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Potential of a mixture of eugenol and garlic tincture to improve performance and intestinal health in broilers under necrotic enteritis challenge

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Animal Nutrition 2022年第1期8卷 26-37页

作者： Alip Kumar Nishchal K.Sharma Sarbast K.Kheravii Chake Keerqin catherine ionescu Alexandra Blanchard Shu-Biao Wu School of Environmental and Rural Science University of New EnglandArmidaleNSW2351Australia ADMi Pancosma SA A-One Business CenterLa piece 3CH-1180RolleSwitzerland

Plant extracts(PE)are gaining increased attention as potential alternatives to in-feed antimicrobials(AM)due to their known antimicrobial *** study was conducted to examine the potential of PE,a microencapsulated product composed of eugenol and garlic tincture as an alternative to AM-agent on performance and intestinal health in broilers under necrotic enteritis(NE)challenge.A total of 960 dayold mixed-sex Cobb 500 chicks were randomly distributed to 48-floor pens with 6 treatments replicated 8 times with 20 birds *** 6 treatments were as follows:UC,unchallenged control;CC,challenged control;PE,challenged group plus PE;AM,challenged group plus AM;FAP,challenged group plus a full dose of AM with PE;HAP,challenged group plus a half dose of AM with PE in starter,grower and finisher *** in the challenged groups were inoculated with Eimeria *** d 9 and Clostridium perfringens on d *** body weight gain(BWG),feed intake(FI),feed conversion ratio(FCR),and livability of birds were compromised,and intestinal lesions and mortality were increased(P<0.05)by NE challenge,illustrating a successful clinical NE *** fed AM had higher BWG and FI,and lower FCR,mortality,and intestinal lesions compared to the CC group(P<0.05).Birds fed PE had improved FCR(P<0.05)and livability(5.8%)in an overall period compared to the CC *** d 16,PE supplementation reduced ileal lesion scores in only male birds(P<0.05).Birds fed PE had decreased Eimeria maxima and Eimeria acervulina oocyst counts in caecal content(P<0.05).Birds fed PE had decreased Eimeria brunetti and total oocyst counts in caecal content,and *** oocyst counts in ileal content in only female birds(P<0.05).On d 35,PE supplementation reduced variation of BW in both male and female birds and increased yellowness(b*value,14.4%)in the *** findings suggest the potential of PE supplementation in diets to improve the performance and intestinal health of birds under clinical NE a

关键词： Plant extract Performance Alternative to antimicrobials Clinical necrotic enteritis Broiler chicken

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Ecotoxicological Effects of Cosmetic Formulas Containing Chemical and Mineral UV Filters on Seriatopora hystrix Fragments

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Journal of Cosmetics, Dermatological Sciences and Applications 2019年第3期9卷 228-234页

作者： Marius Anton ionescu Marius Anton ionescu catherine Le Breton Jean-Claude Hubaud Jean-Eric Branka Luc Lefeuvre Laboratoires Dermatologiques d’Uriage Neuilly-sur-Seine France Dermatology University Hospital “Saint-Louis” Paris France Helioscience Marseille France Ephyscience Nantes France

Background: Over the last few years sunscreen products have been suspected to be harmful to corals, especially because of their putative negative impact on symbiotic microalgae housed by these cnidarians. Previous publications reported that minerals or chemical UV filters could induce the release of microalgae from corals inducing their bleaching. The study of the ecotoxicity of finished cosmetic products containing these filters is important. Objectives: We sought to assess ex vivo the toxicity of five emulsions containing UV-filters on coral cuttings of Seriatopora hystrix. Materials and Methods: Coral cuttings were put in contact with 5 different emulsions containing UV-filters. The toxicity readout was the ability to induce polyp retraction and/or fragment bleaching of the coral cuttings of Seriatopora hystrix. Results: In our experimental conditions, none of the five tested formulas neither induced any significant polyp retraction nor triggered fragment bleaching of the coral. Conclusions: The five tested emulsions containing UV-filters did not modify coral cuttings. In vivo, larger tests are necessary to verify the results of this ex vivo pilot study.

关键词： Sunscreens Chemical UV Filters Mineral UV Filters Coral Polyp Retraction Coral Bleaching Seriatopora hystrix Ecotoxicology

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