Some Factors Affecting Fermentation Capacity and Net Growth of Rumen Microorganisms
AUTOR(ES)
El-Din, Manal Zaki
RESUMO
The fermentation rate of rumen microorganisms obtained from a sheep fed on hay was determined at different hours after feeding. The highest rate of fermentation was obtained immediately after feeding whereas the lowest rate was always before feeding. The effect of adding glucose, sucrose, and starch alone or in combination with urea, sodium citrate, or succinic acid on the maximal fermentation rate was studied. In no case was the maximal fermentation rate greater than that obtained in the presence of concentrate and straw. An investigation on the effect of C/N ratios, dilution, and substrate concentration on the net growth of rumen microorganisms was undertaken. The highest net growth value was obtained with a C/N ratio of 16.5 to 17.5, which is the ratio found for the ration fed to the animal. It was possible to increase net growth approximately threefold by using the proper dilution and fivefold by using the proper feed concentration.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=377976Documentos Relacionados
- Fermentation Capacity as a Measure of Net Growth of Rumen Microorganisms
- Evaluation of a Method of Measuring Fermentation Rates and Net Growth of Rumen Microorganisms
- Some factors affecting selective adherence of microorganisms in the bovine mammary gland.
- Some Chemical Factors Influencing Growth and Pigmentation of Certain Microörganisms 1
- Function of Growth Factors for Rumen Microorganisms I. Nutritional Characteristics of Selenomonas ruminantium