Interaction between nutrition and Eimeria acervulina infection in broiler chickens: development of an experimental infection model.
In three experiments broiler chickens were inoculated with sporulated Eimeria acervulina oocysts at 18 d of age. Feed intake, body-weight gain, brush-border enzyme activities, fat digestion, protein digestion and protein retention were measured. Body-weight gain was reduced during the acute phase of the infection and increased during the recovery phase of the infection. Feed intake was decreased on day 4 and day 5 postinfection (PI) and increased from day 7 to day 11 PI. Maltase (EC 3.2.1.20) and sucrase (EC 3.2.1.48) activities were decreased on day 5 PI in all intestinal segments. In Expts 2 and 3, however, maltase activity was increased in the ileum. Fat digestion was decreased from day 2 to day 11 PI. N digestion and retention were decreased from day 2 to day 11 PI.
Adams
C
C
CLO-Institute for Animal Nutrition De Schothorst, Lelystad, The Netherlands.
Vahl
H A
HA
Veldman
A
A
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D002645:Chickens / Q000378:metabolism*; D003048:Coccidiosis / Q000378:metabolism / Q000662:veterinary*; D004041:Dietary Fats / Q000378:metabolism; D004044:Dietary Proteins / Q000378:metabolism; D004386:Duodenum / Q000378:metabolism; D004435:Eating; D004539:Eimeria; D005260:Female; D007583:Jejunum / Q000378:metabolism; D008954:Models, Biological; D011201:Poultry Diseases / Q000378:metabolism*; D013393:Sucrase / Q000378:metabolism; D000520:alpha-Glucosidases / Q000378:metabolism
D004041:Dietary Fats; D004044:Dietary Proteins; D000520:alpha-Glucosidases; D013393:Sucrase