Author: Thomas Lee MannPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 14
Book Description
An Estimate of the Aggregate Demand for High-lysine Corn by Swine
Author: Thomas Lee MannThe Aggregate Demand for High Lysine Corn and Synthetic Lysine for Swine in the North Central States and Illinois
Author: Thomas Lee MannHigh-lysine Corn and an Additive for Finishing Swine
Author: AERR.
Author: Research Report AERR
Author: University of Illinois at Urbana-Champaign. Department of Agricultural EconomicsPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 560
Book Description
Nutritive Value of High-lysine Corn: Availability and Deficiencies of Essential Amino Acids for Growing Rats and Swine
Author: Ronald Irvin PickPublisher:
ISBN:
Category : Amino acids
Languages : en
Pages : 298
Book Description
Studies involving 210 rats were conducted to determine the extent of amino acid deficiencies in high-lysine corn and to obtain an indication of the availabilities of its constituent amino acids. Rats fed diets based on high-lysine corn and supplemented to meet the requirements for isoleucine, lysine, methionine plus cystine, phenylalanine plus tyrosine, threonine and valine showed excellent daily gains, gain?feed and protein efficiency ratios. The results of this study suggest that high-lysine corn diets containing 0.36% isoleucine, 0.70% lysine or less, 0.40% methionine plus cystine 0.59% phenylalanine plus tyrosine, 0.43% threonine and 0.54% valine were adequate for the growing rat. These findings suggest that the currently accepted requirements of the growing rat for isoleucine, lysine, methionine plus cystine, phenylalanine plus tyrosine and threonine are slightly excessive. The per cent absorbed nitrogen retained was increased significantly when lysine was increased from 0.53 to 0.72% of the diet, was unaffected by an additional 0.19% dietary lysine or by increasing dietary isoleucine from 0.36 to either 0.46 or 0.56% of the diet. It appeared that the protein of the high-lysine corn used in this study was readily digested and that its constituent amino acids were readily available to support rapid and efficient daily gains, and excellent protein efficiency ratios as well as retention of apparently absorved nitrogen.
High Lysine Corn in Swine Diets
Author: University of Nebraska. Extension ServicePublisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Economic Analysis of Erosion and Sedimentation
Author: Franklin J ReissPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 544
Book Description
Economic Use of Modified-protein Corn
Author: JOHN THACKERAY SCOTTPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 34
Book Description
Nutritional Improvement of Food and Feed Proteins
Author: Mendel FriedmanPublisher: Springer Science & Business Media
ISBN: 1468433660
Category : Science
Languages : en
Pages : 879
Book Description
The nutritional quality of a protein depends on the proportion of its amino acids-especially the essential amino acids-their physio logical availability, and the specific requirements of the consumer. Availability varies and depends on protein source, interaction with other dietary components, and the consumer's age and physiological state. In many foods, especially those from plants, low levels of various essential amino acids limits their nutritive value. This is particularly important for cereals (which may be inadequate in the essential amino acids isoleucine, lysine, threonine, and tryto phan) and legumes (which are often poor sources of methionine). Moreover, these commodities are principle sources of protein for much of the earth's rapidly growing population. At the current annual growth rate of about 2 percent, the world population of about 4 billion will increase to 6.5 billion by the year 2000 and to 17 billion by the year 2050. Five hundred milliQn people are presently estimated to suffer protein malnutrition, with about fifteen thousand daily deaths. The ratio of malnourished to adequately nourished will almost surely increase. For these reasons, and especially in view of the limited availability of high quality (largely animal) protein to feed present and future populations, improvement of food and feed quality is especially important.