The present study evaluated slaughterhouse goat ovaries and follicles to know the effect of corpus luteum on the number and quality of ovarian follicles. For this study, 18 goat ovaries were collected and categorized as ovaries with corpus luteum (CL+) and without corpus luteum (CL–) group. Both groups were evaluated by morphometric measurements and histological observation. Among 18 ovaries, 12 ovaries contained CL (66.67%) and 6 ovaries were without CL (33.33%). Based on the morphometric measurements, the length and weight of the ovaries with CL were numerically higher (p>0.05) than those of the ovaries without CL. But the diameter of the ovaries with CL was significantly higher (p<0.05) than those of the ovaries without CL. In comparison to the CL– group, the CL+ group had a numerically higher (p>0.05) number of follicles with a diameter of 2-6 mm and > 6 mm. Histological analysis revealed that the total number of follicles (primary to antral) in CL– group (11.10±2.47) was numerically higher (p>0.05) than that of the CL+ group (10.07±2.47). Presence of primary (4.44±1.59), secondary (1.45±0.83) and antral (6.27±1.31) follicles were found higher (p>0.05) in ovaries without CL than that of with CL (4.05±1.61, 0.92±0.21, 5.08±1.21 respectively). On the other hand, the number of degenerated primary (1.29±0.56), secondary (0.52±0.14) and antral (3.38±0.66) follicles were found comparatively higher (p>0.05) in the ovaries with CL than that of the ovaries without CL (1.14±0.69, 0.37±0.19, 2.40±0.40 respectively). Since, there was no statistical difference found among the number of total and different types of follicles between ovaries with or without corpus luteum; hence, it may be summarized that both type of ovaries may be used for the retrieval of oocytes for further reproductive biotechnological study. Bangladesh Journal of Animal Science, 51 (4): 145-151
Reproductive anatomy is vital for successful reproductive management and has significance for application of assisted reproductive biotechnology. This study was carried out to characterize biometrically and histologically reproductive organs of 50 slaughtered female cattle (<3 years; n=25, 3 to ≤5 years; n=25). The measurements (length, weight and width) of the right segment of the studied reproductive organs were greater compared to the left segment. No significant difference (p>0.05) was observed between left and right ovary length, width and weight within and between age groups. The length of ovaries were 1.92±0.19 cm and 1.95±0.04 cm at <3 years; 2.16±0.21 cm and 2.17±0.19 cm at 3 to ≤5 years; width were 1.09±0.14 cm and 1.17±0.10 cm at <3 years and 1.31±0.10 cm and 1.46±0.11 cm at 3 to ≤5 years and the weight were 1.77±0.41 gm and 2.20±0.57 gm at <3 years; 1.79±0.45 gm and 2.54±0.14 gm at 3 to ≤5 years in the left and right ovaries, respectively. Oviduct length, width and weight did not differ significantly (p>0.05) between the left and right oviducts within and between the age groups. Oviduct length (16.36±0.78 and 17.58±0.97 cm), width (0.21±0.02 and 0.26±0.33 cm) and weight (0.72±0.03 and 0.81±0.11 gm) was found for the right oviduct at <3 years and 3 to ≤5 years and for left oviduct length, width and weight were 16.20±0.65 and 16.64±0.86 cm; 0.19±0.02 and 0.23±0.03 cm; and 0.69±0.04 and 0.79±0.13 gm, at <3 years and 3 to ≤5 years, respectively. However, uterine horn length differed significantly (p<0.05) between age groups in the left (16.18±1.18 vs 27.45±2.98 cm) and the right horn of the uterus (17.45±1.40 cm vs 28.35±2.88 cm). On the other hand, uterine horn width and weight were not differed significantly between the left and right segments within and between the age groups. Uterus body length and weight were significantly (p<0.05) higher at 3 to ≤5 years compared to <3 years old cow. The average weight, length and width of uterine body were 44.40±7.33 gm vs 21.49±5.91 gm; 7.89±0.61 cm vs 5.87±0.43 cm; 3.46±0.27 cm vs 2.76±0.34 cm at <3 years and 3 to ≤5 years, respectively The whole uterus weight was also differed significantly (p<0.05) at <3 years (47.18±14.92 gm) and 3 to ≤5 years (86.07±11.98 gm). Histological studies showed ideal characteristics of cattle oviduct and uterus. In nutshell, the right ovary was larger in length, wider in diameter, and heavier in weight as compared to left one in indigenous cattle of Bangladesh. Bangladesh Journal of Animal Science 51 (4): 169-177
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.