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| Cázares-Gallegos,R; Silva-Vázquez,R; Hernández-Martínez,CA; Gutiérrez-Soto,JG; Kawas-Garza,JR; Hume,ME; Méndez-Zamora,GM. |
| ABSTRACT The current study was conducted to evaluate the dietary supplementation of Mexican oregano essential oil (MOO; Lippiaberlandieri Schauer) on broiler performance, carcass variables, meat quality, and sensory evaluation. One-day-old mixed-sex broilers were distributed in the following treatment groups, according to MOO supplementation levels: 0 = control diet; 200 = diet + 2200 mg of MOO/kg; 400 = diet + 4200 mg of MOO/kg; 600 = diet + 6200 mg of MOO/kg; 800 = diet + 8200 mg of MOO/kg; 1000 = diet + 1000 mg of MOO/kg. MOO affected (p<0.05) body weight, feed and water intake, and feed conversion ratio. The 200 and 400 mg/kg formulations gave better results at 7, 14 and 28 d than the other diets. MOO at 1000 mg/kg increased (p<0.05) slaughter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Breast; Sensory; Texture. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100320 |
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| Arzola-Alavarez,C; Castillo-Castillo,Y; Anderson,RC; Hume,ME; Ruiz-Barrera,O; Min,BR; Arzola-Rubio,A; Beier,RC; Salinas-Chavira,J. |
| ABSTRACT To study the antimicrobial and uric acid-preserving activity of pine bark tannin on poultry litter composting, antibiotic-free wood chip-based poultry litter was distributed (11 g) to 50-mL conical centrifuge tubes and immediately amended with 1.3 mL0.4 M sodium phosphate buffer (control) or with 1.3 mL condensed tannins from pine bark (Pinus palustris; 9 % tannin wt/vol in water). All tubes (n = 3 tubes/treatment) were inoculated with a novobiocin and naladixic acid-resistant Salmo-nella typhimurium (STNN) to achieve 3.0 log10 CFU/g and incubated at 37oC for 3 days to simulate an initial compost period. Wildtype E. coli and the challenge STNN strain as well as concentrations of ammonia, uric acid and urea were measured on days 0 and 3. Pine bark... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry litter; Condensed tannins; Uric acid; Bacterial pathogens. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100305 |
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