Effect of Levels of Calcium and Lysine upon the Growth of Ascaridia galli in Chicks

Cuca, Manuel; Todd, A. C.; Sunde, M. L.

doi:10.1093/jn/94.1.83

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…Other intestinal disease or peritonitis can occur as a sequel to ascarid infection (Westwood 2013). Apparently, birds fed diets with protein sourced predominantly from animal products are more resistant to ascarid infections, where chicks receiving feed lower in lysine had significantly higher worm burdens (Cuca et al 1968). Also, heavier layer breeds, such as Rhode Island breeds, are also more resilient to ascarids (McDougald 2020a).…”

Section: Nematodesmentioning

confidence: 99%

Impact of parasites on Australian laying hen welfare

Groves¹

2021

Anim. Prod. Sci.

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Cage housing systems separate the hen from her excreta and, thus, break the transmission cycle for most internal parasites. However, production systems where the birds are on litter or have access to the outdoors allow parasite life-cycle completion and, hence, these systems have seen a resurgence of intestinal parasites (worms, coccidia and histomonads). Effective registered anthelminthics are few in Australia and there are no registered products available to treat tapeworms in hens that are laying eggs for human consumption. Hence, internal parasites represent a challenge to the welfare of free-range and cage-free flocks. This is even more problematic in ‘organic’ production systems, as none of the effective treatments can be used. This is a considerable welfare issue for the organic system of production where the only measure available is lengthy range-area resting. External parasites can infest birds in any production system, although these too are regarded as more likely in extensive systems. Parasites are increasing in the layer industry and this is compounded by the parasites’ ability to infest a variety of bird species, making introduction from wild birds a significant source. New antiparasitic treatments that can be used during egg production for human consumption will be required in future.

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Section: Nematodesmentioning

confidence: 99%