A model was used to investigate two mechanisms describing reductions in food intake (anorexia) observed during gastrointestinal parasitism in lambs, and to explore relationships between anorexia and food composition. The mechanisms were either a reduction in intrinsic growth rate, leading to a consequent reduction in food intake (mechanism 1; M1), or a direct reduction in food intake (mechanism...

El presente estudio evalúa la eficacia de fenbendazol, levamisol e ivermectina en el control nematodos bovinos lecheros predios tres provincias región Cajamarca, Perú. Se utilizaron 30 hembras bovinas mayores seis meses por cada predio (E-I, E-II y E-III), distribuidas grupos homogéneos (n=10) acuerdo con las cargas infección natural gastrointestinales. Utilizando un principio activo para trata...

IgA and IgE activity against Teladorsagia circumcincta was investigated in a flock of Texel lambs following natural, mixed nematode infection among lambs. The distribution of IgA activity was similar to a gamma distribution whereas IgE activity was different. Box-Cox analysis demonstrated that X0.25 was a suitable transformation to normalise IgE responses. The transformed IgE activity was under...

The kinetic properties of enzymes are often reported using the apparent KM and Vmax appropriate to the standard Michaelis-Menten enzyme. However, this model is inappropriate to enzymes that have more than one substrate or where the rate expression does not apply for other reasons. Consequently, it is desirable to have a means of estimating the appropriate kinetic parameters from the apparent va...

The prevalence of gastrointestinal (GI) parasites and the efficacy of Dectomax (Doramectin) against these parasites was studied. For this purpose, 50 camels were selected from different localities of Faisalabad, their faecal samples were collected and examined for the parasitism. The overall prevalence of G1 parasites was 60%. Species wise prevalence of these parasites was: 20, 14, 8, 4, 4 and ...

Our current understanding of differences in the epidemiology gastrointestinal nematode (GIN) species co-grazed sheep and goats is inadequate with reference to development sustainable control strategies. The next-generation metabarcoding sequencing method referred as ‘nemabiome’ allows some these be explored describe intensity co-infecting GIN species. We applied this platform study that were on...

A study on the influence of gastrointestinal trichostrongyles on ram fertility was performed. Two groups of semen donor rams (Sarda breed) were utilized; one was experimentally infected with Haemonchus contortus, Trichostrongylus colubriformis and Teladorsagia circumcincta and the other was used as a control group. In all animals, coprological, haematological and reproductive parameters were st...