Hull-less barley for swine: ileal and faecal digestibility of proximate nutrients, amino acids and non-starch polysaccharides
✍ Scribed by Baidoo, Samuel K; Liu, Yong-Gang
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 175 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0022-5142
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✦ Synopsis
The nutritive value of three hull-less barley cultivars (Condor, Falcon and CDC Buck) were evaluated. The samples were analysed for proximate composition, amino acids and non-starch polysaccharides (NSP). Wheat and normal barley were used for comparison. Apparent digestibilities were determined with eight cannulated pigs. The diets were formulated to have all energy and protein supplied by the cereals. Compared to normal barley, hull-less barley has higher contents of protein and amino-acids, and lower levels of Ðbre components. The levels of several essential amino acids in hull-less barley are higher than in wheat. No obvious di †erences in NSP composition were observed, but the hull-less barley contained considerably higher levels of b-glucan compared to hulled barley and wheat. In digestion trials the piglets did not accept the diet in which conventional barley was formulated as the only energy and protein source, whereas hull-less barleys were well consumed. The results showed that, in the order of Condor, Falcon, CDC Buck and wheat, the overall tract digestibilities of intake energy were 83É1, 80É3, 83É2 and 82É9%, and of protein were 72É6, 69É5, 76É5 and 77É6%, respectively. The averages of apparent ileal amino acid digestibility were 56É5, 58É4, 65É3 and 65É4%, respectively. Hull-less barleys showed 20È37% ileal digestibility of total NSP. This study provides digestibility coefficients of hull-less barleys, and it is concluded that the digestibility of hull-less barley is comparable to wheat and superior to hulled barley in terms of nutrient composition and acceptability.
1998 SCI.