Morphometrical changes of the seminiferous tubules and Leydig cells in Assam goats (<i>Capra hircus</i>) from birth to 10 months

Sarma, Kamal; Devi, Jonali

doi:10.1080/09712119.2016.1174127

Cited by 10 publications

(10 citation statements)

References 23 publications

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“…The significant increase in diameter between 10 and 16 months indicated fast development of the tubules before sexual maturity. Similar findings were documented in Assam goats (Sarma and Devi, 2017) and cattle (Wrobel et al, 1988). Ibrahim et al (2013) reported that an increase in the process of spermatogenesis led to an increase in the thickness and diameter of seminiferous.…”

Section: Discussionsupporting

confidence: 79%

“…The efficiency of Sertoli cells increased from 10 to 16 months of age in bulls. However, the present mean value for efficiency of Sertoli cell was relatively low when compared with other species such as Assam goats and gerbil (Segatelli et al, 2004;Sarma and Devi, 2017). The noticeable flexibility among species in the number of spermatids supported by a single Sertoli cell shows that, in general, species in which the ratio of spermatids to Sertoli cells is higher may also have a higher spermatogenic efficiency (Sharpe, 1984;França and Russell, 1998).…”

Section: Discussionmentioning

confidence: 63%

“…Ratio estimation between primary spermatocytes and spermatogonia in the present work revealed that the efficiency of spermatogonial mitosis did not vary significantly between the age groups. Sarma and Devi (2017) revealed that the efficiency of spermatogonial mitosis increased noticeably from 4 months of age onward, with the maximum being in 10-month-old goats. In mammals, only 2 or 3 of 10 expected spermatozoa are produced from differentiated type A spermatogonia, and the highest level of germ cell apoptosis occurs during the spermatogonial phase through a density-dependent regulation and during meiosis due to chromosomal damage (Almeida et al, 2006).…”

Section: Discussionmentioning

confidence: 98%

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Age related changes in testicular histomorphometry and spermatogenic activity of bulls

Belkhiri

Benbia

Djaout

2021

J Hellenic Vet Med Soc

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The aim of the present study was to evaluate age related changes in testicular histomorphometry and spermatogenic activity of bulls during their sexual development. A total of 36 bulls were selected and divided into four groups (n=9 in each) according to their age. Bulls included in Groups I, II, III and IV were 10, 12, 14 and 16 months old respectively. Left testes of bulls were subjected to histomorphometry after slaughter. Statistical analysis revealed that the secondary spermatocytes, round and elongated spermatids increased significantly (P˂0.05) with the age of bulls. Likewise, both sertoli and leydig cell numbers increased significantly (P˂0.05) with the age of bulls. However, the number of spermatogonia and primary spermatocytes did not change (P>0.05) due to age. The mean tubular diameter increased from 200.70±5.45 μm (10 months of age) to 227.30±9.16 μm (16 months of age) and the total volume of seminiferous tubule per testis from 69.63±1.50 % (10 months of age) to 84.64±2.53 % (16 months of age). A positive linear relationship (P<0.05) was found between meiotic index (Y) and the age (X, in month), which was characterized by the equation 0.048X+3.135 and a coefficient of correlation (R) of 0.396. The correlation between age and sertoli cell efficiency was 0.482 with a regression equation Y= 0.141X+7.696. It is concluded that histomorphometric parameters of the bulls’ testes and spermatogenic activity are correlated with the age, so these parameters provide a reliable tool for the assessment of the reproductive state and sperm production capacity of a bull in a breeding program.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 63%

Section: Discussionmentioning

confidence: 98%

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Age related changes in testicular histomorphometry and spermatogenic activity of bulls

Belkhiri

Benbia

Djaout

2021

J Hellenic Vet Med Soc

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“…Scrotal circumference increases significantly between 12 and 18 months of age. Similarly, the results of [36] on Assam goats showed that the morphometry of seminiferous tubules and Leydig cells experienced a significant increase at the age of 6-8 months. Furthermore, according to [37] and [38] that the size of the scrotal circumference is influenced by body weight.…”

Section: Production Performancementioning

confidence: 74%

Semen Quality of Etawah Crossbreed Bucks Fed with Urea Moringa Molasses Multinutrient Block Supplemented with Native Grass Basal Feed

Syarifuddin¹,

Rizal²,

Riyadhi³

et al. 2022

Advances in Biological Sciences Research

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Moringa leaves contain high and complete nutrients, so they can be used as a making block for multinutrient blocks to improve semen quality. This study aimed to evaluate the effect of using moringa leaf flour in a multinutrient block on the semen quality of Etawah crossbreed (EC) bucks fed by the native grass as basal feed. This study used eight heads of EC bucks aged 36.72±1.06 months with a bodyweight of 54±2.97 kg, which was kept intensively in individual cages for eight weeks. EC bucks were four heads to fed Urea Molasses Multinutrient Block (UMMB) supplement as a control, and four heads EC bucks were fed Urea Moringa Molasses Multinutrient Block (UMMMB) as a treatment. The EC bucks were fed the native grass ad libitum basis as the basal feed. Bodyweight and scrotal circumference measurements were carried out in the first, fourth, and eighth weeks to determine the performance of the experimental goats used. Semen collection for assessing the quality of fresh semen is carried out every week from week 4 to week 8. The variables measured were compared using the independent sample t-test. UMMMB supplementation was not significant (P>0.05) decreased feed consumption ratio, increased body weight, and scrotal circumference (3.10±0.02 vs 2.99±0.09 kgDM; 0.12±0.01 vs 0.14±0.04 kg/day; and 0.04±0.02 vs 0.05±0.01 cm). UMMMB supplementation did not significantly (P>0.05) improve the quality of fresh semen including volume, concentration, viability, abnormalities, and intact plasma membrane (1.1±0.06 vs 1.1±0.05 ml; 389±25.43 vs 419±11.49×10 7 ; 86.74±1.16 vs. 88.66±1.30%; 5.41±0.43 vs. 5.61±0.64%; and 87.00±1.11 vs. 88.94±0.63). Vice versa UMMMB supplementation significantly (P<0.05) increased the total motility of sperm the EC bucks (76.72±1.16 vs 80.26±0.61%). The Results of the present study demonstrated that UMMMB supplementation can improve the sperm quality of EC bucks.

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“…Follow-up results using the Duncan test showed that the seminiferous tubule diameter in the 12, 20 and 33 week age groups showed a significant difference (P <0.05). Sarma and Devi [25] stated that age has an effect on the increase in the diameter of the seminiferous tubules. a, b, c differences superscript within the same row indicate significant differences (P <0.05).…”

Section: Turkey Testicular Histomorphometrymentioning

confidence: 99%

Histology and Histomorphometry of Testes in Turkeys (Meleagris gallopavo) Based on Age Level

Firwan¹,

Akmal²,

Masyitha³

et al. 2021

Advances in Biological Sciences Research

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This study aims to determine the histological and histomorphometric features of the turkey testes based on age levels. Turkey testes were taken from 21 male turkeys which were grouped into 3 different age groups; 12, 20 and 33 weeks. The testes were then processed into histological preparations with a thickness of 3-5 µm and stained with hematoxylineosin (HE). The result showed that histological structure of the turkey testes has different characteristics in different age group. The spermatocytogenesis phase occurred at 12 weeks of age, while the myogenesis phase and the spermiogenesis phase were occurred at 20 weeks and 33 weeks, respectively. Histomorphometric data were analyzed by ANOVA which showed that there was a significant difference between seminiferous tubule diameter, seminiferous tubular epithelial thickness and seminiferous tubule lumen diameter based on age level (P <0.05). As conclusion, there were different spermatogenesis phases with different age group of turkeys. The development of the spermatogenesis phase at each age group of turkey increases the seminiferous tubule diameter, seminiferous tubule epithelial thickness and seminiferous tubule lumen diameter.

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Morphometrical changes of the seminiferous tubules and Leydig cells in Assam goats (Capra hircus) from birth to 10 months

Cited by 10 publications

References 23 publications

Age related changes in testicular histomorphometry and spermatogenic activity of bulls

Age related changes in testicular histomorphometry and spermatogenic activity of bulls

Semen Quality of Etawah Crossbreed Bucks Fed with Urea Moringa Molasses Multinutrient Block Supplemented with Native Grass Basal Feed

Histology and Histomorphometry of Testes in Turkeys (Meleagris gallopavo) Based on Age Level

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