scholarly journals Development of Induced Breeding Technique for Freshwater Fish Gobi, Glossogobius giuris (Hamilton, 1822) Using Pituitary Gland (PG) Extract

2021 ◽  
pp. 24-35
Author(s):  
Selina Yeasmine ◽  
M. Aminur Rahman ◽  
Md. Sarower-E-Mahfuj ◽  
Sonia Sku ◽  
Md. Nazmul Hossen ◽  
...  
Keyword(s):  
Body Weight ◽  
Pituitary Gland ◽  
Freshwater Fish ◽  
Large Scale ◽  
Scale Production ◽  
Male Fish ◽  
Breeding Technique ◽  
Hatching Time ◽  
Glossogobius Giuris ◽  
Hatching Rates

This study aimed to establish induced breeding technique of freshwater fish gobi (Glossogobius giuris), using the pituitary gland (PG) extract. Six experiments were conducted at the Department of Fisheries Biology and Genetics, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh, Bangladesh. First breeding trial was conducted in June using 40, 45, and 50 mg PG kg-1 body weight of the female fish. None of the fish was ovulated in the 1st trial. Two more breeding trials were conducted in July and August, using 6 mg (T1), 8 mg (T2) and 10 mg (T3) PG kg-1 body weight of female, and 3 mg (T4), 4 mg (T5) and 5 mg (T6) PG kg-1 body weight of male fish. After treatment, the ovulation rates were recorded as 56.33±1.53, 82.67±2.52 and 75.33±1.53% in July and 58.00±2.65, 94.67±1.53 and 78.33±1.53% in August under the treatments T1, T2 and T3, respectively. Hatching rates of eggs were observed as 52.00±4.36, 81.67±3.21 and 72.33±6.03% in July, and 54.67±3.23, 91.67±3.06 and 73.67±5.13% in August under the T1, T2 and T3, respectively. Hatching time was ranged from 35 to 48 h and after the absorption of yolk sac (60-72 h), they were survived well when fed with tubificid worms and mixed zooplankton. The female treated with the dose of 8 mg PG kg-1 body weight in August showed the best performance so far as the ovulation, fertilization and hatching rates were concerned, while the single dose of 4 mg kg-1 body weight of PG was found to be effective for male fish in both months. The findings obtained from the present study reveals that induced breeding of G. giuris, using PG extract is successful for large scale production of quality seed in captive condition, which would further facilitate towards the aquaculture production and biodiversity conservation of this important fish species to a greater extent.

scholarly journals Induced breeding of endangered spiny eel (Mastacembelus armatus) using PG extract

2018 ◽  
Vol 29 (3) ◽  
pp. 267-275
Author(s):  
MR Ali ◽  
MFA Mollah ◽  
MRI Sarder
Keyword(s):  
Body Weight ◽  
Divided Dose ◽  
Ovulation Rate ◽  
Endangered Fish ◽  
Breeding Technique ◽  
Hormone Injection ◽  
Significant Difference ◽  
Mastacembelus Armatus ◽  
Different Doses ◽  
Hatching Rates

Mastacembelus armatus is an important freshwater spiny eel of Bangladesh. The experiment was initiated to establish an induced breeding technique of the species with two induced breeding trials. In trial I, four different doses viz. 20, 40, 60 and 80mg PGkg-1 body weight of the fish were used to standardize the PG dose to ovulate the female M. armatus, and in trial II, the best dose identified in trial I was injected to fish once (whole dose) or twice with divided dose of PG at the rate of 30% and 70% at 6h interval to observe the effect of the mode of hormonal injection. Among the four doses applied in trial I, best result was obtained from 40mg PGkg-1 body weight in respect of ovulation rate (100%) of females and fertilization (93.00±2.00%) and hatching rates (58.30±3.50%) of eggs. In trial II, the females treated once (with the whole dose) or twice with divided dose of PG equally responded and no significant difference (p>0.05) was observed between the modes of hormone injection in respect of ovulation rate of females and fertilization and hatching rates of eggs. As M. armatus is considered as endangered fish, this induced breeding technique will help to conserve the fish as well as to produce seed in commercial hatcheries. Progressive Agriculture 29 (3): 267-275, 2018

scholarly journals Induced breeding of the riverine catfish Rita rita

1970 ◽  
Vol 6 (2) ◽  
pp. 361-366
Author(s):  
MFA Molla ◽  
MR Amin ◽  
MN Sarowar ◽  
M Muhammadullah
Keyword(s):  
Body Weight ◽  
Pituitary Gland ◽  
Fertilization Rate ◽  
Hatching Rate ◽  
Induction Of Ovulation ◽  
Successful Induction ◽  
Hatching Rates

The paper reports the first incidence of successful induction of breeding in the riverine catfish Rita rita using carp pituitary gland (PG) extract. A breeding trial using four PG doses viz. 80, 100, 120 and 140mg/kg body weight of fish was conducted to optimize the dose of pituitary gland (PG) extract in terms of induction of ovulation in female. The male received a dose of 40mg PG/kg body weight in all cases and was sacrificed for collection of milt. The best performance was shown by the fish treated with 100mg PG/kg body weight in respect of inducing ovulation in females and fertilization and hatching rates of eggs. Keywords: Induced breeding; Rita rita; Ovulation; Fertilization rate; Hatching rate DOI: 10.3329/jbau.v6i2.4835 J. Bangladesh Agril. Univ. 6(2): 361-366, 2008

scholarly journals Fecundity and gonadosomatic index of Glossogobius giuris (Hamilton, 1822) from the Payra River, Patuakhali, Bangladesh

2014 ◽  
Vol 2 (2) ◽  
pp. 141 ◽  
Author(s):  
Animesh Roy ◽  
Md. Shakhawate Hossain ◽  
Mohammad Lutfar Rahman ◽  
Mohammad Abdus Salam ◽  
Mir Mohammad Ali
Keyword(s):  
Body Weight ◽  
Gonadosomatic Index ◽  
Fish Population ◽  
Mean Value ◽  
Gonad Weight ◽  
Weight Relationship ◽  
Total Length ◽  
Breeding Technique ◽  
The Mean ◽  
Glossogobius Giuris

Glossogobius giuris were collected during March to September 2013 from the Payra river to estimate the length-weight relationship with relative condition factor (Kn), fecundity, gonadosomatic index (GSI) and relation between fecundity and other parameters. The length-weight relationship was found to be Log W= 2.667 Log TL – 1.805 in male and Log W = 2.931 Log TL – 2.040 in female. The mean Kn were found to be 1.02±0.155 for male and 0.97±0.276 for female which indicates satisfactory condition of the fish population. The mean relative fecundity was ranged from 88495 to 264104 with a mean value of 171581±17855, having a average total length of 21.21±0.44 cm, body weight 70.22±4.62 g and gonad weight 2.74±0.31 g. The relationships among the fecundity, the total length, body weight, gonad weight were found to be linear and positively correlated. The mean GSI value was 3.42±0.33 and the highest GSI value was recorded 9.34±0.71 in the month of September. This study will help to introduce this species in sustainable aquaculture through proper management and for the development of induced breeding technique.

scholarly journals Effect of pituitary gland doses on induced breeding of Crucian Carp, Carassius carassius

2016 ◽  
Vol 13 (1) ◽  
pp. 137-144
Author(s):  
MS Ali ◽  
MGS Riar ◽  
MF Siddique ◽  
Y Mahmud
Keyword(s):  
Single Dose ◽  
Pituitary Gland ◽  
Large Scale ◽  
Crucian Carp ◽  
Optimum Dose ◽  
Carassius Carassius ◽  
Double Dose ◽  
Female Fish ◽  
Crucian Carp Carassius Carassius ◽  
Hatching Rates

Induced breeding of crucian carp, Carassius carassius was conducted in order to determine the optimum dose of pituitary gland (PG) hormone. The research was done at the hatchery of the Freshwater Station, Bangladesh Fisheries Research Institute, Mymensingh. The study was consisted of four different doses of PG treatments (T1, T2, T3 and T4) with three replications of each. In the experiment single dose was used for T1 while double dose used for T2, T3 and T4 to evaluate the efficiency of PG hormone on ovulation, fertilization and hatching rates of C. carassius eggs. Single dose of 6.0 mg PG kg-1 body weight (bw) of female fish had no ovulatory response. The double dose in case of female fish in T2 at the rate of 6.0 mg PG kg-1 bw (1st dose 1.0 and 2nd dose 5.0 mg PG kg-1 bw at 6 h interval) and 2.0 mg PG kg-1 bw of male fish (single dose during the time of 2nd injection of female) in January showed better results in terms of ovulation (96.52±1.53%), fertilization (90.35±1.67%) and hatching rates (78.65±2.84%) compared to other treatments. Considering ovulation, fertilization and hatching rates the double dose of 6.0 mg PG kg-1 bw of female and single dose of 2.0 mg PG kg-1 bw of male can be used in induced breeding of C. carassius during January. The findings of this study indicated that induced breeding of C. Carassius is successful through PG extract and might be useful for large scale seed production in the hatchery operation.J. Bangladesh Agril. Univ. 13(1): 137-144, June 2015

scholarly journals Effect of Pituitary Gland (PG) Doses on Artificial Propagation of Endangered Tarabaim, Macrognathus aculeatus (Bloch)

2013 ◽  
Vol 19 (2) ◽  
pp. 111-118
Author(s):  
SM Farid ◽  
MI Miah ◽  
MAB Habib ◽  
MM Rahman
Keyword(s):  
Body Weight ◽  
Pituitary Gland ◽  
Fertilization Rate ◽  
Ovulation Rate ◽  
Hatching Rate ◽  
Artificial Propagation ◽  
Macrognathus Aculeatus ◽  
Hatching Rates

Five hormone doses viz., 40, 60, 70, 85 and 90 mg of Pituitary gland (PG)/kg body endangered Tarabaim (Macrognathus aculeatus) were tested and they were designated as Treatments T1, T2, T3, T4 and T5, respectively. Significantly (p<0.05) higher fertilization (86%) and hatching rates (50%) were obtained from T5 (90 mg of PG extract/kg body weight) than those of other treatments. However, T4 (85 mg of PG extract/kg, body weight) and T3 (70 mg of PG extract/kg body weight) gave the highest (90%) ovulation rate. In May and June, the highest fertilization rate of 82% and 86% respectively and hatching rate 45% and 75%, respectively were obtained at the temperature ranged from 27.0 to 33.0ºC. In conclusion, PG extract at a dose of 90 mg/kg body weight appeared to be the suitable dose for artificial propagation of M. aculeatus, May and June are the suitable months for its artificial propagation.DOI: http://dx.doi.org/10.3329/pa.v19i2.16951 Progress. Agric. 19(2): 111 - 118, 2008

scholarly journals Comparative Study of Carp Pituitary Gland (PG) Extract and Synthetic Hormone Ovaprim Used in the Induced Breeding of Stinging Catfish, Heteropneustes fossilis (Siluriformes: Heteropneustidae)

Our Nature ◽  
2013 ◽  
Vol 10 (1) ◽  
pp. 89-95 ◽  
Author(s):  
Md. Belal Hossain ◽  
Md. Mosaddequr Rahman ◽  
Md. Golam Sarwer ◽  
Md. Yusuf Ali ◽  
Ferdous Ahamed ◽  
...  
Keyword(s):  
Body Weight ◽  
Pituitary Gland ◽  
Incubation Period ◽  
Latency Period ◽  
Hatching Rate ◽  
Heteropneustes Fossilis ◽  
Gland Extract ◽  
Treated Fish ◽  
Spawning Success ◽  
Hatching Rates

The present study compared the effectiveness of the Carp pituitary gland extract (PGE) and the synthetic hormone Ovaprim on spawning success of the stinging catfish, Heteropneustes fossilis during induced breeding. The PGE hormone was administered at 6 mg/kg of body weight for females and 2 mg/kg of body weight for males. In contrast, Ovaprim was administered at 0.3 ml/kg body weight and 0.1 ml/kg of body weight for females and males, respectively. The spawning success was higher in the Ovaprim-induced individuals with better performance recorded at all stages of spawning including latency period, ovulation, fertilization, hatching and incubation period compared to the PGE-induced individuals. In the Ovaprim induced individuals, the latency period occurred within 10 hours while in PG-induced individuals, the latency was after 15 hours. Similarly, ovulation rate was 90% for Ovaprim injected fish but lower 78.7% for PGE injected fish. Higher rate of fertilization was observed in the eggs of Ovaprim treated fishes 86.7% compared to 69.2% in PGE induced fish. On the other hand, hatching rate was 76.9% in eggs spawned from Ovaprim induced individuals compared to 72.7% in PGE induced fish and the incubation period was also shorter at 3.5 h for eggs from Ovaprim-induced fish while the PGE induced fish eggs required a 5-h incubation period. Finally, the results showed that Ovaprim treated fish yielded better results compared the PGE treated fish in terms of ovulation, fertilization and hatching rates of H. fossilis.DOI: http://dx.doi.org/10.3126/on.v10i1.7755 

Single and repeated testing of growth hormone secretory capacity in hypopituitarism using growth hormone releasing factor

1986 ◽  
Vol 113 (4_Suppl) ◽  
pp. S118-S122 ◽  
Author(s):  
O. BUTENANDT ◽  
M. EMMLINGER ◽  
H. DOERR
Keyword(s):  
Growth Hormone ◽  
Body Weight ◽  
Pituitary Gland ◽  
Bolus Injection ◽  
Hormone Deficiency ◽  
Test Results ◽  
Repeated Testing ◽  
Plasma Growth Hormone ◽  
Once Daily ◽  
Secretory Capacity

Abstract 38 patients with proven growth hormone deficiency (GHD) and 19 children with familial short stature received an iv GRF-bolus injection of 1 ug/kg body weight. Whereas in all control children plasma growth hormone rose significantly (mean of maximal values 36 ng/ml), only 7 out of 38 patients with GHD reached peak values of 8 ng/ml or more. GRF-priming by 1 ug GRF/kg BW given once daily s.c. for 5 days in 19 patients improved the response of the pituitary gland in 11. Thus, following the first GRF test, only 21 % of patients demonstrated function of the pituitary gland whereas 45 % did so when all test results are combined. To evaluate the pituitary function in patients with GHD correctly, GRF tests following a GRF priming period seems to be necessary to reactivate atrophic somatotropic cells of the pituitary gland.

AGRICULTURAL PRODUCTION OF CA DONG PEOPLE IN RESETTLEMENT AREA OF TRANH RIVER HYDROPOWER NUMBER 2: CURRENT SITUATION AND IMPACT FACTORS

2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Bùi Thị Bích Lan
Keyword(s):  
Social Relations ◽  
Agricultural Production ◽  
Large Scale ◽  
Transition Process ◽  
Impact Factors ◽  
Small Scale ◽  
Scale Production ◽  
Technical Application ◽  
Production Models ◽  
Role Of The State

In Vietnam, the construction of hydropower projects has contributed significantly in the cause of industrialization and modernization of the country. The place where hydropower projects are built is mostly inhabited by ethnic minorities - communities that rely primarily on land, a very important source of livelihood security. In the context of the lack of common productive land in resettlement areas, the orientation for agricultural production is to promote indigenous knowledge combined with increasing scientific and technical application; shifting from small-scale production practices to large-scale commodity production. However, the research results of this article show that many obstacles in the transition process are being posed such as limitations on natural resources, traditional production thinking or the suitability and effectiveness of scientific - technical application models. When agricultural production does not ensure food security, a number of implications for people’s lives are increasingly evident, such as poverty, preserving cultural identity, social relations and resource protection. Since then, it has set the role of the State in researching and building appropriate agricultural production models to exploit local strengths and ensure sustainability.

I. S. A. Baud. Forms of Production and Women's Labour: Gender Aspects of Industrialisation in India and Mexico. New Delhi: Sage Publications. 1992. 321 pp.Hardbound. Price: Indian Rs 295.00.

1993 ◽  
Vol 32 (1) ◽  
pp. 129-131
Author(s):  
Naureen Talha
Keyword(s):  
Large Scale ◽  
Indian Society ◽  
New Delhi ◽  
Scale Production ◽  
Female Labour ◽  
Self Employment ◽  
Commodity Production ◽  
Large Scale Production ◽  
Mexican Society ◽  
Small Production

The literature on female labour in Third World countries has become quite extensive. India, being comparatively more advanced industrially, and in view of its size and population, presents a pictures of multiplicity of problems which face the female labour market. However, the author has also included Mexico in this analytical study. It is interesting to see the characteristics of developing industrialisation in two different societies: the Indian society, which is conservative, and the Mexican society, which is progressive. In the first chapter of the book, the author explains that he is not concerned with the process of industrialisation and female labour employed at different levels of work, but that he is interested in forms of production and women's employment in large-scale production, petty commodity production, marginal small production, and self-employment in the informal sector. It is only by analysis of these forms that the picture of females having a lower status is understood in its social and political setting.

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