Basic Digestive Systems

B a c ter ia l f er menta tion c r ea tes metha ne a

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Unformatted text preview: own of feedstuffs. B a c ter ia l F er menta tion c r ea tes Metha ne a nd Ca r bon Dioxide a s wa ste pr oduc ts. This ga s must be r elea sed (belc hed) by r umina nts. F a ilur e to er uc ta te (the sc ienc e wor d for bur p) lea ds to a life- thr ea tening c ondition c a lled B LOAT. B loa t typic a lly oc c ur s in r umina nts ea ting la r ge a mounts of fr esh young gr a ss (fr esh young gr a ss ha s lots of simple suga r s a nd little fiber ) wher e the speed of fer menta tion c r ea tes mor e ga s tha n c a n be belc hed. Retic ula r Gr oove - on the r ight side of the r etic ulum is a "gr oove" tha t extends fr om the esopha gus (wher e esopha gus joins the r umen/r etic ulum) to the opening of the oma sum. This gr oove dir ec ts MILK dir ec tly to the oma sum by- pa ssing the r umen (a nd fer menta tion). The gr oove is N OT func tiona l in non- suc kling a nima ls. Rumen pH - optimum for ba c ter ia l gr owth is 6. 5; but c a n r a nge fr om 5. 5 to 8. 0. Outside this r a nge is "ba d" for the mic r obes, a nd if its ba d for the mic r obes its ba d for the steer , ewe, buc k. The Oma sum - ma de of str ong musc les a nd a ser ies of suspended, a dja c ent a nd pa r a llel "lea ves" (str ips of tissue r unning next to one a nother ) tha t a ppea r to ser ve the pur pose...
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This document was uploaded on 01/24/2014.

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