Effect of ethanol extract from Enterolobium cyclocarpum fruit on Leghorn chickens exposed to Eimeria.

IF 1.7 3区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Rosalinda Urtecho-Novelo, Ronald Santos-Ricalde, Luis Sarmiento-Franco, Juan Felipe Torres-Acosta, Rocío Borges-Árgaez
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Abstract

There are concerns about residues of drugs in meat that are used to prevent coccidiosis in chickens. Natural compounds are an alternative to drugs. Two studies investigated the effect of an extract of Enterolobium cyclocarpum fruits (EEC) in the feed of male Leghorn chickens exposed to Eimeria spp. In the first experiment, the administration of EEC after infection with Eimeria spp. was investigated over 16 days. One thousand chickens were randomly housed in 20 pens of 1 m2 each. The pens were randomly assigned to each treatment. Five treatments were administered, containing 150, 300 and 450 mg/kg of EEC in the feed, the fourth treatment (C) contained 0.5 g/kg of a commercial anticoccidial, and the fifth treatment provided no treatment (WA). The second experiment lasted 18 days. Administration of the EEC began five days before the chickens were infected with Eimeria spp. Four hundred and eighty chickens were randomly allocated to 24 pens of 1 m2. The pens were randomly assigned to each treatment. In the second experiment, the same five treatments were tested and one additional treatment containing 300 mg EEC plus 1 g of polyethylene glycol (PEG)/kg of feed (E300PEG). In the experiment one chickens in the EEC treatments had lower faecal oocyst excretion (OE) on day 14 post infection with Eimeria spp., than chickens in the WA treatment (P < 0.05). A reduction in live weight gain (LWG) was observed in the EEC treatments (P < 0.05). In the second experiment, the excretion of oocysts in chickens from the EEC and E300PEG treatments on day 13 post-infection with Eimeria spp. was the same as in the C treatment and lower than in the WA treatment (P < 0.05). LWG was lower in the EEC treatments than in the C treatment (P < 0.05). However, the Chickens in the E300PEG and C treatments had similar LWG (P > 0.05) suggesting that PEG inhibits the negative effect of EEC tannins on LWG. In conclusion, the addition of EEC to chicken feed reduced both OE and LWG. Treatment with EEC and PEG (E300PEG) reduced the excretion of oocysts without negative effects on LWG.

从Enterolobium cyclocarpum果实中提取的乙醇提取物对感染艾美耳病的莱格恩鸡的影响。
人们担心用于预防鸡球虫病的药物在肉类中的残留。天然化合物是药物的替代品。在第一项实验中,研究人员对感染艾美耳病菌的雄性莱格农鸡饲料中添加肠球虫果实提取物(EEC)的效果进行了为期 16 天的调查。一千只鸡被随机饲养在 20 个每个面积为 1 平方米的鸡圈中。这些鸡栏被随机分配到每个处理中。五个处理的饲料中分别含有 150、300 和 450 毫克/千克的 EEC,第四个处理(C)含有 0.5 克/千克的商用抗球虫药,第五个处理(WA)不提供任何处理。第二次实验持续了 18 天。480 只鸡被随机分配到 24 个 1 平方米的鸡栏中。这些鸡栏被随机分配到每个处理中。在第二项实验中,对同样的五种处理方法进行了测试,并增加了一种含有 300 毫克 EEC 和 1 克聚乙二醇 (PEG) / 千克饲料(E300PEG)的处理方法。在实验一中,EEC 处理的鸡在感染艾美耳病菌后第 14 天的粪便卵囊排泄量(OE)低于 WA 处理的鸡(P 0.05),这表明 PEG 可抑制 EEC 单宁酸对 LWG 的负面影响。总之,在鸡饲料中添加 EEC 可减少 OE 和 LWG。使用 EEC 和 PEG(E300PEG)处理可减少卵囊的排泄,但不会对 LWG 产生负面影响。
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来源期刊
Tropical animal health and production
Tropical animal health and production 农林科学-兽医学
CiteScore
3.40
自引率
11.80%
发文量
361
审稿时长
6-12 weeks
期刊介绍: Tropical Animal Health and Production is an international journal publishing the results of original research in any field of animal health, welfare, and production with the aim of improving health and productivity of livestock, and better utilisation of animal resources, including wildlife in tropical, subtropical and similar agro-ecological environments.
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