An Economic Assessment of Fish and Prawn Health Management in Andhra Pradesh

Viswanatha, B. S.; Bhatta, Ramachandra; Shankar, K. M.

doi:10.5958/j.0974-0279.27.1.007

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Ectoparasitic diseases account for 70% of the problems, while bacterial and fungal diseases account for 27.5% and 2.5% problems, respectively (Rao et al, 1992). Considering the fish and prawn health management in Andhra Pradesh the losses have been found high due to disease than due to environmental factors (Viswanatha et al, 2014). In case of low aquatic environmental temperature fish reduces metabolic activities, which in turn makes the fish more susceptible during the winter period towards parasitic infection (Hossain et al, 2013).…”

Section: Types Of Fish Diseases and Causing Organismsmentioning

confidence: 99%

Effect of temperature variation on disease proliferation of common fishes in perspective of climate change

Mallick¹,

Panigrahi²

2018

IJERR

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Meteorological variations and global warming frequently produce serious losses in fishing stocks and fish production. The rate of fish production depends on climatic variation and demand more prudent management of natural sources, attention to technological action and more specific knowledge of the fish and the emergent pathogens. Temperature affects the development of parasites and pathogenic bacteria and may also have effects on the resistance of fish to disease. Certain environmental conditions are considered door openers to opportunistic pathogens and important initiators of stress. Global warming and worsening of other environmental parameters causes an alteration of the immune-response, with a reduction in the resistance of fish and increases the occurrence of various diseases of fish. Climate change cans increase pathogen development and survival rates, disease transmission, and host susceptibility. Disease in fishes is caused by the infection of various types of bacteria, viruses and fungi. This type of disease has been noticed in many states of India.

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Section: Types Of Fish Diseases and Causing Organismsmentioning

confidence: 99%

Effect of temperature variation on disease proliferation of common fishes in perspective of climate change

Mallick¹,

Panigrahi²

2018

IJERR

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“…(Sharshar & Azab, ). All these diseases have been reported to cause severe economic and production loss over the past few years (Ahamed et al, ; Alam, Pokrant, Yakupitiyage, & Phillips, ; Faruk, Sarker, Alam, & Kabir, ; Paul & Vogl, ; Viswanatha, Bhatta, & Shankar, ). Sometimes, apparently healthy prawns are also reported to become infected to their shell by Vibrio, Pseudomonas , and Aeromonas spp .…”

Section: Introductionmentioning

confidence: 99%

Effect of probiotics on immune competence of giant freshwater prawnMacrobrachium rosenbergii

et al. 2018

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This study evaluates the effect of probiotics, Zymetin, on the immune efficiency of Macrobrachium rosenbergii juvenile against pathogenic Vibrio spp. and Aeromonas spp. The experiment was conducted in glass aquaria with same level of feeding under different treatments, that is, negative control (Cn), positive control with Vibrio spp. (Cv) and Aeromonas spp. (Ca), prawn juveniles fed with probiotics (Zymetin) at 5 g/kg of feed but without pathogen (T1), probiotic fed prawn challenged with Vibrio spp. (T2) and Aeromonas spp. (T3). The results demonstrated that T1 showed higher survival rate, total haemocyte count, non-granular haemocyte count, phagocytic activity, and clearance efficiency compared to other treatment groups. In contrast, decreased number of small and large granular haemocyte was observed in T1.Despite that, THC was found to be significantly different (p < 0.05) among all the controls and lowest was in Cv, followed by Ca. Besides, phagocytic activity and clearance efficiency against Vibrio spp. and Aeromonas spp. decreased significantly in Cn, Ca, and Cv fed M. rosenbergii juvenile, while the values were found to be higher in T1 followed by T2 and T3, in that order. In addition, the challenge test showed an increasing trend of total and beneficial bacterial density as well as declining trend of some harmful bacteria in the water and gut of prawn in all the groups tested (p < 0.05). K E Y W O R D Sclearance efficiency, Macrobrachium rosenbergii, phagocytic activity, probiotics wileyonlinelibrary.com/journal/are Aquaculture Research. 2019;50:644-657. 2 | MATERIALS AND METHODS 2.1 | Pathogen isolation, culture, and biochemical confirmation Before conducting the challenge test, the pathogenic bacteria (i.e., Vibrio spp. and Aeromonas spp.) were isolated from four diseased prawns which displayed typical symptoms of inactivity, poor growth leading to weight loss, anorexia, and frequent mortality. All the diseased GFP were collected from the farmer's pond of Dumuria, Khulna, Bangladesh. Infected prawns were brought to the Fish Pathology Laboratory of Fisheries and Marine Resource Technology AZAD ET AL.| 645

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Antiparasitic effect of aqueous and organic solvent extracts of Azadirachta indica leaf against Argulus japonicus in Carassius auratus

et al. 2019

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An Economic Assessment of Fish and Prawn Health Management in Andhra Pradesh

Cited by 4 publications

References 3 publications

Effect of temperature variation on disease proliferation of common fishes in perspective of climate change

Effect of temperature variation on disease proliferation of common fishes in perspective of climate change

Effect of probiotics on immune competence of giant freshwater prawnMacrobrachium rosenbergii

Antiparasitic effect of aqueous and organic solvent extracts of Azadirachta indica leaf against Argulus japonicus in Carassius auratus

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