Effect of Feeding Urea Formaldehyde Complexes Partial Replacers of Protein on the Rumen Fermentation Pattern, Nutrient Utilization and Growth in Crossbred Cattle PDF Download

Author: V. K. Sharma
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Languages : en
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Book Description
The present investigations were carried out to develop slow release products by complexing urea with formaldehyde in various molar proportions by refluxing at various temparatures and study their efficiency on the rate of hydrolysis microbial protein synthesis as well as efficiency of feed utilisation and growth in crossbred calves. The increase in the molar proportion of urea:HCHO and temparature of refluxing at the time of preparation of slow release urea formaldehyde comlexes (SRUFC, s) decreased the total introgen solubality. THe percent hydrolysis rates also decreased with the increase in temparatures of refluxing and molar proportions of urea:HCHO used in the preparation of complexes. The 35s in carporation into bacterial cells decreased with the increaseing refluxing temparature of the SRUFC, s. Maximum percentage of 35s in carporation was achieved with the complexes acidified with H2SO4 complexing urea with HCHO resulted in the increased efficiency of microbial protein formation in the rumen complexes contributed significantly to the TVPA poolas well as TVFA production rates possibly through increased microbial activity in rumen. The bacterial production rates were more in slow release urea formaldehyde complexes as compared to those observed in control and urea fed animals the rumen fluid volumes and its flows rates were not influenced by the inclusion of even urea in the diets. Dry matter organisms matter crude fibre and nitrogen free extract digestibilities were not influenced by the inclusion of either urea is SRUFCs. The retention of nitrogen was significantly higher in animals fed on NPN sources as compared to control diet. Increased efficiency of N-utilization from the complexes were observed compared to that when urea was fed as such to the calves. THe SRUFC 11 (acidified complex) was superior to urea as well as SRUFC 1 (non acidified) as for as dry matter consumption and growth rates of animals were concened. Both the dry matter and cp disgestibilities increased significantly on SRUFC 11 feeding as composition values in terms of fat protein ash and energy did not reveal any significant differences in the various groups due to treatment.