<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The effect of vitamin A deficiency was studied in chickens infected with 500 Ascaridia galli eggs and controls. Diet 1 (deficient, 500 IU vitamin A or 172 μg retinol acetate per kg diet), Diet 2 (deficient, 1000 IU vitamin A or 344 μg retinol acetate per kg diet) and Diet 3 (sufficient, 1500 IU vitamin A or 516 μg retinol acetate per kg diet) were assigned to 46 chickens each. Clinical signs, weight gains, livers’ weights, vitamin A levels, worm burdens and parasite eggs’ excretions were recorded.</p><p>Infected chickens had lower weight gains than the controls fed alike. Chickens given Diet 1 stored lesser vitamin A in liver than those fed Diet 3. Although worm counts in the 3 groups did not differ significantly, chickens fed Diet 1 excreted more A. galli eggs than those fed the 2 other diets. Female worms harboured by chickens fed Diet 1 had higher fecundity at week 5 pi than those of chickens fed Diet 2. Results indicated that Vitamin A is important for poultry in the moderation of the infection with A. galli.</p></abstract>

The effect of vitamin A deficiency was studied in chickens infected with 500 Ascaridia galli eggs and controls. Diet 1 (deficient, 500 IU vitamin A or 172 μg retinol acetate per kg diet), Diet 2 (deficient, 1000 IU vitamin A or 344 μg retinol acetate per kg diet) and Diet 3 (sufficient, 1500 IU vitamin A or 516 μg retinol acetate per kg diet) were assigned to 46 chickens each. Clinical signs, weight gains, livers’ weights, vitamin A levels, worm burdens and parasite eggs’ excretions were recorded.Infected chickens had lower weight gains than the controls fed alike. Chickens given Diet 1 stored lesser vitamin A in liver than those fed Diet 3. Although worm counts in the 3 groups did not differ significantly, chickens fed Diet 1 excreted more A. galli eggs than those fed the 2 other diets. Female worms harboured by chickens fed Diet 1 had higher fecundity at week 5 pi than those of chickens fed Diet 2. Results indicated that Vitamin A is important for poultry in the moderation of the infection with A. galli.

Effect of a minor vitamin A deficiency on the course of infection with Ascaridia galli (Schrank, 1788) and the resistance of chickens

Département des Productions Animales, Institut National de la Recherche Agronomique du Niger, BP 429, Niamey, Niger

Danish Centre for Experimental Parasitology, Department of Veterinary Pathobiology, The Royal Veterinary and Agricultural University, Dyrlægevej 100, 1870, Frederiksberg C, Denmark

Department of Animal Nutrition and Physiology, Danish Institute of Agricultural Sciences, Blichers Allé 1, Postbox 50, 8830, Tjele, Denmark

Helminthologia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The effect of vitamin A deficiency was studied in chickens infected with 500 Ascaridia galli eggs and controls. Diet 1 (deficient, 500 IU vitamin A or 172 μg...

Effect of a minor vitamin A deficiency on the course of infection with Ascaridia galli (Schrank, 1788) and the resistance of chickens

Published Online: Mar 01, 2007

Page range: 3 - 9

DOI: https://doi.org/10.2478/s11687-006-0047-4

Keywords
chicken, Ascaridia galli, vitamin A, minor deficiency, resistance

© 2006 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of a minor vitamin A deficiency on the course of infection with Ascaridia galli (Schrank, 1788) and the resistance of chickens

Published Online: Mar 01, 2007

Page range: 3 - 9

DOI: https://doi.org/10.2478/s11687-006-0047-4

Keywordschicken, Ascaridia galli, vitamin A, minor deficiency, resistance

© 2006 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
chicken, Ascaridia galli, vitamin A, minor deficiency, resistance