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Inhibition Effect of pH on the Hatchability of Fasciola Miracidia under Laboratory Conditions.

Yakhchali M, Bahramnejad K - Iran J Parasitol (2016 Jan-Mar)

Bottom Line: The present study was aimed to assess the effects of different pH values on hatching rate of Fasciola miracidia.There were significant differences between the hatching rate of the treatments and that of the control group.Water pH is proven to be a crucial factor affecting the life cycle of Fasciola and its epidemiology.

View Article: PubMed Central - PubMed

Affiliation: Dep. of Pathobiology, Parasitology division, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.

ABSTRACT

Background: Fasciolosis, caused by the liver flukes of the genus Fasciola, is one of the most prevalent diseases of domestic livestock and human throughout the world, imposing considerable economic losses. The present study was aimed to assess the effects of different pH values on hatching rate of Fasciola miracidia.

Methods: The flukes were isolated from the infected livers of the slaughtered ruminants at the abattoir of Urmia City, Iran, crushed thoroughly and sieved for isolation of the Fasciola eggs. The eggs were washed up several times by PBS (0.01N, pH 7.2). They were incubated at different pH values of 7±0.1 (control) and 3-9.5 (treatments) at 28°C for 16 days.

Results: The maximum hatching rate was observed at pH 7 (14.93±0.65%), while no miracidia were hatched at pH 3 and/or pH 9-9.5. There were significant differences between the hatching rate of the treatments and that of the control group.

Conclusion: Water pH is proven to be a crucial factor affecting the life cycle of Fasciola and its epidemiology.

No MeSH data available.


Related in: MedlinePlus

The average of hatched (a) and non-hatched (b) rates of Fasciola eggs at different pH levels.
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Figure 2: The average of hatched (a) and non-hatched (b) rates of Fasciola eggs at different pH levels.

Mentions: Maximum and minimum hatching rate were respectively observed at pH 7 (14.93±0.65) and pH 3 (0%) (Table 1). There was significant difference between average number of hatched and un-hatched eggs of Fasciola in both control and treatment groups (P≤ 0.05) (Table I). Hatching rates of all the treatments had significant correlations with pH values (r =0.865) (Fig.2).


Inhibition Effect of pH on the Hatchability of Fasciola Miracidia under Laboratory Conditions.

Yakhchali M, Bahramnejad K - Iran J Parasitol (2016 Jan-Mar)

The average of hatched (a) and non-hatched (b) rates of Fasciola eggs at different pH levels.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4835467&req=5

Figure 2: The average of hatched (a) and non-hatched (b) rates of Fasciola eggs at different pH levels.
Mentions: Maximum and minimum hatching rate were respectively observed at pH 7 (14.93±0.65) and pH 3 (0%) (Table 1). There was significant difference between average number of hatched and un-hatched eggs of Fasciola in both control and treatment groups (P≤ 0.05) (Table I). Hatching rates of all the treatments had significant correlations with pH values (r =0.865) (Fig.2).

Bottom Line: The present study was aimed to assess the effects of different pH values on hatching rate of Fasciola miracidia.There were significant differences between the hatching rate of the treatments and that of the control group.Water pH is proven to be a crucial factor affecting the life cycle of Fasciola and its epidemiology.

View Article: PubMed Central - PubMed

Affiliation: Dep. of Pathobiology, Parasitology division, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.

ABSTRACT

Background: Fasciolosis, caused by the liver flukes of the genus Fasciola, is one of the most prevalent diseases of domestic livestock and human throughout the world, imposing considerable economic losses. The present study was aimed to assess the effects of different pH values on hatching rate of Fasciola miracidia.

Methods: The flukes were isolated from the infected livers of the slaughtered ruminants at the abattoir of Urmia City, Iran, crushed thoroughly and sieved for isolation of the Fasciola eggs. The eggs were washed up several times by PBS (0.01N, pH 7.2). They were incubated at different pH values of 7±0.1 (control) and 3-9.5 (treatments) at 28°C for 16 days.

Results: The maximum hatching rate was observed at pH 7 (14.93±0.65%), while no miracidia were hatched at pH 3 and/or pH 9-9.5. There were significant differences between the hatching rate of the treatments and that of the control group.

Conclusion: Water pH is proven to be a crucial factor affecting the life cycle of Fasciola and its epidemiology.

No MeSH data available.


Related in: MedlinePlus