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Table 4. Fiber components of yellow and brown rapeseed hulls (% of dry matter)' Component Hull color Yellow Brown Cnide fiber Neutral detergent fiber Acid detergent fiber Acid detergent lignin Cellulose Hemicellulose
113.2 Carbohydrates The carbohydrate content of yellow- and brown-seeded canola is show in Tabk 5. Sucrose content of meals derived nom yellow-seeded samples was higher than that of brown-seeded canola (9.8 % vs 7.7 %). This value is in agreement with more recent studies conduaed on a large number of yeiiow-seeded samples (Simbaya el al., 1995). Higher sucrose content in yeUow - seeded canola would increase the digestible energy content of the meal since sucrose is highly digested and absorbed by the chicken or pig. On the other hand, the oligosaccharides raffinose, stachyose and verbascose are not digested in the small intestine and are believed to depress digestibility of energy by increasing the rate of feed passage through the gut (Leske et al., 1993). The yellow- and brown- seeded canola have been found to contain similar amounts of oligosacchandes (2.4 % vs 2.5 %)(Slominski et al., 1994a; Simbaya cl al., 1995). There was no difference in the amount of low- molecular weight carbohydrates present in hulls Frorn yellow- and brown-seeded rapeseed ( 3 $4 % vs 3.7 % ), with sucrose content averaging 2.8 1 % and 2.85 % for yellow and brown hulls, respectively (Theander, 1977). 113.3. Protein Yellow-seeded canola/rapeseed tends to have a higher level of protein than that of the brown type. Since the embryos contain much more protein than the seed coats, higher protein content in yeiiow- seeded canola could result from a greater proportion of cotyledones Ui the seed. On the other hand, the crude protein content of yellow hulls is on average, higher than that of brown hulls (17.8 % vs 14.0 %)(Stringam et ai.. 1974; Bell and Shires, 1982; Mitani et al., 1984). With regard to protein
Page 1 and 2: CHEMICAL COMPOSlTlON AND NUTRlTLVE
Page 3 and 4: THE UNIVERSI'IY OF MANITOBA FACULTY
Page 5 and 6: ABSTRACT Part A: Chernical Composit
Page 7 and 8: 2882 kcavkg, respectively) and show
Page 9 and 10: ............................... 1 2
Page 11 and 12: TABLE 1. TABLE 2. TABLE 3. TABLE 4.
Page 13 and 14: of Siqis dbu mucilage isolate (mg/g
Page 15 and 16: 1. LITERATURE REVIEW 1.1. Part A: Y
Page 17 and 18: esearch on yellow-seeded canola has
Page 19 and 20: 1.1.3. Quality Characteristies of Y
Page 21 and 22: Table 3. Composition of dietary fib
Page 23: detergent fiber, acid detergent fib
Page 27 and 28: quality, the results of in vitro pr
Page 29 and 30: oiier chickens was obsened although
Page 31 and 32: Table 7. Chernical Composition of C
Page 33 and 34: apesedcanola, age of animals, proce
Page 35 and 36: 2. Manuscnpt One Chernical Composit
Page 37 and 38: evaluation has shown yellow-seeded
Page 39 and 40: y gas-liquid chromatography accordi
Page 41 and 42: Table 8. Composition and calculatec
Page 43 and 44: studies (Simbaya et al., 1995), alt
Page 45 and 46: polyphenols, cell wall protein and
Page 47 and 48: Table 12. Amino acid composition of
Page 49 and 50: Table 13. Phosphorus content of mea
Page 51 and 52: yellow-seeded samples. In general,
Page 53 and 54: 2-4, CONCLUSIONS 1. Detailed chemic
Page 55 and 56: 3.1. INTRODUCTION The Sincgis aibu
Page 57 and 58: were f?om Quest Internat ional Irel
Page 59 and 60: added and the mixture wu boiled for
Page 61 and 62: Table 16. Composition and Caiculate
Page 63 and 64: ground in a coffa grinder and poole
Page 65 and 66: pre-treatment of the sample with &S
Page 67 and 68: Table 19. Effect of H,SO, concentra
Page 69 and 70: Table 20. Screening for Mucilage De
Page 71 and 72: Table 22. The effect of enzyme conc
Page 73 and 74: Table 23. The effect of micronizati
Page 75 and 76:
content. It is a weU known fact tha
Page 77 and 78:
Table 25. Effect of grinding on TME
Page 79 and 80:
4. REFERENCES Andrews RR. and N.A.
Page 81 and 82:
1585.75 Englyst H. and J.H. Cummin&
Page 83 and 84:
Marquardt, RR, 1997. Enzyme enhance
Page 85 and 86:
and in vivo studies. Anim. Feed Sci
Page 87:
canola and soybean on the bioavaiia
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