The egg production of Toxocara vitulorum in Asian buffalo (Bubalus bubalis)

Roberts, J.A.

doi:10.1016/0304-4017(90)90066-k

Cited by 29 publications

(22 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The estimated peak in FEC occurred about 2 weeks later when compared to the peak observed in buffalo calves (Roberts 1990a). The prevalence seemed rather high and falls within the range of the highest values of prevalence reported in tropical areas in previous published studies (Rojas et al 1972;Baruah et al 1981;Rekwot and Ogunsusi 1985;Roberts 1992;Maqbool et al 1998;Rao et al 2000;Rajkhowa and Hazarika 2001).…”

Section: Discussionsupporting

confidence: 63%

See 1 more Smart Citation

Incidence of Toxocara vitulorum in Creole calves of Guadeloupe

Mahieu

Naves

2007

Trop Anim Health Prod

View full text Add to dashboard Cite

The 247 calves from 112 Creole cows of Guadeloupe were monitored for Toxocara vitulorum infection from year 2002 to 2005. The cows were in good body condition and the calf growth rate was 880g/d on average. The overall prevalence of infection was estimated to 0.77 [0.72; 0.83]. The faecal egg count peaked 49 days after calf birth, and then decreased. No clinical symptom related to T. vitulorum infection was observed, and no effect on the calf growth rate was shown. It was concluded that, despite the high prevalence of T. vitulorum, the production loss remains under the level of detection, and no drenching is needed for well-fed animals.

show abstract

Section: Discussionsupporting

confidence: 63%

“…Adult nematodes develop only in the small intestines of young calves, and female worms can lay up to 100 000 eggs per day (Roberts 1990a). Cattle acquire larval infection from infective eggs in wallow water, soil and pasture, while calves may also be infected from contamination of the udder and teats of the cow (Roberts 1989a).…”

Section: Introductionmentioning

confidence: 99%

Incidence of Toxocara vitulorum in Creole calves of Guadeloupe

Mahieu

Naves

2007

Trop Anim Health Prod

View full text Add to dashboard Cite

show abstract

“…The hypothesis that older animals can acquire immunity against GI parasites has been supported experimentally by different scientists (Gamble and Zajac 1992;Rajapakse et al 1994;Colditz et al 1996;Knox 2000). Similarly, a number of scientists have demonstrated an increased prevalence in young age (Gupta et al 1976;Starke et al 1983, Roberts 1990Raza et al 2007). However, in our study, prevalence of F. gigantica and F. hepatica were not found to be associated with the age of host (Khan et al 2009).…”

Section: Discussionmentioning

confidence: 94%

Gastrointestinal helminthiasis: prevalence and associated determinants in domestic ruminants of district Toba Tek Singh, Punjab, Pakistan

et al. 2010

View full text Add to dashboard Cite

The objective of the present study was to determine the prevalence and associated determinants (e.g., sex, age, on-farm management and husbandry) of gastrointestinal (GI) helminths in the domestic animals of district Toba Tek Singh, Punjab, Pakistan. For this purpose, 1,140 cattle, 1,140 buffaloes, 660 goats, 840 sheep, and 156 camels were randomly selected and their fecal samples were screened every other week for a year using a modified floatation technique. The samples positive for strongyle-type eggs had the parasite species identified using coproculture. It was found that the prevalence of GI helminths was significantly higher (P < 0.05) in sheep (44.17%; 371/840) than in other livestock. Sheep were followed in order by goats (40.15%; 265/660), buffaloes (39.82%; 454/1,140), and cattle (33.68%; 384/1,140). The important helminth species identified were Fasciola (F.) gigantica, Fasciola hepatica, Haemonchus contortus, Toxocara vitulorum, Trichostrongylus spp., Oesophagostomum spp., Ostertagia spp., Cooperia spp., Strongyloides spp., Moniezia spp., and Trichuris spp. The prevalence of GI helminths except F. hepatica and F. gigantica was significantly higher in grazing animals, females (P < 0.05) and young (P < 0.05) of all the host species when compared with stall-fed animals, males and adults, respectively. Using ponds and rivers/canals as drinking water were found to have significant influence (P < 0.05) on the prevalence of GI helminths. The results provide a baseline data for planning future research and control strategies against GI helminthes.

show abstract

“…Gastrointestinal helminthiasis affects ruminants, causing biochemical disturbances, weight loss, anorexia, failure of digestion and even animal death (Roberts 1990;Hayat et al 1999). Hammond et al (1997) affirmed that gastrointestinal helminth parasites cause a reduction in the productivity of domestic animals in many tropical and subtropical countries.…”

Section: Introductionmentioning

confidence: 98%

“…The parasitized animals eliminate T. vitulorum eggs in the feces after 22 days of birth, contaminating the environment and other animals (Mahieu and Naves 2008). Roberts (1990) pointed out that the prevalence of T. vitulorum in most countries is between 5 and 50% and has been influenced by animal species, sex and seasonal variations. Prevalence can reach 100%, when uncontrolled in the field, since each female can lay up to 100.000 eggs per day.…”

Section: Introductionmentioning

confidence: 99%

Predatory activity of Pochonia chlamydosporia fungus on Toxocara (syn. Neoascaris) vitulorum eggs

Braga

Ferreira

Araújo

et al. 2009

Trop Anim Health Prod

View full text Add to dashboard Cite

Toxocara (Neoascaris) vitulorum is a gastrointestinal nematode parasite of young ruminants, responsible for high mortality rates in parasitized cattle and buffalo calves. The objective of this work was to compare the predatory capacity under laboratory conditions of four fungal isolates of the nematophagous fungus Pochonia chlamydosporia (VC1, VC4, VC5 and VC12) on T. vitulorum eggs in 2% water-agar (2% WA). T. vitulorum eggs were plated on 2% WA Petri dishes which contained cultured fungal isolates and control plates without fungi. After 10 and 15 days one hundred eggs were removed and classified according to the following parameters: type 1, biochemical and physiological effect without morphological damage to the eggshell, type 2, lytic effect with morphological alteration of the eggshell and embryo and type 3, lytic effect with morphological alteration of eggshell and embryo in addition to hyphal penetration and internal egg colonization. The fungal isolates were effective in the destruction of T. vitulorum eggs presenting the type 3 effect at 10 and 15 days after contact with the fungus. No nematophagous fungi were observed in the control group during the experiment. There was no variation in the predatory capacity of the fungal isolates (P > 0.01) at the intervals of 10 and 15 days. These results indicate that P. chlamydosporia (VC1, VC4, VC5 and VC12) negatively influenced the development of T. vitulorum eggs and can be considered a potential candidate for the biological control of nematodes.

show abstract

The egg production of Toxocara vitulorum in Asian buffalo (Bubalus bubalis)

Cited by 29 publications

References 8 publications

Incidence of Toxocara vitulorum in Creole calves of Guadeloupe

Incidence of Toxocara vitulorum in Creole calves of Guadeloupe

Gastrointestinal helminthiasis: prevalence and associated determinants in domestic ruminants of district Toba Tek Singh, Punjab, Pakistan

Predatory activity of Pochonia chlamydosporia fungus on Toxocara (syn. Neoascaris) vitulorum eggs

Contact Info

Product

Resources

About