Animal crude protein

The application of biosolids also increases the nutritional value of blue grama. Tissue levels of nitrogen, phosphorus, potassium, and crude protein increased to recommended tissue concentrations with biosolids treatments. Trace metals in blue grama grass did not increase during the study, thereby eliminating concerns that toxic amounts of these elements could be transferred to grazing animals. 

The production of yeast protein from wood sugars for use as a food for humans and animals became of national importance in Germany. In 1933 and 1934 the German Ministry of Nutrition made arrangements for yeast production from wood sugar at Tornesch. The yield of dry yeast with 50% crude protein was reported to be 25% of the weight of the dry, bark-free wood and the yeast utilized both hexoses and... 

Moore-Colyer, M.J.S., Hyslop, J.J., Longland, A.C. and Cuddeford, D. (1997b) The degradation of organic matter and crude protein of four botanically diverse feed-stuffs in the foregut of ponies as measured by the mobile bag technique. In Proceedings of the British Society of Animal Science, Scarborough, p. 120. 

Kane, P.F. 1987. Comparison of HgO and CuS04/Ti02 as catalysts in manual Kjeldahl digestion for determination of crude protein in animal feed Collaborative study. J. Assoc. Offic. Anal. Chem. 70 907-911. 

Kenyan Serena sorghum for maize in broiler starter diets with different dietary crude protein and methionine levels. Animal Feed Science and Technology 61,27-39. 

Acceptance of DDG and DDGS products as animal feed supplements is limited by the variable "quality" of DDG and DDGS among ethanol plants and the relatively low crude protein content (4). This variability is caused by differing amounts of residual starch and crude protein in DG products. Crude protein content depends in part on preserving protein during the drying step. A study conducted by the Department of Animal... 

The compositional variation of samples of wet DG received from a number of different corn dry mill ethanol plants is given in Table 1. Two of the entries show the variation between samples of wet DG removed from the production line centrifuge of a dry-grind ethanol plant several months apart. The crude protein content was found to vary among the different plants from 31.2 to 35.2%. These results can be compared with those of a study of six Minnesota dry-grind ethanol plants conducted by the Department of Animal Sciences at the University of Minnesota that found crude protein content of DDG and DDGS from these plants ranging from 28.7 to 31.6 % (4). This variation is of some concern to animal feedlot operators. 

Crude protein enriched from 5.9% to 40.3%. Source for animal fodder... 

The lactose can also be fermented under aerobic conditions to yield a biomass for animal feed with a crude protein content of about 45%. Several commercial plants in France and Austria are producing biomass in this way, but with marginal economics. 

Several soy products may be used as protein sources in dog foods. In dry extruded diets, both ileal and total tract crude protein digestibilities of soy-containing diets appear to be equal or superior to diets containing animal protein by-products. On the other hand, in canned foods, texturized vegetable protein can reduce dry matter and crude protein digestibilities by dogs, and soy protein sources usually increase fecal output. A lack of information is apparent on the effects of including soy protein sources in diets fed to cats. 

Figure 1 Crude protein determination by the Dumas method for total nitrogen with the LECO apparatus. (Reproduced from O Keeffe M (1992) Chemical analysis of animal feed and human food. In Smyth MR (ed.) Chemical Analysis in Complex Matrices, pp. 241-287. Chichester Ellis Horwood.)...

Calcium, magnesium, iron, tryptophan, and crude protein (animal feed), ascorbic acid (orange, lemon and tomato juice, green tea, potatoes, red pepper, spinach, and strawberry), sulfite (fruit juice), iron(ll. III) (wines), nitrite (cod liver oil, cured meat), aluminum (spinach leaves, tea leaves), bromate (bread), tryptophan (vegetables and fish), butylated hydroxyanisole (sunflower, com, and olive oil), kojic acid (fermentation broth), and sucrose (milk and soft drinks)... 

There are several examples describing the production of multiple compounds from biomass, or its derived components (Table 9.2). Dairy manure is a type of biomass that contains 12% hemicellulose, 22% cellulose, and 18% crude protein, representing a lai e potential source of carbohydrates as a carbon source and proteins as a nitrc en source. This substrate is uniquely adaptable and advant eous for animal manure refineries. The Rhizopus oryzae ATCC 20344 cell factory produced fumaric acid and chitin fiom the dairy manure. A liquid/ solid separation was used to obtain a nitrc en-rich liquid stream for fungal growth and subsequent chitin accumulation, while the manure s solid stream, which primarily consisted of carbohydrates in the form of cellulose and hemicellulose, could be converted by various pretreatment methods into monosaccharides for fumaric acid production. 

Rhizopus oryzae Mixture containing hemicellulose, cellulose, and crude protein (animal manure refinery) Fumaric acid and chitin 86,87... 

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