scholarly journals Supplementation with Vitamin B12 and Amino Acids of Chick Diets Containing Soybean or Cottonseed Meal

1952 ◽  
Vol 31 (1) ◽  
pp. 110-114 ◽  
Author(s):  
L.J. Machlin ◽  
C.A. Denton ◽  
H.R. Bird
Keyword(s):  
Amino Acids ◽  
Vitamin B12 ◽  
Cottonseed Meal

The Enhancement of Iron Absorption in Rats by D-Sorbitol

PEDIATRICS ◽  
1958 ◽  
Vol 22 (4) ◽  
pp. 705-705
Keyword(s):  
Amino Acids ◽  
Vitamin B12 ◽  
Intestinal Mucosa ◽  
Iron Absorption ◽  
Significant Enhancement ◽  
Clinical Therapy ◽  
Tartaric Acids

Recently investigations have shown that the carbohydrate, D-Sorbitol, enhances the absorption of vitamin B12. Certain amino acids and ascorbic, citric and tartaric acids tend to enhance iron absorption. In view of these findings, the authors undertook to determine the effect of D-sorbitol on iron absorption in the rat. It was found that D-sorbitol causes significant enhancement of the absorption of iron in iron-depleted as well as in normal rats. It was also shown that the amount of iron absorbed increased in proportion to the amount of D-sorbitol administered with the iron. These experiments suggest that the absorption of iron may not be controlled exclusively by the amount of apoferritin in the intestinal mucosa. Possible beneficial or deleterious consequences of the application of these findings to clinical therapy remain to be determined.

Utilization of ileal digestible amino acids by growing pigs: isoleucine

1994 ◽  
Vol 71 (4) ◽  
pp. 531-541 ◽  
Author(s):  
E. S. Batterham ◽  
L. M. Andersen
Keyword(s):  
Amino Acids ◽  
Cottonseed Meal ◽  
Soya Bean ◽  
Growing Pigs ◽  
Seed Meal ◽  
Ileal Digestibility ◽  
Protein Concentrates ◽  
Lupin Seed ◽  
Bean Meal ◽  
Soya Bean Meal

Two experiments were conducted to determine the utilization of ileal digestible isoleucine by growing pigs. In the first, the apparent ileal digestibility of amino acids in cottonseed meal, lupin-seed meal and soya-bean meal was determined in pigs fitted with‘T‘-shaped cannulas. In the second, three isoleucine-deficient diets were formulated to 0.23 g ileal digestible isoleucine/MJ digestible energy (DE) with the three protein concentrates contributing the only source of isoleucine in sucrose-based diets. An additional three diets were formulated with supplements of isoleucine to confirm that isoleucine was limiting in the first three diets. The growth performance and retention of isoleucine by pigs given the six diets over the 20–45 kg growth phase were then determined. The apparent ileal digestibility of isoleucine in the three protein concentrates (proportion of total) was: cottonseed meal 0.68, lupin-seed meal 0.86, soya-bean meal 0.86. There were no significant differences (P > 0.05) in growth rates (g/d) and crude protein deposition rates (g/d) of the pigs given the three diets formulated to 0.23 g ileal digestible isoleucine/MJ DE: cottonseed meal 590, 84; lupin-seed meal 613, 87; soya-bean meal 594, 91 (SEM 13.0, 2.9) respectively. The response of pigs to the addition of isoleucine confirmed that isoleucine was limiting in these diets. The proportion of ileal digestible isoleucine retained by pigs given the cottonseed meal (0.65) was slightly lower than that retained by pigs given soya-bean meal (0.73; P < 0.05). These results indicate that values for the ileal digestibility of isoleucine in protein concentrates more closely reflect the proportion of isoleucine that can be utilized by the pig than occurs for other amino acids such as lysine, threonine and methionine.

Sequence in which essential amino acids become limiting for growth of rats fed rations containing cottonseed meal

1970 ◽  
Vol 21 (8) ◽  
pp. 437-438 ◽  
Author(s):  
Myna Panemangalore ◽  
M. N. Guttikar ◽  
M. Narayana Rao ◽  
M. Swaminathan
Keyword(s):  
Amino Acids ◽  
Cottonseed Meal ◽  
Essential Amino Acids
Sign in / Sign up

Export Citation Format

Share Document