Nutritive value of some wheat varieties assessed with Aspergillus flavus in comparison to rat feeding experiments

1977 ◽  
Vol 27 (3-4) ◽  
pp. 249-254 ◽  
Author(s):  
M. Mohyuddin ◽  
T. R. Sharma ◽  
Phoola Dhar ◽  
E. -G. Niemann
2006 ◽  
Vol 1 (11) ◽  
pp. 1934578X0600101 ◽  
Author(s):  
Biljana V. Vucelic-Radovic ◽  
Vjaceslav M. Nesic ◽  
Mirjana A. Demin ◽  
Mirjana M. Milovanovic

The objective of this study was to investigate how selective removal of the surface layers of whole wheat grains by abrasive scouring affects the distribution of mineral elements (macronutrients, micronutrients and trace elements) and the B group vitamins (thiamin, riboflavin pyridoxine, pantothenic acid and niacin) in three soft winter wheat varieties (Partizanka, Novosadska rana and Lasta). Although representing technologically different quality classes of wheat, the varieties were not significantly different in the B group vitamin contents, except for pyridoxine. Whole grains of all varieties exhibited very similar scouring behavior in reduction of vitamins: the most intensive investigated regime only slightly, but not significantly reduced the concentration of the B group vitamins. The nutritive value of scoured wheat grains with regard to the B group vitamins was preserved. The investigated minerals were: Na, K, Ca, Mg, Mn, Fe, Cu, Zn, Ni, Cr, Se, Pb and Cd. The concentrations of minerals in scoured wheat grains were significantly reduced, dropping on average to 65% of the initial values for macro and 55% for microelements. The change of concentrations with the duration of applied treatment followed different patterns for different elements. Furthermore, a different pattern of the change for the same element in different wheat varieties was noticed. This might be due either to different mechanical properties of bran and bran layer interfaces or genotypic variability in distribution of elements in wheat grain. Severe reduction in Pb concentrations was achieved leading to improvement of whole-wheat food safety.


1977 ◽  
Vol 25 (1) ◽  
pp. 200-201 ◽  
Author(s):  
Mirza Mohyuddin ◽  
Trilok R. Sharma ◽  
Ernst G. Niemann

1963 ◽  
Vol 43 (1) ◽  
pp. 22-30 ◽  
Author(s):  
R. S. Bhatty ◽  
J. P. Bowland ◽  
C. F. Bentley ◽  
S. Zalik

The influence of variety, nitrogen fertilization, location (Grey Wooded vs. Black soil) and year of growth on the nutritive value of wheat fed to weanling rats was studied. Methods of dietary supplementation were: (a) no protein or amino acid supplement; (b) 0.6 per cent L-lysine — HCl; (c) wheat gluten to raise the total protein to 20 per cent. A complete vitamin and mineral supplement was added to all diets.Food intake was not influenced by any of the variables. Weight gains for a 2-week period were higher for rats fed Thatcher than for those fed Kenhi wheat (independent of protein content). Location and year of growth also influenced rate of gain. When lysine supplement was added, rats fed fertilized grain grew more rapidly than those fed unfertilized grain. Efficiency of food utilization followed a similar pattern to rate of gain, but varietal differences were less evident.Fifty to eighty per cent of the variation obtained in rat gain was associated with the protein or lysine content of the wheat. An inverse correlation of 0.72 was obtained between the level of protein in the wheat and the percentage of lysine in the protein. As there were no interactions between variety and the other variables, a biological assay with rats could yield useful information on the feeding value of wheat varieties, over and above information obtained from chemical analyses.


1967 ◽  
Vol 7 (29) ◽  
pp. 540 ◽  
Author(s):  
R Milford

The chemical composition and feeding value of seven tropical legumes and lucerne were determined by pen feeding experiments with sheep. Most of the legumes were harvested during autumn and winter. Lucerne had the highest feeding value and the highest values for the tropical legumes were obtained for Vigna vexillata, Lotononis bainesii, and Desmodium uncinatum. After frosting, the feeding values of Phaseolus lathyroides and Vigna vexillata were reduced but that of Desmodium uncinatum was not changed. This may have been due to a greater loss of leaf by both P. lathyoides and V. vexillata than by D. uncinatum. Frost did not affect Lotononis bainesii and Medicago sativa, and both had a higher feeding value than the legumes affected by frost. The usefulness of crude protein and crude fibre for estimating dry matter digestibility and dry matter intake and the relation between dry matter digestibility and dry matter intake is discussed. The use of dry matter digestibility to express the nutritive value of feed energy in preference to organic matter digestibility, starch equivalents, and total digestible nutrients is also discussed.


1957 ◽  
Vol 63 (2) ◽  
pp. 241-261 ◽  
Author(s):  
Roslyn B. Alfin-Slater ◽  
Arthur F. Wells ◽  
Lilla Aftergood ◽  
Harry J. Deuel

PEDIATRICS ◽  
1950 ◽  
Vol 5 (2) ◽  
pp. 210-223
Author(s):  
IRVINE MCQUARRIE ◽  
M. R. ZIEGLER

The nutritive value of cooked lean meat enriched with Ca, P and other minerals, as well as with fat, carbohydrate and vitamins, was compared with that of whole cow's milk in feeding experiments on young growing rats and on two adolescent boys. As judged by changes in body weight, whole carcass analyses, bone composition, blood serum analyses, character of the furry coat and spontaneous motor activity, growing rats thrived at least as well on the meat as on the milk regimen, when the two diets contained the same amounts of Ca, P, Mg and K, as well as protein, fat, carbohydrate and vitamins. The meat formula without any mineral enrichment or with either Ca or P omitted from the salt mixture failed to support normal growth and normal bone composition in the rat. Preliminary N, P and Ca balance studies on two adolescent human subjects showed the Ca- and P-enriched meat to be as good as or slightly better than milk as a source for these elements.


Author(s):  
M.J. Ulyatt ◽  
J.A. Lancashire ◽  
W.T. Jones

Evidence is reviewed to show that, in most circumstances, legumes are of higher nutritive value than grasses. The reasons for such differences are explored using evidence from indoor feeding experiments. In particular, the superiority of legumes over perennial ryegrass appears to be due to a higher intake and a higher ratio of protein/energy absorbed. The mechanisms by which tannins in legumes such as Lotus and sainfoin can reduce bloat and improve nutritive value are also considered. Finally, the management of legumes in relation to their higher feeding value is discussed. It was considered that, because of agronomic factors, the superior nutritive value of legumes is not being exploited in agriculture.


1931 ◽  
Vol 6 (1) ◽  
pp. 355-363 ◽  
Author(s):  
D. B. FINN

Vitamin A deficiencies in the diets of albino rats have been overcome by feeding commercial pilchard oil. The effects of graduated doses have been examined and satisfactory growth rates have been obtained by feeding 12 mg. per day per rat, though no emphasis is placed upon absolute evaluation of vitamin potency. In comparison colorimetric assay gave values lower than the feeding experiments indicate.


2020 ◽  
Vol 12 (4) ◽  
pp. 1584 ◽  
Author(s):  
Szilvia Bencze ◽  
Marianna Makádi ◽  
Tibor J. Aranyos ◽  
Mihály Földi ◽  
Péter Hertelendy ◽  
...  

Modern agriculture depends on the production of very few crop species, which provide lower nutritive value for consumers. The present work summarizes the results of a three-year experiment on hulled wheat varieties as potential candidates for food system diversification. The organic field cultivation tests with 10 emmer and five einkorn landraces and varieties were conducted on ~10m2 plots on sandy soil, and from 2017, under on-farm conditions in eastern Hungary. Most accessions adapted well to the marginal conditions, with some landraces even yielding higher than registered varieties—over 3 t per ha on average over three years. Compared to emmer, einkorn had higher maximum grain yields, but its yield performance varied more than that of emmer. Grain protein and the total phenolic content were high in both species. Compared to emmer, einkorn seeds exhibited a 3.8 times higher content of bound flavonoids and had 3.4 times higher antioxidant activity. Four einkorn accessions were resistant to leaf spot, as well as yellow and leaf rusts. Fusarium infected both species similarly. Our findings indicate that not only registered varieties of ancient wheat species but also their landraces can provide sustainable alternatives both for organic farmers and also for the diversification of agriculture.


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