Abstract
The present study consists on age-related analysis of reproductive activity in male
dromedary camel from extreme arid area. Five reproductive traits of 20 bull camels
were recorded and computer-assisted histomorphometric evaluation of 48 paired testes
were performed to establish quantitative developmental pattern in relation to their
respective age. The pubertal changes were displayed mainly at 4 to 5 years old with
increased sperm reserves, seminiferous tubules volume, diameter and total length, high
relative volume of interstitial tissue components, high individual Leydig cells volume
and total number Leydig cells. At this age the first reductional miotic splits and first
spermatids and spermatozoa in the seminiferous lumen tubules were significantly
developed leading to increase the mean germ cells number and tubular fertility indexes.
Animals in this age category showed the highest proportion of first mating (50%), while
mating frequency and time were relatively higher. These reproductive traits were
improved significantly with spermatogenesis efficiency in mature animals aged > 6
years old. The testicular spontaneous degeneration was observed in animals ages ≥13
years old. Our data showed long postnatal duration to onset spermatogenesis and
endocrine compartment proliferation, that lead to delayed puberty (4 to 5 years), short
duration of maximum activity (8 to10 years) and early genital degenerative involution
( from 13 years).
Djalel Eddine Gherissi, Meriem Boukhili, Amina Gherissi. (2020) Genital histomorphometrical evaluation and survey on reproductive traits of male camel (Camelus dromedarius) in relation to the pubertal age under extreme arid conditions, Asian Journal of Agriculture and Biology, Volume 8, Issue-4.
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