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Animal Reproduction and Physiology
Asian-Australasian Journal of Animal Sciences 1992;5(3): 527-532.
https://doi.org/10.5713/ajas.1992.527    Published online September 1, 1992.
Changes in contents and localizations of carbonic anhydrase II. prochymosin and pepsinogen in abomasal mucosae during long term milk feeding goats
H. Amasaki, S. Gozawa, Y. Shimomura, R. Akuzawa, K. Suzuki, M. Daigo
The present paper describes temporal changes of immunohistochemical localization and quantities of carbonic anhydrase isozyme II (CA-II) prochymosin (PC) and pepsinogen (PN) in goat`s abomasal mucosae during long term milk feeding. The CA-II was not detected by day 14 after birth and then became positive on day 34 in the parietal cells, suggesting that the excretion of the hydrochloric acid (HCl) begins between days 14 and 34 under a feeding condition without solid materials. The quantity of the PC in the gastric chief cells detected by the ELISA showed rapid increase from the day of birth, making a peak on day 8 and then gradually decreased with age. The decrease in quantity of PC became started during the time period when HCl excretion had not started yet. The quantities of PN in the gastric chief cells were almost stable during the whole period examined. Expressions of these gastric enzymes did not seem to be regulated by the change of feeding condition.
Keywords: Carbonic Anhydrase II; Prochymosin; Pepsinogen; Goat Abomasum
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