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      Effects of dietary essential oil components on growth performance, digestive enzymes and lipid metabolism in female broiler chickens.

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          Abstract

          1. The present experiment was conducted to describe the effects of thymol, cinnamaldehyde and a commercial preparation of essential oil components (CRINA Poultry), in female broilers. Feed and water were provided for ad libitum consumption. 2. Feed intake, weight gain and feed:gain ratio were not different among the treatments. Water intake was significantly lowered by cinnamaldehyde. Relative liver weight (g/100 g of body weight) was highest in birds given thymol, but this was seen only at the age of 21 d and not at 40 d. Patterns of digestive enzymes in pancreatic tissue were similar for the 4 treatments. 3. Amylase activity in intestinal digesta was highest in chickens given CRINA Poultry for 21 d, but the effect had disappeared after 40 d. Ileal digestibility coefficients for starch and protein were high and identical for all treatments. 4. Fatty acid composition of diet was reflected in that of adipose tissue. Plasma lipid concentrations were not changed by any dietary treatment. 5. Thus, the present results show no effect of essential oil constituents on growth performance in female broiler chickens, but it cannot be excluded that positive effects would have been observed under less hygienic environmental conditions or when using a less digestible diet.

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          Author and article information

          Journal
          Br Poult Sci
          British poultry science
          Informa UK Limited
          0007-1668
          0007-1668
          Jul 2003
          : 44
          : 3
          Affiliations
          [1 ] Department of Nutrition, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands. kyung-woo.lee@vet.uu.nl
          Article
          10.1080/0007166031000085508
          12964629
          0b86d13f-350a-4b2e-ae9f-b006ed97c350
          History

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