论文部分内容阅读
Prevalence and intensity of infection with gastrointestinal helminths in adult free-range chickens i
【机 构】
：
Centro de Investigacion en Ganader Campesina(CIGAC),El Sauce,Nicaragua
【出 处】
：
15th World Veterinary Poultry Congress(第十五届禽病大会)
【发表日期】
：
2007年期
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