Mousa Keshavarz1*, Ehsan Kamrani1, Narges Amrollahi Biuki1 and Hossein Zamani2
...an males. Wet weights of gonads were nearly 8.25% of the mean total wet body weights. Only females were observed by gonad wet weights more than 12 g. The gonad wet weights of females (3.74±3.26) was heavier than males (3.46±2.63). March to August was the spawning months, as a U-shaped trend by August (mid-summer) as its concave curve and it means that the most stores of gonads is in spring. The operational sex ...
Mousa Keshavarz1*, Maryam Soyuf Jahromi2
...l. The wet weight of the gonads was ~8.25% of the mean total wet body weights. The most distribution of gonad wet weights and total wet weights were generally less than 10 g and 80 g, respectively. The females were heavier than the males (~1.77x). The heavier females had more gonads (direct relation, r=0.45) while the lighter males had more gonads (inverse relation, r=-0.52). The males&rsq...
Jianping Gou, Jianli Xiong*, Baoxia Dong, Zhennan Liu and Manman Hou
...rge intestine, lung, and gonads compared to males; however, liver and fat bodies did not differ between the sexes. The sex difference of these organs may contribute to different energy requirements for reproduction between males and females. Our findings suggest that female toads invest considerable resources into gamete production compared to males, and greater internal organs in females are a consequences of high energy requirements for reproduction, which f...
Riaz Hussain Pasha1*, Muhammad Zubair Anjum2, Imran Ullah2, Muhammad Akram Khan3, Adnan Ali4, Saif-Ur-Rehman5, Sana Batool2 and Arslan Emmanuel2
...easonal variation in the gonads of Clupisoma garua was studied from the river Indus and its tributaries in Khyber Pakhtunkhwa and Northern Punjab, Pakistan. A total of 48 fishes of both sexes (n= 12 per season; 9 female and 3 male) were collected in different seasons of 2016-17. Preparatory phase of reproductive cycle was observed in spring with having thick tunica albuginea and rapid spermatogenesis in testes while appearance of cortical alveoli or yolk vesic...
Fan Sigang1, Guo Yihui1* and Xu Youhou2
...cultural industry. Here, gonads in maturing stage were obtained from noble scallops and sequenced using an Illumina high-throughput sequencer, producing 6.68 and 6.70 Gb of data for the ovary and testis, respectively. Reproduction-related genes, including vasa, nanos, and vitellogenin, and sex-determining genes, such as FoxL2, Dmrt, and sox9, were detected. Transcriptome comparison revealed 2,842 differentially expressed genes (DEGs), of which 591 exhibited bi...
Shazia Rasheed1*, Javed Mustaquim2 and Khalil Hasni1
...amining the condition of gonads (physiological) in both sexes of Portunus pelagicus. During the study it was observed that the physiological and functional maturities occur almost at the same size which was from 68 to 75 mm short carapace width or 86 to 94 mm long carapace width. Male P. pelagicus matures earlier than the females. The size at which females attains full sexual maturity is 74-86 mm short carapace width (or 93 to 108 mm long carapac...
Faiqah Ramzan1,2,*, Irfan Zia Qureshi2 and Muhammad Haris Ramzan3
...mmals, the maturation of gonads is not clear yet. The current study tested the hypothesis that continuous kisspeptin administration suppresses gonadotropin and testosterone release and spermatogenesis. Intraperitoneal kisspeptin administration was carried out in 05 weeks old prepubertal male Sprague Dawley rats, twice daily for 12 days, at three different dosage regimens: 10ρg, 1ηg and 1µg compared to control (saline-treated) rats. Effects on pit...
Funda Turan1*, Ihsan Akyurt2 and Sehriban Cek-Yalniz1
...ical examinations of the gonads in all groups revealed no intersex fish. Histological examination of fish treated with red clover extract revealed no damage to the testes or ovaries. Therefore, this study suggested that red clover extract are effective in feminization of African catfish.
... 
Dharti Shahnawaz Thebo1*, Naeem Tariq Narejo2, Muhammad Hanif Chandio3, Faheem Saddar4, Shahnaz Rashid5, Asma Fatima5 and Ghulam Abbas5
...g size, somatic index of gonads and productive potential (fecundity) was considered of the fish under study. Size of the egg increased from March (0.81 mm) to May (1.05 mm) with one spawning peak in May. Somatic index percentage of gonads in both sexes also increased simultaneously from 0.95% (March) to 1.2% (May) for male, and from 3.18% (March) to 5.1% (May) for female. The value of both factors reflects that the fish poss...
Shabana Parveen1*, Naeem Tariq Narejo2, Ayaz Hussain Qadri1, Ghulam Dastagir3, Muhammad Hanif Chandio4, Pervaiz Khan4, Faheem Saddar5, Naveed Ahmad Abro6, Shahnaz Rashid7 and Ghulam Abbas7
...extrusion, there were no gonads during November to January and again start developing from February 0.1 to 1.2 mm that indicated that fish breeds onetime in year having peak during October. GSI values also showed similar trend of increasing the size of gonads from 0.2 to 2.0 and from 0.5 to 5.5 in both sexes. Lastly, it was decided that egg production capacity (fecundity) showed strong association with ovary weight in Channa...
Shazia Rasheed1,*, Ehsan Ullah Mengal1, Robina Manzoor2 and Azra Bano1
...attained by the study of gonads, showed that the smallest mature male had 76 mm short carapace width (SCW) in size and the largest male immature crab had 90 mm SCW. In case of female smallest mature crab had 70 mm SCW, while the largest immature crab had 92 mm SCW. The minimum number of eggs estimated in the female P. segnis was 86,392 while maximum number of eggs was found to be 1,555,820 in a crab of 138 mm SCW. The average fecundity was 523,773 ± 279...
Omar Berkani1*, Souheila Slimani2, Nora Sakhraoui3 and Cherif Abdennour1
...zoa were observed in the gonads of birds exposed to CYP. The FT4 concentration decreased significantly and none of the CYP groups was molting. Treatment with PO aqueous extract seems counteracted the toxic effects of CYP, which was confirmed histopathologically by the noticeable amelioration in the testicular tissues. It was concluded that PO aqueous extract co-administration may be promising as a natural protective herb against CYP-induced reproductive toxici...
