Composition of Heart, Liver, and Skeletal Muscle from Broilers with Coccidiosis

Ruff, M. D.; Allen, Patricia C.; Chute, M. B.

doi:10.3382/ps.0601807

Cited by 18 publications

(9 citation statements)

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“…Isso ocorreu, possivelmente, devido a uma alteração no metabolismo de lipídio hepático decorrente das lesões intestinais resultantes do ciclo evolutivo do parasito. Todas as lesões decorrentes da reprodução parasitária interferem diretamente a absorção de nutrientes, desencadeando uma série de distúrbios no metabolismo de carboidratos (FREEMAN, 1970;ALLEN;MCMURTRY, 1984), proteínas (RUFF et al, 1981;FETTERER;ALLEN, 2000), lipídeos (ALLEN, 1988) e macro e micro-minerais (TURK, 1986ab). Na presente pesquisa, as doses de 1x10 6 e 1x10 5 oocistos de E. acervulina inoculadas nos grupos A e B, respectivamente, foram suficientes para ocasionar sérios danos ao organismo animal, porém o grupo A foi o mais afetado pela infecção, ficando evidente que a intensidade das alterações clinicas e patológicas é decorrente da dose infectante.…”

Section: Discussionunclassified

“…De acordo com Morehouse e Mcguire (1958), o parasita invade as células epiteliais do duodeno, onde a infecção é mais severa, e avança até a parte média do intestino delgado causando destruição epitelial e conseqüente enterite. Segundo Terra et al (2001) as lesões provocadas no epitélio intestinal, resultantes das fases de desenvolvimento, prejudicam os índices zootécnicos dos frangos e, conseqüentemen-te, o resultado econômico da empresa avícola.…”

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Aspectos clínicos e patológicos em frangos de corte (Gallus gallus domesticus) infectados experimentalmente com oocistos esporulados de Eimeria acervulina Tyzzer, 1929

Freitas

Almeida²,

Nascimento³

et al. 2008

Rev. Bras. Parasitol. Vet.

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RESUMONo presente estudo, sinais clínicos e alterações patológicas foram avaliados por 30 dias em frangos de corte, linhagem Cobb, machos, com dez dias de idade, infectados com Eimeria acervulina. Foram utilizados 192 animais distribuídos em 3 grupos: grupo A inoculado com 1x10 6 oocistos esporulados; grupo B inoculado com 1x10 5 oocistos esporulados; grupo C inoculado com água destilada. Os sinais clínicos observados foram anorexia, diarréia e apatia. As alterações patológicas macroscópicas observadas foram: enterite, hiperemia seguido de congestão intestinal, excesso de exsudato mucoso no lúmen do intestino delgado, palidez e desidratação muscular, alto acúmulo de bile na vesícu-la biliar e deposição de gordura hepática. A atrofia de vilosidades e alta presença de células inflamatórias foram as alterações microscópicas observadas no epitélio intestinal. Na análise histopatológica do fígado observaram-se infiltrados inflamatóri-os e deposição de gordura. Os resultados demonstraram que frangos de corte infectados experimentalmente com E. acervulina apresentam progressivas lesões intestinais de intensidade variá-vel e que essas anormalidades são as principais causas de redução no desenvolvimento da ave. PALAVRAS-CHAVE:Eimeria acervulina, infecção experimental e frangos de corte. INTRODUÇÃODentre as doenças que acarretam consideráveis perdas econômicas destaca-se a eimeriose, enfermidade mais freqüen- Aspectos clínicos e patoló-gicos em frangos de corte (Gallus gallus domesticus) infectados experimentalmente com oocistos esporulados de Eimeria acervulina Tyzzer, 1929. Revista Brasileira de Parasitologia Veterinária, v. 17, n. 1, p.16-20, 2008. Programa de Pós-Graduação em Medicina Veterinária, Departamento de Patologia Animal, Universidade Estadual Paulista, Campus de Jaboticabal, Av. Prof. Paulo Donato Castellane, s/n, Zona Rural, Jaboticabal, SP 14884-900, Brazil. E-mail: fagner@fcav.unesp.br. ASPECTOS CLÍNICOS E PATOLÓGICOS EM FRANGOS DE CORTE (Gallus gallus domesticus) INFECTADOS EXPERIMENTALMENTE COM OOCISTOS ESPORULADOS DEIn the present study, clinical signs and pathological changes were evaluated during 30 days in broilers, lineage Cobb, males, with ten days old, infected with Eimeria acervulina. Were used 192 animals distributed in 3 groups: group A inoculated with 1x10 6 sporulated oocysts; group B inoculated with 1x10 5 sporulated oocysts; group C inoculated with distilled water. The clinical signs observed were anorexia, diarrhea and apathy. The pathological macroscopic changes observed were: enteritis, hyperemia with subsequent intestinal congestion, high concentration of mucus exudates in the lumen of the small intestine, pale and dehydration muscle, gall bladder full of liquid and deposition of hepatic fat. The villous atrophy and high presence of inflammatory cells were the microscopic changes observed in the gut epithelium. In histopathologic analysis of liver observed inflammatory cells infiltrated and fat deposition. The results demonstrate that broilers experimentally infected with E. acervulina...

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Aspectos clínicos e patológicos em frangos de corte (Gallus gallus domesticus) infectados experimentalmente com oocistos esporulados de Eimeria acervulina Tyzzer, 1929

Freitas

Almeida²,

Nascimento³

et al. 2008

Rev. Bras. Parasitol. Vet.

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“…Liver glycogen in growing Leghorn chicks was 2.46 mg /100 mg of liver dry weight (Sarkar, 1971 and1973). In another study liver glycogen content in broiler chicks at a comparable age was found to be 2.92 mg/100 mg of liver dry weight (Ruff et al, 1981).…”

Section: Introductionmentioning

confidence: 87%

“…Liver storage of fat and glycogen as well as plasma lipids profile may reflect energy homeostasis and lipids mobilization in the body. Ruff et al, (1981) stated that fat content in liver of broilers at 4 weeks of age was found to be 17.3 % based of liver dry weight. However, Patel et al (1981) reviewed that content of liver fat of White Leghorn chicks at 8 weeks of age was 13.2 % based of liver dry weight.…”

Section: Introductionmentioning

confidence: 99%

Hepatic Metabolism of some Breeds of Chickens

Abdel-Kawy

Shoukry

Elshafei

et al. 2017

Journal of Animal and Poultry Production

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An experiment was conducted to study the differences in liver metabolism of some chicken breeds had different levels of domestication and production types. Hepatic oxygen consumption (HOC), liver weight percentage, liver glycogen, liver fat and Plasma lipids profiles of 180 birds of Dandarawi (D), Lohmann selected leghorn (L.S.L) and Cobb 500 chicks were assayed. The experiment was terminated at 8 weeks of age. Breed had significant effect on hepatic oxygen consumption, liver weight percentage, liver glycogen, total cholesterol and high-density lipoprotein (HDL). The Dandarawi had significantly (P≤0.05) higher HOC and liver glycogen compared to L.S.L and Cobb 500 chicks. Meanwhile, the Cobb 500 chicks had significantly (P≤0.05) lower liver weight percentage and had significantly (P≤0.05) higher total cholesterol and HDL compared to D and L.S.L chicks. The effect of sex was also noticed in liver weight percentage, the female had significantly (P≤0.05) higher liver weight when compared to male chicks. The effect of interactions between breed and sex was also noticed in liver fat, the male Cobb 500 had significantly (P≤0.05) higher liver fat when compared to female Cobb 500 , male and female D and L.S.L. chicks. It can be concluded that domestication and intensive selection for growth rate and egg production has resulted in alterations in hepatic metabolism, liver glycogen, and, fat and plasma lipids profiles.

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“…Recent investigations in this laboratory have focused upon the effects that coccidial infections have on liver glycogen stores (Ruff et al, 1981;Ruff and Allen, 1982). Because Eimeria acervulina infections can cause marked elevations of glycogen levels at 7 to 8 days after inoculation (DAI) (Ruff and Allen, 1982), it was conjectured that infections might be associated with abnormal changes in levels of pancreatic hormones.…”

Section: Introductionmentioning

confidence: 99%

Changes in Pancreatic Hormones Associated with Coccidiosis

Allen

McMurtry

1984

Poultry Science

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Compared to controls, 2- to 3-week-old broiler chicks inoculated with Eimeria acervulina (2 X 10(6) sporulated oocysts/bird) had significantly lower mean plasma levels of pancreatic insulin (PI) and pancreatic glucagon (PG) between 4 and 6 days after inoculation (DAI). In further trials with E. acervulina infections, significant depressions in mean PG were seen at 7 DAI and appeared to be associated with a high inoculating dose. Mean plasma levels of glucagon-like immunoreactants (GLI) were significantly increased from 3 to 8 DAI. This increase was repeatedly demonstrable at 7 DAI and was dose dependent between doses of 2 X 10(3) and 2 X 10(5) sporulated oocysts/bird. Compared to controls, chicks inoculated with E. tenella (2 X 10(5) sporulated oocysts/bird) had significantly higher mean plasma levels of PI at 4, 7, and 8 DAI and a significantly lower value at 6 DAI. Mean plasma PG values were significantly lower at 5 and 6 DAI. Mean plasma levels of GLI did not differ significantly from controls throughout the experiment. Changes in the hormones measured in both infections showed no direct significant statistical relationship with changes in pancreas weight, body weight, blood glucose or liver glycogen. However, an inverse correlation was found between plasma GLI and plasma pigment levels with time after infection in E. acervulina infections. The coincidence of plasma GLI increase with increased oocyst dose and diminished plasma pigment in E. acervulina infections, and the fact that E. tenella infection did not elicit a significant increase in plasma GLI, suggests that elevated GLI is closely associated with mucosal damage in the upper small intestine caused by E. acervulina.

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Composition of Heart, Liver, and Skeletal Muscle from Broilers with Coccidiosis

Cited by 18 publications

References 9 publications

Aspectos clínicos e patológicos em frangos de corte (Gallus gallus domesticus) infectados experimentalmente com oocistos esporulados de Eimeria acervulina Tyzzer, 1929

Aspectos clínicos e patológicos em frangos de corte (Gallus gallus domesticus) infectados experimentalmente com oocistos esporulados de Eimeria acervulina Tyzzer, 1929

Hepatic Metabolism of some Breeds of Chickens

Changes in Pancreatic Hormones Associated with Coccidiosis

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