Utilization of micronized sorghum grain by diary calves

Ahmed, A. and Bush, L.J. and Adams, G.D. (1976) Utilization of micronized sorghum grain by diary calves. Journal of Dairy Science, 59 (4). pp. 708-711.

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Female calves, 18 Ayrshire and 24 Holstein, had a starter feed from 3 days old, and whole milk at 8% of bodyweight till the 6th week. At 8 weeks old they were given a mixture containing 60% sorghum grain, dry rolled or micronized, density 380 or 230 g/litre. Soya bean oilmeal was sufficient to bring total protein of the ration to about 18%. Bulk was provided by 15% ground lucerne hay. The trial lasted for 8 weeks; rumen fluid was sampled in the 4th, 5 h after feeding. Digestibility of the 3 feeds was tested with 9 male calves, Holstein or Ayrshire, 4 to 6 weeks old. Mean weight gains of the female calves were 46.9, 46.0 and 43.8 kg, respectively; average feed intake was least and feed efficiency was best with the micronized sorghum. Molar percentages of rumen volatile fatty acids were about the same in the 3 groups. Apparent digestibility of DM and organic matter was slightly greater with micronized sorghum. Digestibility of crude protein and of starch differed little between groups

Item Type: Article
Author Affiliation: Department of Animal Sciences and Industry, Oklahoma State University, Stillwater 74074, USA
Subjects: Animal Husbandary
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 03 Oct 2012 07:25
Last Modified: 03 Oct 2012 07:25
URI: http://eprints.icrisat.ac.in/id/eprint/8198

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