A comparison of two contrasting types of grain sorghum in the diet of the growing pig

Almond, M and Smith, W. C. and Savage, G. P. and Lawrence, T. L. J. (1978) A comparison of two contrasting types of grain sorghum in the diet of the growing pig. Grain sourghum in diets for pigs, 29 (1). pp. 143-150.

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A study was undertaken to compare the chemical composition of Texas No. 2 hybrid yellow sorghum with that of a traditional brown-seeded variety and also their digestibility and nitrogen retention in the growing pig. Dry matter, crude protein and gross energy contents and amino acid composition were similar in the two varieties but brown-seeded sorghum had a markedly higher tannin content. In diets containing 70% of either yellow or brown sorghum, N retention was marginally higher on the yellow sorghum diet and apparent digestibility of dry matter, nitrogen and gross energy was improved (0·07, 0·06 and 0·12 units respectively). The improvements in digestible energy and crude protein content of the yellow sorghum diet over the brown-seeded one were 10% and 6% respectively. In a subsequent trial 16 pigs were individually and scale-fed each of the diets over the live-weight range 28 to 81 kg. Growth rates and feed conversion ratios were better on the yellow sorghum diet (10%) but sorghum variety did not influence killing-out percentage, deposition of backfat or area of eye muscle in cross-section.

Item Type: Article
Author Affiliation: Faculty of Agriculture, The University, Newcastle upon Tyne NE1 7RU Department of Animal Husbandry, University of Liverpool, Veterinary Field Station, Neston, Wirral, Cheshire L64 7TE
Subjects: Plant Production
Animal Husbandary > Veterinary Sciences
Divisions: Sorghum
Depositing User: Library ICRISAT-InfoSAT
Date Deposited: 06 Mar 2012 13:41
Last Modified: 06 Mar 2012 13:41
Official URL: http://journals.cambridge.org/action/displayAbstra...
URI: http://eprints.icrisat.ac.in/id/eprint/3593

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