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| Guyonnet, Vincent; Johnson, Joyce K.; Long, Peter L.. |
| The role of pancreatic proteolytic enzymes in the excystation process of Eimeria tenella oocysts and sporocysts was studied in vitro. Intact sporulated oocysts were preincubated in phosphate buffer, NaCl 0.9% (PBS) added with 0.5% chicken bile extract in a 5% C02 atmosphere for 30 minutes prior to exposure to either 0.25% (w/v) chicken trypsin, chymotrypsin, pancreatic elastase, or a 1% (w/v) crude extract of unsporulated and sporulated oocysts of E. tenella (Expt.1). No excystation was observed under these conditions. Sporocysts were also incubated under the same conditions without pretreatment in C02. Excystation was observed for sporocysts incubated with either trypsin, chymotrypsin or pancreatic elastase, the best percentage of excystation being... |
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Palavras-chave: Chymotrypsin; Eimeria tenella; Elastase; Excystation; Trypsin. |
| Ano: 1991 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/155 |
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| Abbas,Rao Zahid; Iqbal,Zafar; Khan,Muhammad Nisar; Zafar,Muhammad Arif; Zia,Muhammad Anjum. |
| Comparative efficacy of turmeric (Curcuma longa L.) crude powder and salinomycin sodium on the occurrence of coccidiosis and growth performance of broiler was evaluated. A total of 90, day-old chicks were randomly divided into six groups. From first day onward, ration was supplemented with 1, 2 and 3 % turmeric powder in groups 2, 3 and 4, respectively, group 1 received salinomycin sodium @ 12 g 50 kg-1 feed while groups 5 and 6 were kept as infected un-medicated and uninfected un-medicated controls. First five groups were infected with Eimeria tenella sporulated oocysts @ 1,00,000/chick at the age of 20 days. Body weight gain, feed consumption, feed conversion ratio were investigated throughout the experimental period, and bloody diarrhea and oocysts... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Curcuma longa; Coccidiostat; Eimeria tenella. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100008 |
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