Factors affecting the nutritional value of canola meal: A review

1993 ◽  
Vol 73 (4) ◽  
pp. 689-697 ◽  
Author(s):  
J. M. Bell

In this review canola meal (CM), its nutritionally significant components and the availability of its nutrients to poultry, pigs and cattle were discussed. Avenues for possible improvement in available energy, protein and lysine were identified. Recent findings on glucosinolates were also discussed with the conclusion that a further reduction of glucosinolates through plant breeding is both possible and desirable. The role of the anti-nutrients sinapine, tannins and phytic acid were also considered. The potential impact of improvements to CM on its economic value was examined using linear program least-cost ration formulations applied to typical market situations. Key words: Canola meal, energy, protein, carbohydrates, anti-nutritional factors, economics

2021 ◽  
Vol 32 (Issue 2) ◽  
pp. 8-12
Author(s):  
P. Rimieri

Tall fescue (Festuca arundinacea Schreb.) is represented in Argentina by adapted populations of the continental morphotype, which are long persistent. It is the main perennial forage species cultivated in the temperate region of the country, producing forage for extensive grazing. The development of fescue plant breeding and its contribution to the achievement of higher productivity and better nutritional value with modern synthetic cultivars was the aim of this project. The characters considered were: adaptation and persistence in adverse environments, digestibility, leaf softness and tolerance to rust. The most representative cultivars of the stages and selection criteria considered in this work were: Pergamino El Palenque MAG, Palenque Plus INTA, Brava INTA, Baguala and Luján INTA. Key words: tall fescue, plant breeding, cultivars, germplasm.


1986 ◽  
Vol 66 (3) ◽  
pp. 821-825 ◽  
Author(s):  
R. BLAIR ◽  
R. MISIR ◽  
J. M. BELL ◽  
D. R. CLANDININ

Meals of Triazine-tolerant and Westar canola were found to be similar in chemical composition and nutrient content to commercial canola meal. Male broiler chickens grew at a similar rate from 2 to 4 wk when fed diets based on 20% commercial canola meal, meal from the cultivars, or soybean meal. Key words: Canola, cultivars, composition, nutrition, feedstuffs, chickens


1987 ◽  
Vol 67 (4) ◽  
pp. 1117-1124 ◽  
Author(s):  
B. A. SLOMINSKI ◽  
L. D. CAMPBELL ◽  
N. E. STANGER

A series of experiments involving the use of cecectomized hens and dietary antibiotics as means of controlling hindgut fermentation was conducted to follow the disappearance of intact glucosinolates (IG) from the GI tract of poultry. In addition, a balance study was conducted with colostomized roosters to determine the role of the kidney in the excretion of IG and thiocyanate ion (SCN). Recovery of IG in cecectomized hens was significantly (P < 0.05) higher than in intact hens (80.5 vs. 33.6 mmol 7 d−1). Similarly, IG recovery was significantly (P < 0.05) higher in antibiotic-fed hens than in hens fed no antibiotics. The effect varied among antibiotics with chlorotetracycline and lincomycin showing the greatest response. Both aliphatic and aromatic (glucosinalbin and indoles) IG disappeared from the GI tract to a significantly (P < 0.01) greater extent in intact hens than in cecectomized hens but the absolute amount of disappearance was greater for aliphatic IG than for aromatic IG. Thiocyanate ion (SCN) excretion was high in the urine of colostomized roosters fed canola meal and exceeded intake in antibiotic-fed, cecectomized hens. The biotransformation of absorbed aliphatic IG was indicated as a possible source of the excess SCN. Key words: Poultry, glucosinolates, absorption, cecectomy, antibiotics, thiocyanate ion


2004 ◽  
Vol 84 (3) ◽  
pp. 309-318 ◽  
Author(s):  
D. L. Harmon ◽  
R. M. Yamka ◽  
N. A. Elam

The process of starch assimilation in the ruminant is complex and remains an avenue by which increases in production efficiency can be gained. Ruminal starch digestion is typically 0.75–0.80 of starch intake. Starch that escapes fermentation and flows to the small intestine may be more resistant to enzymatic digestion and on average 0.35–0.60 of starch entering the small intestine is degraded there. Of the fraction that escapes small intestinal digestion an additional 0.35–0.50 is degraded in the large intestine. This suggests that limitations to small intestinal starch digestion do exist. This review summarizes available information describing the digestive and absorptive processes occurring in the small intestine with an emphasis on nutritional factors that influence these processes. A review of experiments measuring small intestinal starch digestion indicates that small intestinal digestion is either highly variable or poorly determined whereas ruminal and large intestinal digestion are much more clearly described. These data indicate that improvements in methodologies are needed before we can accurately describe processes occurring in the small intestine and formulate diets to optimize site of starch digestion. Key words: Ruminant, starch, glucose, small intestine, digestion


2021 ◽  
Vol 12 (3) ◽  
pp. 4018-4027

Nowadays people chose their food and drinks carefully as they are aware of the role of their diet in staying healthy. Human beings are looking for safe, healthy food to get the essential nutrients and have health effects simultaneously. Kombucha, a unique drink, is claimed to have various beneficial effects, and the antioxidant activity is one of the most important ones. Kombucha is mainly based on black and green tea and sugar, but meanwhile, it has been produced by many additional raw materials such as fruit peels, rice, wheat, barley, and honey to add nutritional value and consumer acceptance. This review paper describes the fermentation, biochemistry, and microbiology of kombucha, and also the chemical composition of kombucha was explained along with the main factors affecting the properties of kombucha. This study reviews all aspects of kombucha's antioxidant properties and mentioned the main factors affecting its antioxidant activity.


2021 ◽  
Vol 9 (3) ◽  
pp. 440
Author(s):  
Rahmat Rizky Maulana ◽  
Bustanul Arifin ◽  
Zainal Abidin

The study aims at analyzing travel costs, economic valuations, and factors affecting the frequency of tourist visits to Youth Camp in Wan Abdul Rachman Forest Park. The research was conducted at the Youth Camp in Wan Abdul Rachman Forest Park involving 73 tourist visitors selected by the method of taking moment. Data collection was conducted in November-December 2018. Travel expenses are analyzed by the analysis of travel expenses, economic valuation is calculated using the calculation of travel expenses and consumer surplus and factors that influence the frequency of visitor visits analyzed using regression Poisson. The study shows that the cost of travel borne by visitors to the Youth Camp in Wan Abdul Rachman Forest Park amounted to IDR77,188.13 per individual, the highest travel cost was from the cost of consumption and lowest was from the cost of documentation and miscellaneous charges. Factors affecting the frequency of tourist visits to Youth Camp in Wan Abdul Rachman Forest Park were cost of travel, income, distance, and facilities. Economic value of the Youth Camp in Wan Abdul Rachman Forest Park by using the method of travel costs was IDR1,924,199,.823,454.41.Key words: economic valuation, frequency of visits, travel costs, Youth Camp.


2001 ◽  
Vol 77 (5) ◽  
pp. 846-853 ◽  
Author(s):  
Elaine Teske ◽  
Bronwen Beedle

The authors reviewed the Canadian scene to examine the contribution of women in defining the Canadian forestry agenda and to see what was happening to those women who were advancing to the top and breaking through the canopy. The Canadian forest sector has been and is still a male dominated world. The women who were contacted work in varying jurisdictions—government, industry, academia and consultants. Their perspectives on how the journey to the top was progressing, the challenges faced and the factors affecting this journey are chronicled. Key words: women in forestry, women of influence, role of mentor, barriers, non-traditional career path, women and natural resource management


2008 ◽  
Vol 21 (10) ◽  
pp. 1479-1485 ◽  
Author(s):  
Hossein Gharaghani ◽  
Mojtaba Zaghari ◽  
Gholamreza Shahhosseini ◽  
Hossein Moravej

2014 ◽  
Vol 14 (2) ◽  
pp. 245-256 ◽  
Author(s):  
Krzysztof Kozłowski ◽  
Heinz Jeroch

Abstract This paper outlines the main goals and methods for improving the nutritional value of poultry diets. The benefits of various processing techniques are demonstrated using the example of rapeseed and rapeseed by-products, i.e. rapeseed cake and rapeseed meal. The progress made in plant breeding in the past decades led to a significant reduction in the content of anti-nutritional factors and ingredients which reduce the nutritional value of feed. Rapeseed by-products have become a valuable source of protein for feedstuffs, and they can be safely used in poultry rations at high inclusion rates. Mechanical treatments, such as rapeseed hulling, and enzyme supplementation (phytases, carbohydrases) also significantly increase the nutritional value of feed ingredients. Further research is needed to tap into the new opportunities for improving the nutritional value of feedstuffs


1980 ◽  
Vol 1 ◽  
pp. 116-118
Author(s):  
J.C. Paterson

The role of Plant Selectors' Rights in encouraging private plant breeding is emphasized and the importance of developing low cost testing schemes for Rights is stressed. The excellent prospects for the development of the New Zealand seed industry are discussed. Key words: Plant Selectors' Rights, herbage seed production, New Zealand.


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