Ovarian maturation and histological observations of Barilius bendelisis (Hamilton) in captivity

2017 ◽  
Author(s):  
Neha Saxena ◽  
Rabindar Singh Patiyal ◽  
Kiran Dube ◽  
Virendra K. Tiwari
Keyword(s):  
Body Weight ◽  
Histological Study ◽  
Gonadosomatic Index ◽  
Ovarian Maturation ◽  
Spawning Period ◽  
Absolute Fecundity ◽  
Fish Samples ◽  
In Captivity ◽  
Barilius Bendelisis ◽  
Captive Condition

Fish samples of Indian hill trout Barilius bendelisis, were collected from the Gaula river (290 17’ 25’’ N Latitude, 790 32’ 143’’ E) and reared in captive condition at Directorate of Coldwater Fisheries Research, Bhimtal (29021´ N, 79034´ E, altitude 1370 m MSL).Gonadosomatic index was found maximum in May for females (13.24 ± 0.92) and males (1.13 ± 0.07) respectively indicating a single spawning period of this species under captivity. Absolute fecundity (total number of eggs) varied from 320 to 4000. The average absolute fecundity was 1661 ± 304.6 at a total length 10.07 ± 0.30 cm and body weight of 11.92 ± 1.23 g. Histological study of the ovary revealed the presence of oocytes at different stages of maturity with a maximum number of the mature oocytes during April to May. Results of the present investigation suggest that B. bendelisis belongs to a category of low fecund fish and spawns during April and May under captive condition.

scholarly journals Reproductive Biology of Feather Back, Chital (Notopterus chitala, Ham.) Cultured in a Pond of Bangladesh

2013 ◽  
Vol 2 (1) ◽  
pp. 26-31 ◽  
Author(s):  
AHM Kohinoor ◽  
DA Jahan ◽  
MM Khan ◽  
MS Islam ◽  
MG Hussain
Keyword(s):  
Body Weight ◽  
Reproductive Biology ◽  
Histological Study ◽  
Gonadosomatic Index ◽  
Experimental Period ◽  
Gonad Weight ◽  
Female Fish ◽  
Fish Samples ◽  
Vitellogenic Stage ◽  
The Mean

Studies on Gonadosomatic index (GSI), ova diameter and histology of the gonad were performed to understand reproductive biology of Feather back, Chital (Notopterus chitala) for a period of 6 months from January to June 2010. Thirty live chital fish were used in this study. The mean GSI values for female chital were found to range between 0.20±0.013 and 4.63±0.50. The highest GSI value was found in June. The smallest diameter of ovum was recorded 0.04 mm (January) and the largest was 4.00 mm (June). During the experimental period, the fecundity was ranged from 8,238 to 18,569 (mean 13,052±4607) in fish samples with body weight range from 1,296 to 2,360 (mean 1,742.50±474.44 g) while the relative fecundity was 5.65 to 14.33. Histological study revealed that the percentage of late perinucleolus (LPN) stage was highest in April and Cortical alveoli (CA) stage appeared from April and reached to maximum in May. Vitellogenic stage (VG) appeared in the month of May and chronologically increased through June. Vitellogenic stage (VG) of oocyte as well as highest ova diameter reached to the peak in June. The variations in the gonad weight and GSI of the female fish reached to the peak during June indicating maturity of ovary and definite spawning season. DOI: http://dx.doi.org/10.3329/ijarit.v2i1.13991 Int. J. Agril. Res. Innov. & Tech. 2 (1): 26-31, June, 2012

scholarly journals Reproductive biology and development of sexually dimorphic structures in Aphyocharax anisitsi (Ostariophysi: Characidae)

2005 ◽  
Vol 3 (3) ◽  
pp. 433-438 ◽  
Author(s):  
Taís K. Gonçalves ◽  
Marco A. Azevedo ◽  
Luiz R. Malabarba ◽  
Clarice B. Fialho
Keyword(s):  
Body Weight ◽  
Gonadosomatic Index ◽  
Total Body Weight ◽  
Reproductive Period ◽  
Day Length ◽  
Positive Correlation ◽  
Young Males ◽  
Absolute Fecundity ◽  
Fin Rays ◽  
Total Body

The reproductive period of Aphyocharax anisitsi is described through the analysis of specimens collected monthly from April 2001 to March 2002 in the arroio do Salso (3022'27"S, 5502'06"W), Rosário do Sul, Rio Grande do Sul, Brazil. The monthly variation of the Gonadosomatic Index mean (GSI) of both males and females allowed the recognition of a defined seasonal reproductive period occurring between September and February, showing a positive correlation with temperature and day-length. Absolute fecundity was 344.8 oocytes and relative fecundity 0.68 oocytes per mg of body weight. Absolute fecundity was correlated with standard length and total body weight. It was possible to identify two categories of males through the analysis of the number of rays bearing hooks on the anal fin: those with few or no rays bearing hooks identified as young males hatched in the last reproductive season, and those with a higher number of anal-fin rays bearing hooks identified as males that had already reproduced once or that are maturing and participating in their first reproductive period. Once developed, anal-fin rays are maintained permanently. A positive correlation was found between the GSI of maturing and mature males and the number of anal-fin rays bearing hooks from August to January. All specimens bearing gill glands were mature or undergoing maturation, and the frequency of occurrence of the gill glands increased with a rise of GSI.

scholarly journals Some Aspects of Reproduction in Long Whiskered Catfish, Sperata aor (Hamilton 1822), from North-East Bangladesh

2021 ◽  
Vol 21 (2) ◽  
pp. 47-54
Author(s):  
Md. Naimuddin Jabed ◽  
Mohammad Amzad Hossain ◽  
Sohel Mian ◽  
Muhammad Anamul Kabir ◽  
Sabuj Kanti Mazumder ◽  
...  
Keyword(s):  
Developmental Stages ◽  
Histological Study ◽  
Gonadosomatic Index ◽  
Morphological Characteristics ◽  
Female Fish ◽  
Histological Changes ◽  
Average Value ◽  
Absolute Fecundity ◽  
North East ◽  
One Year

Different reproductive aspects such as sexual maturity, spawning, gonadosomatic index, fecundity, and histological changes in gonads of captive reared Sperata aor were investigated for a period of one year. Male and female fish were identified by based on morphological characteristics. The spawning season was found to be extended from May-August. Gonadosomatic index reaches maximum in August and lowest in September. Absolute fecundity varied from 59255 to 70586 with an average value of 64920. Absolute fecundity had been reported to be increased with total length, body weight. Histological study of ovary of S. aor indicated the presence of four developmental stages viz, early perinucleolar s oocytes, late perinucleolar oocytes, yolk vesicle stage and yolk granular stage. Findings reveal that, S. aor has group asynchronous manner of ovarian growth and used to spawn numerous times in a year under favorable environmental conditions. The testes histology represents the presence of spermatocyte, spermatid, and spermatozoa. This species builds nests during breeding season and fries are found within the nests.

scholarly journals REPRODUCTIVE BIOLOGY OF THE SPINY EEL MACROGNATHUS PANCALUS HAMILTON, 1822 FROM UPPER ASSAM, INDIA

2020 ◽  
Vol 67 (1) ◽  
Author(s):  
S.K. Abujam ◽  
S.P. Biswas
Keyword(s):  
Sexual Dimorphism ◽  
Sex Ratio ◽  
Reproductive Biology ◽  
Body Shape ◽  
Gonadosomatic Index ◽  
Percentage Distribution ◽  
Relative Fecundity ◽  
Absolute Fecundity ◽  
Maturity Stages ◽  
Fish Samples

Reproductive biology of spiny eel Macrognathus pancalus Hamilton, 1822 was studied from the waterbodies of upper Assam, India. Sexual dimorphism was easily distinguished based on their body shape and colouration. Among the 467 fish samples examined, 312 males and 155 females were identified and the Male:Female (M:F) ratio ranged from 1:0.08 in November to 1:2.17 in June with overall sex ratio of 1:0.5. Five maturity stages were identified in a year and percentage distribution of each stage was calculated. The gonadosomatic index (GSI) ranged from 0.42 to 8.08 for females and from 0.33 to 1.25 for males. The length at 50% of the fishes attained maturity (Lm50) was 9-12 cm in males and at 12-15 cm in females, indicating males matures at moderately smaller size than their female counterparts. Ova diameter ranged from 0.3 to 1.3 mm; absolute fecundity ranged from 765.48 to 1691.96 and relative fecundity from 57.9 to 152.17. M. pancalus spawned once in a year with peak spawning between June and August.

scholarly journals Reproduction aspect of green swordtail, Xiphophorus hellerii Heckel 1848 in Tamblingan Lake, Bali

2020 ◽  
Vol 20 (1) ◽  
pp. 81
Author(s):  
I Nyoman Yoga Parawangsa ◽  
M. Fadjar Rahardjo ◽  
Charles P. H. Simanjuntak
Keyword(s):  
Body Weight ◽  
Gonadosomatic Index ◽  
Reproductive Potential ◽  
Mesh Size ◽  
Biological Information ◽  
Total Length ◽  
Xiphophorus Hellerii ◽  
Fish Samples ◽  
Spawning Time ◽  
Observation Times

Eco-biological information of green swordtail in Tamblingan Lake is unknown. This research aimed to reveal sex ratio, gonadosomatic index, viviparity, spawning time and location of green swordtail in Tamblingan Lake. Fish was collected by gill nets with a mesh size of 0.5 and 1.0 cm in five sampling stations  from January to June 2019. Total length and body weight of all fish samples were measured then dissected to observe the level of gonad maturity and viviparity in female fish. A total of 373 green swordtail with total length ranged and body weight ranged from 30.4-69.2 mm and 0.7935 – 7.6612 g, respectively. The results showed that males outnumberd of females in all sampling periods. Gonadosomatic index of male and female ranged from 0.159-1.239 and 0.204-13.592, respectively. The mature individuals were captured in all sampling stations and observation times. This species has a good reproductive potential with viviparity ranges between 6-54 juveniles.

scholarly journals Aspects of Reproductive Ecology of Chrysichthys Auratus in the Volta Lake, Ghana

2020 ◽  
Vol 3 (3) ◽  
Keyword(s):  
Reproductive Strategy ◽  
Sexual Maturity ◽  
Gonadosomatic Index ◽  
Gonad Development ◽  
Critical Length ◽  
Monthly Basis ◽  
Fish Food ◽  
Spawning Period ◽  
Volta Lake ◽  
Fish Samples

The study was conducted in 2018, on the Chrysichthys auratus in the Volta Lake, due to its socio-economic importance to the many and varied dependent fishermen, fish processors and fish traders. The objective was to determine the reproductive strategy to facilitate sustainable management of the fish stocks. A total of 452 fish samples collected on monthly basis were measured, weighed and dissected for determination of, sexual maturity, sex ratio, gonadosomatic index GSI, hepasomatic index HSI, condition factor k, visceral fat index VFI, and monthly stomach fullness in relation to sexual maturity. According to the length at first maturity determined, 89% of the female fish caught, fell below that critical length, suggesting growth overfishing, attributed to size and sex selective tendencies of bamboo pipe fishing. During gonad development, the correlation of the GSI to the HSI and the VFI was inverse and insignificant but in the post gonad development phase it switched to a positive and insignificant relationship. The point of switch, in September, was synonymous with spawning and indicative of the spawning period. It was concluded that the reproductive strategy was to time the spawning process, in September, to coincide with the upwelling phenomenon (June – September), associated with fish food abundance, thereby enhancing the survival of the offspring. A seasonal ban on fishing and a total ban on bamboo pipe fishing were recommended.

scholarly journals Fecundity and Gonadosomatic Index of Sucker Throat Catfish, Pseudecheneis sulcata (McClelland, 1842) from the Snow-fed Tamor River in Eastern Nepal

2021 ◽  
Vol 11 (2) ◽  
pp. 1-9
Author(s):  
Jash Hang Limbu ◽  
Dipak Rajbanshi ◽  
Prakash Kumar ◽  
Bharat Raj Subba
Keyword(s):  
Body Weight ◽  
Reproductive Biology ◽  
Gonadosomatic Index ◽  
Spawning Season ◽  
Stream Fish ◽  
Female Fish ◽  
Ovary Weight ◽  
Relative Fecundity ◽  
Absolute Fecundity ◽  
Total Length

In comparison to other nations, the Nepalese information on the reproductive biology of hill-stream fish is limited. So, the purpose of the present study was to provide information related to reproductive biology of a hill-stream sucker throat catfish Pseudecheneis sulcata from the snow-fed Tamor River, Nepal. The study was carried out from June 2018 to May 2019.  A total of 57 female fish was collected. The fecundity of 22 females was assessed, while the gonadosomatic index was determined using all the collected samples. The absolute fecundity ranged from 2,316 to 7,597 eggs, with an average of 3,660 ± 210. This range of absolute fecundity indicates that Pseudecheneis sulcata is a moderately fecund fish when compared to certain low fecund species and some exceptionally fecund fish with tens of thousands of eggs. Relative fecundity ranged from 65.47 to 129.11 with a mean of 88.98 ± 4.35. The present study demonstrated that absolute fecundity was moderately correlated with total length (r = 0.45) and strongly linked with body weight (r = 0.78), and ovary weight (r = 0.80). Mean gonadosomatic index (GSI) was recorded the highest in January (15.7 ± 1.22%), and showed a decrease in the subsequent month of February (10.3 ± 0.75%), March (6.25 ± 0.28%) and April (1.66 ± 0.40%). The trends of GSI might have indicated that the sucker throat catfish was a batch spawner, with spawning season occuring between January and March.

scholarly journals REPRODUCTIVE BIOLOGY OF THE MULLET LIZA FALCIPINNIS (VALENCIENNES, 1836) IN TWO AFRICAN COMPLEXS LAGOONS (EBRIÉ AND GRAND-LAHOU) (CÔTE D’IVOIRE)

2018 ◽  
Vol 6 (5) ◽  
pp. 114-127
Author(s):  
Ebram Luc Gervais ◽  
Soumaïla SYLLA ◽  
Tizié Thierry ZAN-BI ◽  
Boua Célestin ATSE
Keyword(s):  
Body Weight ◽  
Sex Ratio ◽  
Condition Factor ◽  
Gonadosomatic Index ◽  
Fork Length ◽  
Total Body Weight ◽  
Hepatosomatic Index ◽  
Spawning Period ◽  
Total Body ◽  
Monthly Variations

The reproduction of Liza falcipinnis were investigated in both lagoons (Ebrié and Grand-Lahou) from January 2006 to december 2007. 2162 specimens were examined (914 and 1248 respectively in Ebrié and Grand-Lahou lagoons). Fork length was taken to the nearest 1 mm, and total body weight (TW) and eviscerated body weight (EW) to the nearest 0.1 g. The gonads and the liver were then established removed, weighted to the nearest 0.001g. The reproduced period of Liza falcipinnis was established by analysing the temporal evolution of the frequency of the maturity stages and the monthly variations in the gonadosomatic index (GSI), the hepatosomatic index (HIS) and the condition factor (K). Sex ratio was established taking into account the sex determinations. The size at which 50 % of the specimens became mature (FL50) was estimated. The sex ratio (1:1.24) and (1:1.40) observed respectively in Ebrié and Grand-Lahou lagoons were in favour of females. The first sexual maturity size was 21.0 cm (FL) for males and 27.9 cm (FL) for females in Ebrié lagoon and 24.7 cm (FL) for males and 27.9 cm (FL) for females in Grand-Lahou lagoon. Liza falcipinnis spawns in lagoon and the spawning period ranged from December to April.

Protective Effect of Silybum marianum and Nigella sativa Oil Extracts against Cisplatin Induced Nephrotoxicity in Mice

2018 ◽  
Vol 18 (2) ◽  
pp. 171-175
Author(s):  
Ashraf A. ◽  
Hassan F. ◽  
Batool S. ◽  
Nadeem M. ◽  
Irshad M. ◽  
...  
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Petroleum Ether ◽  
Nigella Sativa ◽  
Histological Study ◽  
The Body ◽  
Cellular Damage ◽  
Elevated Blood ◽  
Silybum Marianum ◽  
Elevated Blood Glucose

The objective of present study was to analyze and compare the nephroprotective effects of petroleum ether extracts of seeds of Nigella sativa and Silybum marianum in Swiss albino mice. Petroleum ether extracts of seeds of Nigella sativa and Silybum marianum were administered (200 mg kg–1) orally for 14 days following one dose of cisplatin injection (16 mg kg–1 i.p.) on 4th day. Cisplatin toxicity was identified in mice by loss of body weight, reduced triglycerides levels, elevated blood glucose, blood urea nitrogen and creatinine levels (P < 0.05). Silybum marianum and Nigella sativa significantly enhanced the body weight (9%) of diabetic rats. Silybum marianum had significantly reduced the elevated blood glucose (–106%), and BUN levels (–9%) as compared to the Nigella sativa administration. Silybum marianum extract also significantly elevated the levels of triglycerides (257%) which were much reduced after the cisplatin injection. Histological study showed that the cisplatin treated group demonstrated the necrosis signs in the glomerulus of Bowman’s capsule, hyalinization and severe cellular damage. The animals administered with extracts showed nearly normal kidney architecture, however, the kidney tissues of Silybum marianum-treated animals showed some improvement with slight signs of cellular damages.

scholarly journals Response of Clarias gariepinus to Allium sativum-based diet on growth performance and Staphylococcus aureus challenge infection

2020 ◽  
Vol 24 (5) ◽  
pp. 755-759
Author(s):  
A.A. Nwabueze ◽  
J.K. Ekelemu ◽  
O.A. Owe
Keyword(s):  
Staphylococcus Aureus ◽  
Body Weight ◽  
Growth Performance ◽  
Allium Sativum ◽  
Clarias Gariepinus ◽  
Challenge Infection ◽  
Fish Growth ◽  
Fish Diet ◽  
Feed Conversion ◽  
Fish Samples

The response of Clarias gariepinus to Allium sativum on growth performance and as anti-bacterial agent in Staphylococcus aureus challenge infection was evaluated. A. sativum was included at 0% (control), 1.5%, 3.0%, and 4.5% in fish diet. Twenty fish samples each were randomly distributed into four tanks (T1, T2, T3 and T4). Fish were fed twice daily at 5% body weight for twelve weeks. All fish were challenged with 0.5ml of pure culture of S. aureus. A significant (P<0.05) increase in body weight, total length and standard length was observed. A. sativum at 3.0% inclusion promoted highest growth with feed conversion ratio (1.25-1.41), protein efficiency ratio (1.72-0.56), specific growth rate (1.92-2.09), condition factor (0.83-1.99) and survival rate (60-95). Fish-fed A. sativum diet showed that 4.5% inclusion had the least S. aureus activity. Bacteria load significantly (P<0.05) decrease at week 12. Culture water had dissolved oxygen of 4.0 - 4.2 mg/L, pH 6.0 - 7.0 and temperature of 26.0-28.0oC. This study has shown that A. sativum supplemented diets enhanced growth of C. gariepinus and functioned as antibacterial agent against S. aureus. A. sativum at 3.0% inclusion in diet is recommended for better fish growth and 4.5% A. sativum for antibacterial action. Keywords: Fish, herb, growth, infection

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