Effect of different roughage sources associated banana pseudostem hay on the nutritional and behavioral parameters and performance of F1 Holstein/Zebu lactation cows.

摘要: The objective of this study was to evaluate the association pseudostem hay banana trees different roughages in diet F1 Holstein/Zebu cows on their nutrient intake and digestibility, nitrogen balance, microbial synthesis, ingestive behavior, milk production. experiment distributed two simultaneous 4 × 4 Latin squares. treatments were as follows: 1-sorghum silage exclusive dietary roughage; 2-sorghum (70%) associated with 30% (dry matter basis); 3-70% elephant grass 4-70% sugarcane basis). roughage/concentrate ratio 75:25. animals fed sorghum presented 14.45% higher (p = 0.01) that grass. diets containing showed digestibility neutral detergent fiber corrected for ash protein 57.75% (p < 0.01) than other diets. Cows spent more time (p = 0.01). Diets did not influence yield (p = 0.47), 3.5 fat (p = 0.22), final weight (p = 0.06), efficiency (p = 0.57), presenting a mean 14.16 kg/day, 15.94 kg/day, 590 kg, 0.9 kg milk/kg ingested dry matter, respectively. utilization roughage can be an alternative cows.