Πλοήγηση ανά Θέμα "TRICHOSTRONGYLUS-COLUBRIFORMIS"
Αποτελέσματα 1-13 από 13
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Consequences of infection pressure and protein nutrition on periparturient resistance to Teladorsagia circumcincta and performance in ewes
(2009)The consequences of protein nutrition on the degree of periparturient relaxation of immunity to nematode parasites in sheep may be more pronounced at higher levels of infection pressure. Here, we investigated interactive ... -
Consequences of protein supplementation for anorexia, expression of immunity and plasma leptin concentrations in parasitized ewes of two breeds
(2009)The periparturient relaxation of immunity (PPRI) against parasites in ewes has a nutritional basis. We investigated whether ewes experience a reduction in food intake (anorexia) during PPRI and if the magnitude of anorexia ... -
The effect of chicory (Cichorium intybus) and sulla (Hedysarum coronarium) on larval development and mucosal cell responses of growing lambs challenged with Teladorsagia circumcincta
(2006)The aim of this study was to investigate the effects of grazing different bioactive forages on acquired immunity against Teladorsagia circumcinta infection. The development of immunity was assessed by following the response ... -
The effects of pathogen challenges on the performance of naive and immune animals: the problem of prediction
(2007)Predictive frameworks for performance under both physical and social stressors are available, but no general framework yet exists for predicting the performance of animals exposed to pathogens. The aim of this paper was ... -
Exploiting synergisms and interactions in the nutritional approaches to parasite control in sheep production systems
(2008)Occurrence of resistance to anthelmintics and increased awareness about drug residues entering the food chain and harming the environment, have called for a reduction in the regular, preventive use of anthelmintics and an ... -
In silico exploration of the mechanisms that underlie parasite-induced anorexia in sheep
(2011)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 ... -
Interactions between parasitic infections and reproductive efficiency in sheep
(2015)This review article summarises the many reports in the literature, confirming that, in sheep, parasitic infections can adversely affect reproductive efficiency; examples, which refer to all parts of the reproductive cycle ... -
Is anorexia during infection in animals affected by food composition?
(2010)A reduction in voluntary food intake, referred to as anorexia, is a consistent feature of infection in both humans and animals. Its Occurrence is considered a paradox and the magnitude and duration of anorexia appear to ... -
Medicinal plants for helminth parasite control: facts and fiction
(2007)The use of medicinal plants for the prevention and treatment of gastro-intestinal parasitism has its origin in ethnoveterinaty medicine. Although until recently the majority of the evidence on the antiparasitic activity ... -
A model for predicting feed intake of growing animals during exposure to pathogens
(2006)A general model is proposed for predicting the effects of subdinical pathogen challenges of different doses and virulence on the relative feed intake (RFI) of animals. The RFI is defined as the feed intake (FI, kg/d) of ... -
A model to account for the consequences of host nutrition on the outcome of gastrointestinal parasitism in sheep: model evaluation
(2007)This paper describes sensitivity analyses and expectations obtained from a mathematical model developed to account for the effects of host nutrition on the consequences of gastrointestinal parasitism in sheep. The scenarios ... -
Rapid improvement of immunity to Teladorsagia circumcincta is achieved through a reduction in the demand for protein in lactating ewes
(2006)Protein supplementation can improve the resistance to parasites of periparturient ewes, as indicated by reduced nematode egg excretion and worm burdens. However, the rate at which this improvement can occur is largely ... -
Use of trade-off theory to advance understanding of herbivore-parasite interactions
(2006)1. Trade-off theory has been extensively used to further our understanding of animal behaviour. In mammalian herbivores, it has been used to advance our understanding of their reproductive, parental care and foraging ...