Virginiamycin effects on controlling necrotic enteritis infection in chickens

Area of Science:

• Poultry Science
• Animal Health
• Veterinary Medicine

Background:

• Necrotic enteritis, caused by Clostridium perfringens, is a significant enteric disease in broiler chickens.
• This disease leads to substantial economic losses in the poultry industry due to increased mortality and reduced performance.

Purpose of the Study:

• To evaluate the efficacy of virginiamycin as a therapeutic agent against experimentally induced necrotic enteritis in broiler chickens.
• To determine the optimal dosage of virginiamycin for controlling necrotic enteritis.

Main Methods:

• Two duplicate trials were conducted using male broiler chickens.
• Birds were challenged orally with Clostridium perfringens at 14 days of age.
• Virginiamycin was administered at five different dosages (5, 10, 15, 20, or 40 g/ton) with control groups (noninfected and infected).

Main Results:

• Virginiamycin treatment resulted in significantly lower mortality rates compared to nonmedicated infected birds.
• Intestinal lesion scores were significantly reduced in birds treated with virginiamycin.
• A dose-dependent response was observed, with higher virginiamycin levels correlating with better outcomes.

Conclusions:

• Virginiamycin is an effective treatment for experimentally induced necrotic enteritis in broiler chickens.
• The use of virginiamycin can mitigate the negative impacts of necrotic enteritis, including mortality and intestinal damage.
• Further research may be warranted to establish optimal field application protocols.