 8-wk randomized design trial to test the viability of select additives included in the gelatinized corn starch coating applied to whole cottonseed (WCS) on nutrient intake and digestibility and milk yield and composition. Treatments included WCS coated with 2.5% gelatinized corn starch (control); control plus 0.5% urea; or control plus 2.0% yeast culture. The treated WCS represented 12.6% of the dietary dry matter. Cellulose intake was lower for the control coating compared with either the urea or yeast coating because of slightly lower cellulose concentrations in the control treatment. Intake of all other nutrients was similar for all treatments. Whole-tract nutrient apparent digestibility was not altered by treatment. Dry matter intake and milk yield were similar among treatments. Percentage solids-not-fat was lower for the yeast treatment compared with control, but no other differences were observed in milk composition among treatments. Efficiency of milk production (energy-corrected milk yield per unit of dry matter intake) was higher for the urea and yeast treatments compared with control because of slightly higher yield of milk fat and energy-corrected milk. No differences were observed in body weight change during the trial between treatments. Results of this trial indicate that including urea or yeast culture in the gelatinized starch coating does not change whole tract digestibility, but does improve milk production efficiency.

Performance of lactating dairy cows fed whole cottonseed coated with gelatinized starch plus urea or yeast culture. Publishing Authors By Initials

KM Cooke,JK Bernard,JW West,

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Performance of lactating dairy cows fed whole cottonseed coated with gelatinized starch plus urea or yeast culture. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of dairy science

VOLUME: 90

Page Numbers: 360-4

Journal Abbreviation: J. Dairy Sci.

ISSN: 1525-3198

DAY: 21

MONTH: Jan

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: Department of Animal and Dairy Science, The University of Georgia, Tifton 31793-0748, USA.

Country: United States

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MEDLINETA: J Dairy Sci

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