Haematological, Histological and Growth Characteristics of Oreochromis 
 mossambicus Exposed to Effective Microorganisms in Organically Manured Aquadams

Rapatsa, Mmaditshaba M.; Moyo, N.A.G.

doi:10.3923/ajava.2013.852.862

Cited by 7 publications

(7 citation statements)

References 9 publications

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“…Leucopoenia or leucocytosis are pathological conditions associated with abnormal leucocyte count indicating the possibility of alteration in immune function of the individual (De Pedro et al, 2005). A response of the cellular immune system to infection or treatments manifests as an increase in WBC count (Rapatsa & Moyo, 2013). Fazio et al (2013) presented data on the mean WBC count for several species of fish, ranging from 0.94±0.14 × 10 9 /L for Gobius niger to 4.74±0.9 × 10 9 /L for Sparus aurata.…”

Section: Influence Of Pawpaw Seed Meal On Haematological Parametersmentioning

confidence: 99%

“…Abnormal decreases in RBC, HGB, PCV and erythrocyte indices (MCV, MCH and MCHC) indicates anaemia (De Pedro et al, 2005) while decreased WBC means reduced disease fighting capacity of the fish (Rapatsa & Moyo, 2013). It has been suggested that xenobiotic treatments that result in the increase of these blood parameters are associated with an improved immune system functioning, compared to treatments that result in their decrease, which are associated with a compromised immune response (Anene et al, 2015).…”

Section: Influence Of Pawpaw Seed Meal On Haematological Parametersmentioning

confidence: 99%

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Hepatic and Haemato-biochemical Alterations in Juvenile Mozambique tilapia (Oreochromis mossambicus) on Pawpaw (Carica papaya) Seed Meal

Omeje¹,

Lambrechts²,

Brink³

2019

JAS

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Pawpaw seed meal (PSM) can be used as an antifertility agent in animals, however there is no information on its potential toxicological effect on Mozambique tilapia (O. mossambicus). In this study the effect of PSM on the liver, blood haematological and biochemical parameters of O. mossambicus juveniles was assessed to ascertain its suitability as a reproductive suppressant. The PSM was administered at an inclusion level of 10 g and 30 g/kg of a commercial tilapia diet (basal diet, BD) for 30 and 60 days, respectively. The potential toxicological effect was assessed by determining the extent of change in the normal haematological (RBC count, haematocrit, haemoglobin, MCV, MCH, MCHC, thrombocyte count, absolute WBC and differential cell counts) and biochemical (cholesterol, total protein, albumin, globulin and glucose) parameters. Haematological and biochemical profiles of different treatment groups did not differ throughout the course of the investigation. Liver weight and hepatosomatic index values of the treated fish were comparable to those of the control. The absence of any effect of the blood parameters measured in this study also indicate that PSM has no compromising influence on the immune system of the fish, indicating that PSM can be considered as a safe alternative to induce masculinization in Mozambique tilapia, and therefore act as a reproductive inhibitor.

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Section: Influence Of Pawpaw Seed Meal On Haematological Parametersmentioning

confidence: 99%

Section: Influence Of Pawpaw Seed Meal On Haematological Parametersmentioning

confidence: 99%

Hepatic and Haemato-biochemical Alterations in Juvenile Mozambique tilapia (Oreochromis mossambicus) on Pawpaw (Carica papaya) Seed Meal

Omeje¹,

Lambrechts²,

Brink³

2019

JAS

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“…While, Omeje (2016) had results which indicated insignificant effect of PSM on the WBC count in O. mossambicus. Decreased in WBC means reduction in the disease fighting capacity of the fish (Rapatsa & Moyo 2013). While, Vázquez & Guerrero, (2007) had stated that thrombocytes (platelets) plays key role in blood clotting, Omeje (2016) concluded that, xenobiotic treatments that result in the increase of these blood parameters are associated with an improved immune system functioning, compared to treatments that result in their decrease, which are associated with a compromised immune.…”

Section: Discussionmentioning

confidence: 99%

Haematology and gonad histology of Oreochromis niloticus (Linnaeus, 1758) fed Carica papaya seed meal

Okomoda¹

2017

Braz. J. Aquat. Sci. Technol.

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-1 ) for 28days in fifteen aquarium tanks (30×30×20cm 3 ). Resultant fingerlings were maintained in outdoor concrete tanks (1×1×1m 3 ) for 140days till they gained an average weight of 30g. Haematological analysis and gonad histology was done to determent the effect of the PSM on the fish. Haematological changes observed in this study did not revealed detrimental effect of feeding of PSM. However, histological evaluation of the gonads showed various degrees of deformities and tends to increase in severity as the levels of PMS increased. It was concluded that PSM might not affect the health status of the Nile tilapia but lead to sterility of the fish.

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“…Efektywne mikroorganizmy budzą wiele kontrowersji i szereg wątpliwości, nazywane są "preparatami pseudomikrobiologicznymi", a ich właściwości ocenia się także jako "niewiarygodne" (10). Wiele ośrodków podejmuje badania weryfikujące "nadmiernie wyidealizowane" informacje o tej technologii (9,11,14,15). Zarzuca się im także niestabilność i niepowtarzalność ilości oraz jakości stosowanych szczepów drobnoustrojów, nieskuteczność wobec proponowanych zastosowań albo nieistotny statystycznie efekt działania (7,10).…”

Section: Tab 1 Parametry Nieswoistej Odporności Komórkowej U Sandacunclassified

“…Należy zatem stosować je z rozwagą, po uprzednim poznaniu środowiska, w którym hodowane są ryby. Efekty działania EM są widoczne, ale żeby potwierdzić ich skuteczność, wymagane są dalsze badania i opracowanie szczegółowych procedur podawania (14,15,21).…”

Section: Tab 1 Parametry Nieswoistej Odporności Komórkowej U Sandacunclassified

Influence of effective microorganisms on the non-specific cellular defence mechanisms of pikeperch

Terech-Majewska

Kaczorek

Schulz

et al. 2018

Medycyna Weterynaryjna

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Effective Microorganisms (EM) technology uses microorganisms to work in the surrounding environment. Complex microbiological preparations show synergistic effects, combining the effects of probiotics, prebiotics and synbiotics. EMTM technology is well-known and used in 120 countries worldwide, mainly in agriculture, including aquaculture, and in environmental protection. Fish farmers use these preparations to enhance fish growth, condition and immunity. The aim of the study was to evaluate the effect of EM-Probiotic (Greenland) on the development of cellular non-specific resistance in pikeperch (Sander lucioperca) at the initial stage of rearing in a recirculating aquaculture system (RAS). The experimental diet was administered for 28 days with EM supplementation at 0% (control group), 2% and 4% of the feed. Water temperature in the RAS was maintained at 22.0ºC. Hematopoietic organs (spleen and kidney) were collected twice, after 28 days of EM supplementation (first term) and 28 days after cessation of supplementation (second term). The respiratory burst activity (RBA) and potential killing activity (PKA) of macrophages, as well as the proliferative activity of T- and B-lymphocytes (MTT assay) were assessed. The results of the study show that EM at the initial stage of pikeperch development (body weight of 2 to 14 g) suppress cellular defence mechanisms, decreasing the activity of immunocompetent cells in RBA, PKA and MTT tests. The results from the first organ harvesting showed differentiated EM activity at a statistically insignificant level (P>0.05). In samples collected 28 days later, the inhibitory effect was demonstrated at a statistically significant level (P<0.05) in all parameters in both experimental groups. Non-specific cellular immunity in fish plays a key role in defence against damaging factors, including pathogenic ones. Since fish in an RAS are also susceptible to potentially pathogenic agents, immunosuppression of these mechanisms may aggravate the disease..

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Haematological, Histological and Growth Characteristics of Oreochromis mossambicus Exposed to Effective Microorganisms in Organically Manured Aquadams

Cited by 7 publications

References 9 publications

Hepatic and Haemato-biochemical Alterations in Juvenile Mozambique tilapia (Oreochromis mossambicus) on Pawpaw (Carica papaya) Seed Meal

Hepatic and Haemato-biochemical Alterations in Juvenile Mozambique tilapia (Oreochromis mossambicus) on Pawpaw (Carica papaya) Seed Meal

Haematology and gonad histology of Oreochromis niloticus (Linnaeus, 1758) fed Carica papaya seed meal

Influence of effective microorganisms on the non-specific cellular defence mechanisms of pikeperch

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