In:
British Journal of Nutrition, Cambridge University Press (CUP), Vol. 97, No. 2 ( 2007-02), p. 298-306
Abstract:
Forty-eight, 21-d-old pigs were used to examine the effects of different types of cooked white rice on starch digestion, digesta and fermentation characteristics, shedding of β-haemolytic Escherichia coli and performance after weaning. Pigs received one of three rice-based diets: (i) medium-grain Amaroo (AM), (ii) long-grain Doongara (DOON), and (iii) waxy (WAXY). The remainder of the diet consisted predominantly of animal proteins. A fourth diet contained mainly wheat, barley and lupins (WBL). On days 1, 3, 7 and 9 after weaning, a faecal swab was taken for assessment of β-haemolytic E. coli and faecal consistency. Apparent digestibility of starch measured in the ileum 14 d after weaning was highest ( P = 0·004) in AM and WAXY and lowest, but the same ( P 〉 0·05), in DOON and WBL. Starch digestibility in the rectum was highest in all rice diets ( P 〈 0·001). Digesta viscosity was highest in pigs fed WBL in both the ileum ( P 〈 0·001) and caecum ( P = 0·027). Pigs fed rice generally had lighter ( P 〈 0·05) gastrointestinal organs than pigs fed WBL. Performance of pigs was similar for all treatments; however, pigs fed rice-based diets had a higher ( P 〈 0·001) carcass percentage than pigs fed WBL. Pigs fed WBL produced more acid ( P 〈 0·05) but had lower molar proportions of acetate ( P 〈 0·05), isobutyrate ( P 〈 0·01) and isovalerate ( P 〈 0·001) and a higher molar proportion of butyrate ( P 〈 0·01) in the large intestine than pigs fed rice. Shedding of E. coli was low; however, pigs fed AM and WBL shed less E. coli than pigs fed other diets.
Type of Medium:
Online Resource
ISSN:
0007-1145
,
1475-2662
DOI:
10.1017/S0007114507332534
Language:
English
Publisher:
Cambridge University Press (CUP)
Publication Date:
2007
detail.hit.zdb_id:
2016047-1
SSG:
12
SSG:
21
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