Answers are grounded in this paper and cite their sources.
Uterine tissue sections of 110 repeatbreeding cows were studied for the relationship between age and number of calvings on total uterine thickness, muscle thickness, mucosal thickness, number of gland cross sections per square millimeter, and gland diameter. It was found that 30% of the variation in muscle thickness was due to age, independent of number of ealvings. Variation in gland cross section numbers was due to individual cow differences, with no significant effect due to age or number of calvings. Likewise, variation in gland diameter was associated with individual cow differences and differences within an individual cross section.
No takes yet. Share an insight, caveat, or question.
Mochow et al. (1966) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: