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QUANTIFICATION AND QUALITATIVE CHARACTERISTICS
OF CRUDE PROTEIN IN FORAGE CROPS, FODDERS
AND BIOLOGICAL MATERIALS OF ANIMALS AND BIRDS
Keywords:
crude protein; amino-acid composition; solubility; proteolysis;
forage crops; forage mixture; fodders
The book includes two parts: brief text and the basis — tables.
The results of many-years investigations (1965-2013) of qualitative
composition the crude protein have been systematized and summarized in the
tables.
These data were obtained in Williams Fodder Research Institute as ex
perimental materials, at the execution the complex state programmes on fod
der production, forage crops breeding, fodders processing, zoo-technical es
timation and agricultural animals feeding.
Amino-acid composition was presented as a major characteristic of
crude protein quality. Besides, solubility and proteolysis were placed in the
tables as important parameters, linked with specificity of alimentary system
of ruminant. Microbial protein, synthesized in the gizzard, and not forcipes
protein after proteolysis in rennet and intestine, is the sources of covering the
ruminant animals requirements in the amino acids.
The definitions of such the notions as solubility and proteolysis are
given in the book with methods of its determination according to GOST.
Narrow correlation between the fermentation «in situ» and «in vitro»
for the basic fodders of ruminant rations was found on the level r
24
= 90 ±
0,06 and r6= 0,85 ± 0,09.
The regression equation (n = 291), allowing determination of crude
protein proteolysis on depending the solubility, was developed and the fod
ders classification according to these parameters was presented.
The tables includes about 900 names of objects the study on 20-24 pa
rameters. Amino-acid composition, after determination on the automatic ana
lyzers, was characterized by amino acids contents per 1 g/kg of fodders dry
matter and its percentage shares of crude protein.
The data of qualitative compound the crude protein of biological mate
rial the broiler chickens have been summarized. The broilers were grown on
the forage mixtures with replacement of 50 % the wheat grain on triticale, the
part of soybean and sunflower ground-oil cakes 15 % of spring- and winter-
cultivated vetch, 25 % of narrow-leafed lupine grain, broad beans.
The species and varietal features of crude protein quality for some for
age crops and fodders were detected and recorded.
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