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Effect of the infection with the nematode Haemonchus contortus (Strongylida: Trichostrongylidae) on the haematological, biochemical, clinical and reproductive traits in rams

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Title Effect of the infection with the nematode Haemonchus contortus (Strongylida: Trichostrongylidae) on the haematological, biochemical, clinical and reproductive traits in rams
 
Creator Rouatbi, Mariem
 
Contributor Gharbi, Mohamed
Rijeibi, Mohammed
Ben Salem, Imene
Akkari, Hafidh
Lassoued, Narjess
Rekik, Mourad
 
Subject ram
haemonchuscontortus
biochemical parameters
semen production
 
Description This study aimed to investigate the effect of Haemonchus contortus infection on rams’
haematological, biochemical and clinical parameters and reproductive performances. A total
number of 12 Barbarine rams (control and infected) were included in the experiment. The
infected group received 30 000 H. contortus third-stage larvae orally. Each ram’s ejaculate was
immediately evaluated for volume, sperm cell concentration and mortality rate. At the end of
the experiment (day 82 post-infection), which lasted 89 days, serial blood samples were
collected in order to assess plasma testosterone and luteinising hormone (LH) concentrations.
There was an effect of time, infection and their interaction on haematological parameters
(p < 0.001). In infected rams, haematocrit, red blood cell count and haemoglobin started to
decrease from 21 days post-infection. There was an effect of time and infection for albumin.
For total protein, only infection had a statistically significant effect. For glucose, only time had
a statistically significant effect. Concentrations were significantly lower in infected rams
compared to control animals. A significant effect of infection and time on sperm concentrations
and sperm mortality was observed. The effect of infection appears in time for sperm
concentrations at days 69 and 76 post-infection. Sperm mortality rate was significantly higher
in infected animals at day 46 post-infection when compared to control group (p < 0.05). Finally,
plasma testosterone traits (average concentration, cumulated levels during the sampling
period and pulse frequency) were depressed in infected rams when compared to control
counterparts; none of these endocrine traits were affected for plasma LH.
 
Date 2016-08-30
2016-09-20T11:17:03Z
2016-09-20T11:17:03Z
 
Type Journal Article
 
Identifier http://www.ojvr.org/index.php/ojvr/article/view/1129
https://mel.cgiar.org/reporting/download/hash/BbevSzA2
Mariem Rouatbi, Mohamed Gharbi, Mohammed Rijeibi, Imene Ben Salem, Hafidh Akkari, Narjess Lassoued, Mourad Rekik. (30/8/2016). Effect of the infection with the nematode Haemonchus contortus (Strongylida: Trichostrongylidae) on the haematological, biochemical, clinical and reproductive traits in rams. Onderstepoort Journal of Veterinary Research, 83 (1), pp. 1-8.
https://hdl.handle.net/20.500.11766/4971
Open access
 
Language en
 
Rights CC-BY-4.0
 
Format PDF
 
Publisher AOSIS
 
Source Onderstepoort Journal of Veterinary Research;83,(2016) Pagination 1-8