Abstract:
The anatomical development of stomach compartments was studied in 36 male and 4 female newly born buffalo calves. It was observed that at birth the abomasum was about 111 times as large as rumen and reticulum together. At 28 days of age, the abomasum became 'nearly as large as the reticulum and rumen together. The rumen and reticulum continued to develop on an increased rate than the abomasum as the age of the calf advanced. At 112 days of age, the rumen and reticulum together became 1% times larger than the abomasum. At. 168 days of age, the rumen and reticulum were 1% times larger than abomasum. At birth the rumen had no horny projections, reticulum had poor development of reticulations, omasum had folds, and the abomasum had laminea in the fundus region while the pyloric region was not fully demarcated. At 4 days of age, rumen had slight development of horny projections, pyloric region of abomasums was demarcated but there was no change in other compartments. At 7 days age, the position of rumen, reticulum and ,abomasum remained the same whereas the pyloric region of abomasum exhibited little development of laminea which were developed but were less in number at 14 and 2R days of age. At 42 days of age, the rumen had good development of horny projections and both regions of abomasum had laminea. At and after 49 days of age, all the compartments showed their respective outgrowth fully developed. At birth, the percentage weight of rumen was the same as that of abomasum but at 84 and 168 days of age, it was nearly 150% and 300%, respectively. At birth, the ratio of rumen and abomasum was 1:1 till it became 3:1 at 16R days of age.
Page(s):
155-171
DOI:
DOI not available
Published:
Journal: West pakistan journal of agricultural research, Volume: 5, Issue: 2, Year: 1967