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Experimental Infection with Sporulated Oocysts of Eimeria maxima (Apicomplexa: Eimeriidae) in Broiler.

Brito Lda S, Pereira EN, da Silva AA, Bentivóglio Costa Silva V, Freitas FL - J Vet Med (2014)

Bottom Line: Although the sum in meat production was higher in the control group, the weight of the heart and gizzard of the experimental animals showed no significant difference, while the liver had difference on day 5°, 15°, and 35° dpi.The pathologic evaluation showed congested mucosa and presence of large amounts of mucus at 6 dpi.Therefore, it is concluded that the dose of 5 × 10(4) E. maxima inoculated in the experimental group was enough to cause harm to the animal organism.

View Article: PubMed Central - PubMed

Affiliation: Anatomy Laboratory, Institute of Biotechnology and Health, Federal University of Amazonas, Road Coari/Mamia, n° 305, 69460-000 Coari, AM, Brazil.

ABSTRACT
Through this study we assessed the metabolic and pathological changes in broilers experimentally infected with oocysts of Eimeria maxima. To perform the experiment, we used 150 broiler strain cooB males, with ten days of age, were randomized according to weight and randomly assigned to two experimental groups: the control group was inoculated with 0.5 mL of distilled water; the infected group inoculated with 0.5 mL of solution containing 5 × 10(4) sporulated oocysts of Eimeria maxima. The live performance was evaluated on day 0 (day of inoculation), 5°, 10°, 15°, 25°, and 35° dpi, being slaughtered by cervical dislocation, fifteen birds/group. Although the sum in meat production was higher in the control group, the weight of the heart and gizzard of the experimental animals showed no significant difference, while the liver had difference on day 5°, 15°, and 35° dpi. The pathologic evaluation showed congested mucosa and presence of large amounts of mucus at 6 dpi. Therefore, it is concluded that the dose of 5 × 10(4) E. maxima inoculated in the experimental group was enough to cause harm to the animal organism.

No MeSH data available.


Related in: MedlinePlus

Isolated oocysts in the infected birds' feces, during the period of patency and sporulated “in vitro” to confirm its species.
© Copyright Policy - open-access
Related In: Results  -  Collection


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fig2: Isolated oocysts in the infected birds' feces, during the period of patency and sporulated “in vitro” to confirm its species.

Mentions: The first clinical signs were seen in 5 dpi and the birds showed apathy followed by fetid diarrhea, mucoid, ruffled feathers, and less weight gain compared to the birds of the control group (Figure 1). The infected group showed a prepatency and patency of 5 and 12 days, respectively. The end of the patent period was confirmed by parasitological stool examination and histopathological analysis of the small intestine (Figure 2) and the control animals remained negative for the presence of oocysts throughout the experimental period. These characteristics are similar to findings in other studies with results of five- and seven-day period prescribed prepatent and patent [19–21].


Experimental Infection with Sporulated Oocysts of Eimeria maxima (Apicomplexa: Eimeriidae) in Broiler.

Brito Lda S, Pereira EN, da Silva AA, Bentivóglio Costa Silva V, Freitas FL - J Vet Med (2014)

Isolated oocysts in the infected birds' feces, during the period of patency and sporulated “in vitro” to confirm its species.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4590854&req=5

fig2: Isolated oocysts in the infected birds' feces, during the period of patency and sporulated “in vitro” to confirm its species.
Mentions: The first clinical signs were seen in 5 dpi and the birds showed apathy followed by fetid diarrhea, mucoid, ruffled feathers, and less weight gain compared to the birds of the control group (Figure 1). The infected group showed a prepatency and patency of 5 and 12 days, respectively. The end of the patent period was confirmed by parasitological stool examination and histopathological analysis of the small intestine (Figure 2) and the control animals remained negative for the presence of oocysts throughout the experimental period. These characteristics are similar to findings in other studies with results of five- and seven-day period prescribed prepatent and patent [19–21].

Bottom Line: Although the sum in meat production was higher in the control group, the weight of the heart and gizzard of the experimental animals showed no significant difference, while the liver had difference on day 5°, 15°, and 35° dpi.The pathologic evaluation showed congested mucosa and presence of large amounts of mucus at 6 dpi.Therefore, it is concluded that the dose of 5 × 10(4) E. maxima inoculated in the experimental group was enough to cause harm to the animal organism.

View Article: PubMed Central - PubMed

Affiliation: Anatomy Laboratory, Institute of Biotechnology and Health, Federal University of Amazonas, Road Coari/Mamia, n° 305, 69460-000 Coari, AM, Brazil.

ABSTRACT
Through this study we assessed the metabolic and pathological changes in broilers experimentally infected with oocysts of Eimeria maxima. To perform the experiment, we used 150 broiler strain cooB males, with ten days of age, were randomized according to weight and randomly assigned to two experimental groups: the control group was inoculated with 0.5 mL of distilled water; the infected group inoculated with 0.5 mL of solution containing 5 × 10(4) sporulated oocysts of Eimeria maxima. The live performance was evaluated on day 0 (day of inoculation), 5°, 10°, 15°, 25°, and 35° dpi, being slaughtered by cervical dislocation, fifteen birds/group. Although the sum in meat production was higher in the control group, the weight of the heart and gizzard of the experimental animals showed no significant difference, while the liver had difference on day 5°, 15°, and 35° dpi. The pathologic evaluation showed congested mucosa and presence of large amounts of mucus at 6 dpi. Therefore, it is concluded that the dose of 5 × 10(4) E. maxima inoculated in the experimental group was enough to cause harm to the animal organism.

No MeSH data available.


Related in: MedlinePlus