scholarly journals Effect of feeding frequency on growth, feed utilisation and cannibalism in climbing perch Anabas testudineus (Bloch 1792) fry

2019 ◽  
Vol 66 (1) ◽  
Author(s):  
Lipsha Dash ◽  
Rajesh Kumar ◽  
K.N. Mohanta ◽  
U.L. Mohanty ◽  
Bindu R. Pillai ◽  
...  
Keyword(s):  
Feeding Frequency ◽  
Anabas Testudineus ◽  
Climbing Perch ◽  
Survival Percentage ◽  
Feed Utilisation ◽  
Cannibalism Rate ◽  
Pellet Feed ◽  
Weight Gain Percentage ◽  
Effect Of Feeding ◽  
The Ideal

A 35 days experiment was conducted to study the effect of different feeding frequencies on growth and feed utilisation in climbing perch Anabas testudineus (Bloch 1792) fry. Four different feeding frequencies in triplicate viz., 2 (T1), 3 (T2), 4 (T3) and 5 (T4) times a day were evaluated. Fry (144 nos.) of climbing perch were randomly distributed in 12 glass aquaria (50 l) containing 25 l of filtered and well aerated freshwater. Formulated pellet feed was prepared and fed @ 6% body weight to all the experimental groups at different feeding frequencies as mentioned above. At the end of the experiment, fishes were sampled to determine weight gain percentage (WG %), specific growth rate (SGR), food conversion ratio (FCR), protein efficiency ratio (PER), survival percentage (%) and partial cannibalism rate (%). Results revealed that the WG% (112.80±2.25), PER (1.65±0.03) and SGR (2.15±0.03) were significantly higher (p<0.05) in T3 group. FCR (1.55±0.03) was lowest in T3 group. Partial cannibalism rate (%) was significantly higher (p<0.05) in the treatment group T1 (6.33±0.88) whereas the survival rate (%) was lowest in T1 (91.66±4.81). The results therefore, indicated that feeding frequency of 4 times a day (T3) could be the ideal feeding frequency for better growth and feed utilisation during fry rearing of climbing perch.

scholarly journals The effect of feeding frequency and meal size on amounts of total and parotid saliva secreted by sheep

1990 ◽  
Vol 63 (2) ◽  
pp. 305-318 ◽  
Author(s):  
Richard R. Carter ◽  
O. Brian Allen ◽  
W. Larry Grovum
Keyword(s):  
Dry Matter ◽  
Feeding Frequency ◽  
Parotid Saliva ◽  
Fixed Amount ◽  
Sham Feeding ◽  
Time Period ◽  
Production Response ◽  
Stem Leaf ◽  
Effect Of Feeding ◽  
Saliva Production

Total and unilateral parotid saliva production during eating were measured in response to offering sheep a fixed amount of lucerne (Medicago sativa) hay as one, two, four or eight meals. Total saliva measurements were obtained using sham-fed oesophageal-fistulated sheep. Unilateral parotid saliva was collected from sheep fitted with reversible re-entrant cannulas. Dry matter intakes and eating times were measured for each meal but were not constrained to particular values. Total and unilateral parotid saliva production during eating increased linearly with the log of the number of meals (p = 0.0001). The amounts corresponding to one, two, four and eight meals of lucerne hay were 1553, 1737, 1851 and 2087 ml during total collections and 209, 248, 307 and 352 ml during unilateral parotid collections. The time-period spent eating and the amount of food consumed both increased as meal number increased. Total saliva collections when lucerne hay was sham-fed as one, two, four or eight meals were associated with eating times of 56.9, 57.4, 70.8 and 86.0 min and intakes of 562, 622, 629 and 638 g dry matter respectively. For unilateral parotid collections, eating times and dry matter intakes were 64.2, 71.3, 78.0, 82.1 min and 515, 579, 614 and 627 g for one, two, four and eight meals of lucerne hay respectively. The saliva production response appeared to be determined through the effects of the time-period spent eating and amounts consumed, but other undetermined effects of feeding frequency contributed to the response. The importance of meal duration on total saliva production was assessed by sham-feeding of 800 g lucerne as stem, leaf, hay, chopped hay or ground and pelleted hay. Increasing meal duration by feeding with stems resulted in the production of 1808 ml saliva, whereas the rapid consumption of pellets resulted in only 442 ml being produced.

scholarly journals Isolation and characterization of two virulent Aeromonads associated with haemorrhagic septicaemia and tail-rot disease in farmed climbing perch Anabas testudineus

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abhishek Mazumder ◽  
Hrishikesh Choudhury ◽  
Abhinit Dey ◽  
Dandadhar Sarma
Keyword(s):  
Natural Infection ◽  
Winter Season ◽  
Pcr Amplification ◽  
Body Parts ◽  
Anabas Testudineus ◽  
Climbing Perch ◽  
Isolation And Characterization ◽  
Biochemical Characterisation ◽  
Rot Disease

AbstractDiseased Anabas testudineus exhibiting signs of tail-rot and ulcerations on body were collected from a fish farm in Assam, India during the winter season (November 2018 to January 2019). Swabs from the infected body parts were streaked on sterilized nutrient agar. Two dominant bacterial colonies were obtained, which were then isolated and labelled as AM-31 and AM-05. Standard biochemical characterisation and 16S rRNA and rpoB gene sequencing identified AM-31 isolate as Aeromonas hydrophila and AM-05 as Aeromonas jandaei. Symptoms similar to that of natural infection were observed on re-infecting both bacteria to disease-free A. testudineus, which confirmed their virulence. LC50 was determined at 1.3 × 104 (A. hydrophila) and 2.5 × 104 (A. jandaei) CFU per fish in intraperitoneal injection. Further, PCR amplification of specific genes responsible for virulence (aerolysin and enterotoxin) confirmed pathogenicity of both bacteria. Histopathology of kidney and liver in the experimentally-infected fishes revealed haemorrhage, tubular degeneration and vacuolation. Antibiotic profiles were also assessed for both bacteria. To the best of our knowledge, the present work is a first report on the mortality of farmed climbing perch naturally-infected by A. hydrophila as well as A. jandaei, with no records of pathogenicity of the latter in this fish.

scholarly journals Pengaruh C/N Rasio Berbeda untuk Pembentukan Bioflok pada Media Pemeliharaan terhadap Pertumbuhan dan Kelangsungan Hidup Benih Ikan Betok (Anabas testudineus)

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Indra Wahyu Pratama ◽  
Dade Jubaedah ◽  
Mohamad Amin
Keyword(s):  
Survival Rate ◽  
Culture Media ◽  
Farming System ◽  
Anabas Testudineus ◽  
Growth And Survival ◽  
Climbing Perch ◽  
Randomized Design ◽  
Absolute Growth ◽  
Biofloc Technology ◽  
Absolute Length

Pratama et al, 2018. The Effect of Different C/N Ratio in for Biofloc of Formation Culture Media to the Growth and Survival Rate of Juvenile Climbing Perch (Anabas testudineus). JLSO 7(1): Climbing perch fish resources still have a problem due to this fish is still obtained only through capture and also the growth of climbing perch fish is slow. The solutions to increase the growth of the climbing perch fish is by applying biofloc technology for climbing perch fish culture. The purpose of this research was to know the effect of different C/N ratio on the growth of climbing perch fish (Anabas testudineus) juvenille with biofloc farming system. This research used a completely randomized design consist of four treatments and three replications. The treatments were without molase (P0), molase with C/N ratio 15 (P1), C/N 20 (P2) and C/N ratio 25 (P3). The results showed that C / N ratio 20 was the best treatment with absolute length of growth of 1.33 cm, absolute growth of weight 1.92 g, survival rate of 99.17% and feed efficiency 138.06%.

scholarly journals Effects of Water Salinity on the Egg Hatching, Growth, and Survival of Larvae and Fingerlings of Climbing Perch, Anabas testudineus

2019 ◽  
Vol 64 (2) ◽  
pp. 281-286
Author(s):  
Thumronk AMORNSAKUN ◽  
Sajeenuth SRITHONGTHUM ◽  
Ponpanom PROMKAEW ◽  
bin HASSAN ◽  
Hajime MATSUBARA ◽  
...  
Keyword(s):  
Water Salinity ◽  
Egg Hatching ◽  
Anabas Testudineus ◽  
Growth And Survival ◽  
Climbing Perch

scholarly journals SOME TRENDS IN FRESHWATER TROPICAL AQUACULTURE AND THEIR IMPACT ON STUDIES OF THE CLIMBING PERCH ANABAS TESTUDINEUS (ANABANTIDAE) REPRODUCTIVE BIOLOGY

Fisheries ◽  
2020 ◽  
Vol 2020 (4) ◽  
pp. 85-89
Author(s):  
Dmitry Zworykin
Keyword(s):  
Reproductive Biology ◽  
Fish Species ◽  
Applied Research ◽  
Tropical Fish ◽  
Native Fish ◽  
Turn Of The Millennium ◽  
Anabas Testudineus ◽  
Climbing Perch ◽  
Contemporary Science ◽  
Tropical Aquaculture

The dynamics of publication activities devoted to the climbing perch from 1969 to 2018 is analyzed. It is shown that sharp increases in the number of publications at the turn of the millennium coincide with changes in international and national strategies for tropical fish aquaculture, focusing on cultivation of fast-growing native fish species and small farms support. These programs have led to a surge in applied research and publications on the climbing perch, as one of the most promising species. Unfortunately, some of these papers have been published in journals that are unreliable according to the criteria of contemporary science and contain controversial conclusions. Certain consequences of these trends are noted and challenges outlined.

Effect of Feeding Frequency on Growth and Survival Rate of Clarias gariepinus Fingerlings Reared in Plastic Bowls

2014 ◽  
Vol 9 (5) ◽  
pp. 425-429 ◽  
Author(s):  
F.P. Asuwaju ◽  
V.O. Onyeche ◽  
K.E. Ogbuebunu ◽  
H.F. Moradun ◽  
E.A. Robert
Keyword(s):  
Survival Rate ◽  
Clarias Gariepinus ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Effect Of Feeding
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