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Fabio Ribeiro Braga - One of the best experts on this subject based on the ideXlab platform.
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predatory capability of the nematophagous fungus arthrobotrys robusta preserved in silica gel on infecting larvae of haemonchus contortus
2014Co-Authors: Fabio Ribeiro Braga, Jackson Victor De Araujo, Andre R. Silva, Andrea Lafisca, Rogerio Oliva Carvalho, Luiza Neme Frassy, Filippe Elias De Freitas SoaresAbstract:Biological control of gastrointestinal Nematodiasis in ruminants is an alternative to reduce the number of infective larvae. The fungal isolates predatory activity preservation is a basic requirement for the success of this control type. The aim of this work is to evaluate the predatory capacity of the fungus Arthrobotrys robusta (isolate I-31), preserved on silica gel on infective larvae of Haemonchus contortus under laboratory conditions on 2 % water agar (2 % WA). In this essay, A. robusta storage on silica gel showed successful predatory activity on H. contortus L3 larvae (p < 0.01) compared to the control group. Nematophagous fungi were not observed in the control group during the experiment. There was a significant reduction (p < 0.01) of 73.84 % in the means of H. contortus (L3) recovered from treatment with isolate I-31 compared to the control without fungi. Results indicate that A. robusta (I-31) could survive stored on silica gel for at least 7 years and keep its predatory activity on H. contortus (L3).
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Comparison between the action of nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium in the biological control of bovine gastrointestinal Nematodiasis in tropical southeastern Brazil.
2012Co-Authors: Jackson Victor De Araujo, R.c.l. Assis, F.d. Luns, Fabio Ribeiro Braga, R.l. Assis, J.l. Marcelino, P.c. Freitas, M.a.s. AndradeAbstract:Abstract Sodium alginate pellets of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of bovine gastrointestinal Nematodiasis. Three groups (A–C) of ten six month old male Nelore bulls were kept in paddocks of Brachiaria decumbens for 12 months. Each animal of group A received 1 g/10 kg of body weight (b.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg b.w.) and of group B, 1 g/10 kg of b.w. of pellets of M. thaumasium (0.2 g of fungus/10 kg b.w.), twice a week, for 12 months. Animals of the group control received no fungus. The monthly averages of egg count per gram of feces of the animals of groups A and B were 56.67% and 47.8% smaller, than the animals of group C ( p D. flagrans and M. thaumasium can be used as an alternative treatment of bovine gastrointestinal Nematodiasis, however, D. flagrans was more efficient than M. thaumasium for the biological control in the environmental conditions of the present study.
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Comparison between the action of nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium in the biological control of bovine gastrointestinal Nematodiasis in tropical southeastern Brazil.
2012Co-Authors: R.c.l. Assis, Jackson Victor De Araujo, F.d. Luns, Fabio Ribeiro Braga, R.l. Assis, J.l. Marcelino, P.c. Freitas, M.a.s. AndradeAbstract:Sodium alginate pellets of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of bovine gastrointestinal Nematodiasis. Three groups (A-C) of ten six month old male Nelore bulls were kept in paddocks of Brachiaria decumbens for 12 months. Each animal of group A received 1g/10 kg of body weight (b.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg b.w.) and of group B, 1g/10 kg of b.w. of pellets of M. thaumasium (0.2 g of fungus/10 kg b.w.), twice a week, for 12 months. Animals of the group control received no fungus. The monthly averages of egg count per gram of feces of the animals of groups A and B were 56.67% and 47.8% smaller, than the animals of group C (p
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biological control of sheep gastrointestinal Nematodiasis in a tropical region of the southeast of brazil with the nematode predatory fungi duddingtonia flagrans and monacrosporium thaumasium
2009Co-Authors: Jackson Victor De Araujo, Fabio Ribeiro Braga, Andre R. Silva, Luiza N. Frassy, Rogerio O. Carvalho, Fernanda V. Castejon, Alexandre De Oliveira TavelaAbstract:Formulations in matrix of sodium alginate (pellets) of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of sheep gastrointestinal Nematodiasis. Three groups (1, 2, and 3), each one with eight sheep of the Santa Ines breed, at the ages of 15-48 months, were placed in paddocks of Brachiaria decumbens for 5 months. In group 1, each animal received 1 g/10 kg of live weight (l.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg l.w.). In group 2, each animal received 1 g/10 kg of l.w. of pellets of the fungus M. thaumasium (0.2 g of fungus/10 kg l.w.), twice a week, for 5 months. In group 3 (control), the animals received 1 g/10 kg of live weight of pellets without fungus. The monthly averages of the egg countings per gram of feces of the animals of groups 1 and 2 treated were 71.6% and 61.1% smaller, respectively, in comparison to the animals of group 3 (control). The treatment of sheep with pellets containing the nematophagous fungi D. flagrans and M. thaumasium may be used as an alternative for the control of sheep gastrointestinal Nematodiasis.
M.a.s. Andrade - One of the best experts on this subject based on the ideXlab platform.
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Comparison between the action of nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium in the biological control of bovine gastrointestinal Nematodiasis in tropical southeastern Brazil.
2012Co-Authors: Jackson Victor De Araujo, R.c.l. Assis, F.d. Luns, Fabio Ribeiro Braga, R.l. Assis, J.l. Marcelino, P.c. Freitas, M.a.s. AndradeAbstract:Abstract Sodium alginate pellets of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of bovine gastrointestinal Nematodiasis. Three groups (A–C) of ten six month old male Nelore bulls were kept in paddocks of Brachiaria decumbens for 12 months. Each animal of group A received 1 g/10 kg of body weight (b.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg b.w.) and of group B, 1 g/10 kg of b.w. of pellets of M. thaumasium (0.2 g of fungus/10 kg b.w.), twice a week, for 12 months. Animals of the group control received no fungus. The monthly averages of egg count per gram of feces of the animals of groups A and B were 56.67% and 47.8% smaller, than the animals of group C ( p D. flagrans and M. thaumasium can be used as an alternative treatment of bovine gastrointestinal Nematodiasis, however, D. flagrans was more efficient than M. thaumasium for the biological control in the environmental conditions of the present study.
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Comparison between the action of nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium in the biological control of bovine gastrointestinal Nematodiasis in tropical southeastern Brazil.
2012Co-Authors: R.c.l. Assis, Jackson Victor De Araujo, F.d. Luns, Fabio Ribeiro Braga, R.l. Assis, J.l. Marcelino, P.c. Freitas, M.a.s. AndradeAbstract:Sodium alginate pellets of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of bovine gastrointestinal Nematodiasis. Three groups (A-C) of ten six month old male Nelore bulls were kept in paddocks of Brachiaria decumbens for 12 months. Each animal of group A received 1g/10 kg of body weight (b.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg b.w.) and of group B, 1g/10 kg of b.w. of pellets of M. thaumasium (0.2 g of fungus/10 kg b.w.), twice a week, for 12 months. Animals of the group control received no fungus. The monthly averages of egg count per gram of feces of the animals of groups A and B were 56.67% and 47.8% smaller, than the animals of group C (p
Michael R. Cranfield - One of the best experts on this subject based on the ideXlab platform.
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capillaria hepatica nematoda infections in human habituated mountain gorillas gorilla gorilla beringei of the parc national de volcans rwanda
1999Co-Authors: Thaddeus K Graczyk, Michael R. Cranfield, Linda J. LowenstineAbstract:Habituation to humans of free-ranging populations of endangered mountain gorillas (Gorilla gorilla beringei) raised concern of anthropozoonotic transmission of parasitic helminths and protozoans. Examinations of liver tissue of 19 gorillas found dead in the Pare National de Volcans, Rwanda, revealed 10 cases of hepatic Nematodiasis due to Capillaria hepatica. Identifiable C. hepatica eggs were present in the liver of 4 gorillas (3 juveniles, 1 adult), and nematode cross-sections were found in I juvenile gorilla. Six other adult gorillas had areas of periportal and subcapsular fibrosis with calcified eggs. Histologically, the lesions surrounded by the areas of mild inflammatory reaction were characterized by subcapsular, periportal foci of fibrosis in which were embedded numerous C. hepatica eggs. Control of hepatic capillariasis in the remaining populations of mountain gorillas should be focused on eradication or control of populations of rodent pests (i.e., mice and rats) that sustain the reservoir of C. hepatica in habitats shared by gorillas and humans.
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capillaria hepatica nematoda infections in human habituated mountain gorillas gorilla gorilla beringei of the parc national de volcans rwanda
1999Co-Authors: Thaddeus K Graczyk, Michael R. Cranfield, Linda J. LowenstineAbstract:: Habituation to humans of free-ranging populations of endangered mountain gorillas (Gorilla gorilla beringei) raised concern of anthropozoonotic transmission of parasitic helminths and protozoans. Examinations of liver tissue of 19 gorillas found dead in the Parc National de Volcans, Rwanda, revealed 10 cases of hepatic Nematodiasis due to Capillaria hepatica. Identifiable C. hepatica eggs were present in the liver of 4 gorillas (3 juveniles, 1 adult), and nematode cross-sections were found in 1 juvenile gorilla. Six other adult gorillas had areas of periportal and subcapsular fibrosis with calcified eggs. Histologically, the lesions surrounded by the areas of mild inflammatory reaction were characterized by subcapsular, periportal foci of fibrosis in which were embedded numerous C. hepatica eggs. Control of hepatic capillariasis in the remaining populations of mountain gorillas should be focused on eradication or control of populations of rodent pests (i.e., mice and rats) that sustain the reservoir of C. hepatica in habitats shared by gorillas and humans.
Andre R. Silva - One of the best experts on this subject based on the ideXlab platform.
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Predatory capability of the nematophagous fungus Arthrobotrys robusta preserved in silica gel on infecting larvae of Haemonchus contortus
2014Co-Authors: Andre R. Silva, Jackson V. Araújo, Luiza N. Frassy, Rogerio O. Carvalho, Fabio R. Braga, Andrea Lafisca, Filippe E. F. SoaresAbstract:Biological control of gastrointestinal Nematodiasis in ruminants is an alternative to reduce the number of infective larvae. The fungal isolates predatory activity preservation is a basic requirement for the success of this control type. The aim of this work is to evaluate the predatory capacity of the fungus Arthrobotrys robusta (isolate I-31), preserved on silica gel on infective larvae of Haemonchus contortus under laboratory conditions on 2 % water agar (2 % WA). In this essay, A. robusta storage on silica gel showed successful predatory activity on H. contortus L_3 larvae ( p
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predatory capability of the nematophagous fungus arthrobotrys robusta preserved in silica gel on infecting larvae of haemonchus contortus
2014Co-Authors: Fabio Ribeiro Braga, Jackson Victor De Araujo, Andre R. Silva, Andrea Lafisca, Rogerio Oliva Carvalho, Luiza Neme Frassy, Filippe Elias De Freitas SoaresAbstract:Biological control of gastrointestinal Nematodiasis in ruminants is an alternative to reduce the number of infective larvae. The fungal isolates predatory activity preservation is a basic requirement for the success of this control type. The aim of this work is to evaluate the predatory capacity of the fungus Arthrobotrys robusta (isolate I-31), preserved on silica gel on infective larvae of Haemonchus contortus under laboratory conditions on 2 % water agar (2 % WA). In this essay, A. robusta storage on silica gel showed successful predatory activity on H. contortus L3 larvae (p < 0.01) compared to the control group. Nematophagous fungi were not observed in the control group during the experiment. There was a significant reduction (p < 0.01) of 73.84 % in the means of H. contortus (L3) recovered from treatment with isolate I-31 compared to the control without fungi. Results indicate that A. robusta (I-31) could survive stored on silica gel for at least 7 years and keep its predatory activity on H. contortus (L3).
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biological control of sheep gastrointestinal Nematodiasis in a tropical region of the southeast of brazil with the nematode predatory fungi duddingtonia flagrans and monacrosporium thaumasium
2009Co-Authors: Jackson Victor De Araujo, Fabio Ribeiro Braga, Andre R. Silva, Luiza N. Frassy, Rogerio O. Carvalho, Fernanda V. Castejon, Alexandre De Oliveira TavelaAbstract:Formulations in matrix of sodium alginate (pellets) of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of sheep gastrointestinal Nematodiasis. Three groups (1, 2, and 3), each one with eight sheep of the Santa Ines breed, at the ages of 15-48 months, were placed in paddocks of Brachiaria decumbens for 5 months. In group 1, each animal received 1 g/10 kg of live weight (l.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg l.w.). In group 2, each animal received 1 g/10 kg of l.w. of pellets of the fungus M. thaumasium (0.2 g of fungus/10 kg l.w.), twice a week, for 5 months. In group 3 (control), the animals received 1 g/10 kg of live weight of pellets without fungus. The monthly averages of the egg countings per gram of feces of the animals of groups 1 and 2 treated were 71.6% and 61.1% smaller, respectively, in comparison to the animals of group 3 (control). The treatment of sheep with pellets containing the nematophagous fungi D. flagrans and M. thaumasium may be used as an alternative for the control of sheep gastrointestinal Nematodiasis.
R.c.l. Assis - One of the best experts on this subject based on the ideXlab platform.
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Comparison between the action of nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium in the biological control of bovine gastrointestinal Nematodiasis in tropical southeastern Brazil.
2012Co-Authors: Jackson Victor De Araujo, R.c.l. Assis, F.d. Luns, Fabio Ribeiro Braga, R.l. Assis, J.l. Marcelino, P.c. Freitas, M.a.s. AndradeAbstract:Abstract Sodium alginate pellets of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of bovine gastrointestinal Nematodiasis. Three groups (A–C) of ten six month old male Nelore bulls were kept in paddocks of Brachiaria decumbens for 12 months. Each animal of group A received 1 g/10 kg of body weight (b.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg b.w.) and of group B, 1 g/10 kg of b.w. of pellets of M. thaumasium (0.2 g of fungus/10 kg b.w.), twice a week, for 12 months. Animals of the group control received no fungus. The monthly averages of egg count per gram of feces of the animals of groups A and B were 56.67% and 47.8% smaller, than the animals of group C ( p D. flagrans and M. thaumasium can be used as an alternative treatment of bovine gastrointestinal Nematodiasis, however, D. flagrans was more efficient than M. thaumasium for the biological control in the environmental conditions of the present study.
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Comparison between the action of nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium in the biological control of bovine gastrointestinal Nematodiasis in tropical southeastern Brazil.
2012Co-Authors: R.c.l. Assis, Jackson Victor De Araujo, F.d. Luns, Fabio Ribeiro Braga, R.l. Assis, J.l. Marcelino, P.c. Freitas, M.a.s. AndradeAbstract:Sodium alginate pellets of the nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium were evaluated in the biological control of bovine gastrointestinal Nematodiasis. Three groups (A-C) of ten six month old male Nelore bulls were kept in paddocks of Brachiaria decumbens for 12 months. Each animal of group A received 1g/10 kg of body weight (b.w.) of pellets of D. flagrans (0.2 g of fungus/10 kg b.w.) and of group B, 1g/10 kg of b.w. of pellets of M. thaumasium (0.2 g of fungus/10 kg b.w.), twice a week, for 12 months. Animals of the group control received no fungus. The monthly averages of egg count per gram of feces of the animals of groups A and B were 56.67% and 47.8% smaller, than the animals of group C (p
