Efeitos de extratos vegetais e antimicrobianos sobre a digestibilidade aparente, o desempenho, a morfometria dos órgãos e a histologia intestinal de leitões recém-desmamados
By L. L. Oetting, Carlos Eduardo Utiyama, Pedro Agostinho Giani, U. Ruiz, V. S. Miyada. 2006
84 citations recorded by the source corpus.
The purpose of this trial was to evaluate the effects of antimicrobial and herbal extracts on digestibility, performance, morphology and histology of weanling pigs. One hundred and twenty weaned pigs were used to compare five treatments: control - basal diet; antimicrobial - basal diet plus Zn bacitracina, olaquindox, and colistin (50 ppm of each); herbal extract A, B and C - basal diet plus 700 ppm, 1,400 ppm and 2,100 ppm of herbal extract, respectively, with 12 replications (pens of two pigs each) per treatment in a 35-d randomized complete block design experiment. The herbal extract consisted of mixture of equal amounts of essential oils of thyme, clove, oregano, eugenol and carvacrol. In digestibility assay, 40 pigs (four replications per treatment) were fed a diet with chromium oxide (marker method). On 35th day of experimental period, one animal of each experimental unit was slaughtered and samples were collected for analysis. The herbal extracts increased dietary DM apparent digestibility compared to control and antimicrobial treatments. The antimicrobial agents improved performance of weanling pigs during all phases of the experimental period compared to the other treatments. Pigs fed high dietary level of herbal extract showed better results for pig performance and other variables. The antimicrobial treatment improved the relative weights of intestinal tract and empty small intestine and improved ileum villus height and ileum villus height:crypt depth ratio of animals. However, more studies are necessary to evaluate which type of essential oil should be used and the best combination and inclusion level of herbal extract in the diet.
Subfields: Animal Science and Zoology, Small Animals
View Paper: https://www.semanticscholar.org/paper/7d4650ad647f5e94431fef817c7b4db9906e1ad7
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In Animal Science and Zoology
Citations in the corpus
- Alternatives to antibiotic growth promoters in prevention of diarrhoea in weaned piglets: a review. (2018, background): “The existing data shows that their effect depends on the type of plant extract, correct combination and appropriate dosage (Oetting et al., 2006; Utiyama et al., 2006).”
- Use of phytogenic products as feed additives for swine and poultry. (2008, background): “Available reports have shown increased, unchanged, and reduced villi length and crypt depth in the jejunum and colon for broilers and pigs treated with phytogenic feed additives (Namkung et al., 2004; Demir et al., 2005; Jamroz et al., 2006; Nofrarias et al., 2006; Oetting et al., 2006).”
- Efficacy of Phytogenic Feed Additive on Performance, Production and Health Status of Monogastric Animals – A Review (2017, background): “Likewise, Oetting et al. (2006) indicated birds fed 700 ppm, 1,400 ppm and 2,100 ppm of herbal extract consisting of a mixture of essential oils of thyme, clove, oregano, eugenol and carvacrol did not have any significant change in gastrointestinal morphology.”