Effects of Dietary Additives and Early Feeding on Performance, Gut Development and Immune Status of Broiler Chickens Challenged with Clostridium perfringens
| Autor: | Z. Ao, Andreas Kocher, Mingan Choct |
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| Rok vydání: | 2012 |
| Předmět: |
Veterinary medicine
Early Feeding animal structures Alternative to Antibiotics Crypt Broiler Gut Morphology Ileum Spleen Clostridium perfringens Biology medicine.disease_cause Mannanoligosaccharides (MOS) Article Jejunum medicine.anatomical_structure Immune system Animal science Acidifier Necrotic Enteritis embryonic structures medicine Animal Science and Zoology Food Science medicine.drug |
| Zdroj: | Asian-Australasian Journal of Animal Sciences |
| ISSN: | 1976-5517 1011-2367 |
| Popis: | The effects of dietary additives and holding time on resistance and resilience of broiler chickens to Clostridium perfringens challenge were investigated by offering four dietary treatments. These were a negative control (basal), a positive control (Zn-bacitracin) and two dietary additives, mannanoligosaccharides (MOS), and acidifier. Two holding times included (a) immediate access to feed and water post hatch (FED) and (b) access to both feed and water 48 h post hatch (HELD). Chicks fed Zn-bacitracin had no intestinal lesions attributed to necrotic enteritis (NE), whereas chicks fed both MOS or acidifier showed signs of NE related lesions. All dietary treatments were effective in reducing the numbers of C. perfringens in the ileum post challenge. The FED chicks had heavier body weight and numerically lower mortality. The FED chicks also showed stronger immune responses to NE challenge, showing enhanced (p |
| Databáze: | OpenAIRE |
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