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Developments in the breeding of low fibre rapeseed/canola

Department of Animal Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
J. Anim. Feed Sci. 1997;6(3):303–318
Publish date: 1997-08-19
Evaluation of the nutritive profiles of the meals derived from yellow-seeded Brassica napus, B. rapa, B. juncea carinata and Sinapis alba genotypes (27 samples) and conventional brown-seeded canola (7 samples) was undertaken. On average, in comparison to brown-seeded, yellow seeded types contained more sucrose (8.7 vs 7.5%) and protein (44.5 vs 42.7%) but similar amouns of oligosaccharides (2.3 vs 2.5%), ash (6.9 vs 7.0%), a nonstarch polysaccaharides (20.4 vs 19.7%). Total dietary fibre averaged 28% for yellow-seeded samples and 33% for brown-seeded samples and was negatively correlated (r = -0.71) with protein content. The negative relationship between protein and dietary fibre contents was also evident for the sample of conventional canola grown under different environment conditions. An in vitro digestible protein measurement was used to establish optimal conditions for the processing of canola seed. Digestible protein content of three oil free seed samples increased substantially with increased temperature of moist heat treatment up to 108 ± 1°C. Heat treatment below 105°C was not effective in promoting protein digestibility. Application of higher temperatures ( > 110°C) resulted in a significant decline in protein digestibility. The optimal moist heat treatment conditions were chosen for processing of the seed samples selected for further evaluation in vivo. The samples included the yellow-seeded B. napus, B.juncea and B. rapa and the brown-seed B. napus canola. Availability of energy and amino acids and the overall feeding quality as determined in a 2-week growth trial with 4-day-old broiler chickens were assessed. Two commercial meals from yellow-seeded B. rapa and brown-seeded B. napus canola served as control samples. Availability of amino acids averaged 84.1 % with only minor differences among the samples. True metabolizable energy (AMEN) content was highest in the yellow-seeded B. napus sample. There were no differences in weight gain of broiler chickens fed the commercial or laboratory prepared B. rapa and yellow- and brown-seeded B. napus meals. Chickens fed B.juncea meal showed significantly lower feed intake and body weight gain which appeared to be attributed to a relatively high content of aliphatic glucosinolates in particular meal (i.e., 21.7 µmol/g DM). Birds fed the yellow-seeded B. napus canola showed the highest feed efficiency value which averaged 1.51 and differed significantly from that of 1.59 and 1.61 for the commercial yellow-seeded B. rapa and the laboratory prepared brown-seeded B. napus canola, respectively. It may be surmised that future cultivars of yellow-seeded canola will have improved nutritive value. Effective introduction of Brassica juncea nad Sinapis alba as new crops for the Canadian Praires would necessitate further quality improvement by lowering the glucosinolate content.
1. Determination of the net energy content of canola meal fromBrassica napusyellow andBrassica junceayellow fed to growing pigs using indirect calorimetry
Jung Min Heo, Deborah Adewole, Martin Nyachoti
Animal Science Journal
2. Proanthocyanidin biosynthesis in the seed coat of yellow-seeded, canola quality Brassica napus YN01-429 is constrained at the committed step catalyzed by dihydroflavonol 4-reductaseThis paper is one of a selection of papers published in a Special Issue from the National Research Council of Canada – Plant Biotechnology Institute.
Leonid Akhov, Paula Ashe, Yifang Tan, Raju Datla, Gopalan Selvaraj
3. The effect of different dietary levels of canola meal on growth performance, nutrient digestibility, and gut morphology of broiler chickens
E. Gopinger, E. G. Xavier, M. C. Elias, A. A. S. Catalan, M. L. S. Castro, A. P. Nunes, V. F. B. Roll
Poultry Science
4. Natural mutations in two homoeologous TT8 genes control yellow seed coat trait in allotetraploid Brassica juncea (AABB)
Lakshmi K. Padmaja, Parul Agarwal, Vibha Gupta, Arundhati Mukhopadhyay, Yaspal S. Sodhi, Deepak Pental, Akshay K. Pradhan
Theoretical and Applied Genetics
5. Pigmentation in the developing seed coat and seedling leaves of Brassica carinata is controlled at the dihydroflavonol reductase locus
M.A.Susan Marles, Margaret Y Gruber, Graham J Scoles, Alister D Muir
6. Mapping and tagging of seed coat colour and the identification of microsatellite markers for marker-assisted manipulation of the trait in Brassica juncea
K. Lakshmi Padmaja, N. Arumugam, V. Gupta, A. Mukhopadhyay, Y. S. Sodhi, D. Pental, A. K. Pradhan
Theoretical and Applied Genetics
7. Chemical composition and nutritive value of canola-quality Brassica juncea meal for poultry and the effect of enzyme supplementation
M. Radfar, A. Rogiewicz, B.A. Slominski
Animal Feed Science and Technology
8. Chemical and nutritive characteristics of canola meal from Canadian processing facilities
D.I. Adewole, A. Rogiewicz, B. Dyck, B.A. Slominski
Animal Feed Science and Technology
9. Nutritive value for broilers of meals derived from newly developed varieties of yellow-seeded canola
B.A Slominski, J Simbaya, L.D Campbell, G Rakow, W Guenter
Animal Feed Science and Technology
10. Identification of a major gene and RAPD markers for yellow seed coat colour in Brassica napus
Daryl J Somers, Gerhard Rakow, Vinod K Prabhu, Ken RD Friesen
11. Low-Fiber Canola. Part 1. Chemical and Nutritive Composition of the Meal
Bogdan A. Slominski, Wei Jia, Anna Rogiewicz, Charles M. Nyachoti, Dave Hickling
Journal of Agricultural and Food Chemistry
12. Low-Fiber Canola. Part 2. Nutritive Value of the Meal
Wei Jia, Dariusz Mikulski, Anna Rogiewicz, Zenon Zduńczyk, Jan Jankowski, Bogdan A. Slominski
Journal of Agricultural and Food Chemistry
13. Nutrient digestibility and growth performance of pigs fed diets with different levels of canola meal from Brassica napus black and Brassica juncea yellow1
N. Sanjayan, J. M. Heo, C. M. Nyachoti
Journal of Animal Science
14. Ileal amino acid digestibility in canola meals from yellow- and black-seeded Brassica napus and Brassica juncea fed to growing pigs1
M. A. Trindade Neto, F. O. Opepaju, B. A. Slominski, C. M. Nyachoti
Journal of Animal Science
15. Metabolic Characteristics in Meal of Black Rapeseed and Yellow-Seeded Progeny of Brassica napus–Sinapis alba Hybrids
Jinjin Jiang, Yue Wang, Tao Xie, Hao Rong, Aimin Li, Yujie Fang, Youping Wang
16. Yellow-seeded B. napus and B. juncea Canola. Part 1. Nutritive value of the meal for broiler chickens
M. Rad-Spice, A. Rogiewicz, J. Jankowski, B.A. Slominski
Animal Feed Science and Technology
17. Rapeseed and soybean products as protein sources for growing turkeys of different ages
S. Palander, M. Näsi, I. Ala-Fossi
British Poultry Science