Production and chemical composition of three sugarcane cultivars grown under Af climate conditions

Revista Brasileira de Zootecnia

Augusto Sousa Miranda¹  Felipe Nogueira Domingues¹  Bruno Spacek Godoy¹  Ricardo Pedroso Oaigen¹  Aníbal Coutinho Do Rêgo¹  Cristian Faturi¹  Renato Pinto Corrêa¹  Flávio Da Silva¹ 

关键词: neutral detergent fiber;    ruminant nutrition;    Saccharum officinarum;   

DOI  :  10.1590/S1806-92902015001100002

来源: SciELO

【 摘 要 】

The objective of this study was to evaluate the chemical composition and yield of three sugarcane cultivars grown under Af climate conditions. Three sugarcane cultivars were examined, namely, IACSP93-6006, RB83-5486, and SP79-1011, in a randomized block design with three treatments, four blocks, and two replicates per block; means were compared using Tukey's test at 5% probability level. Significant differences were observed for dry matter, ether extract, crude protein, acid detergent fiber, lignin (LIG), cellulose, neutral detergent fiber corrected for ash and protein (NDFap), total carbohydrates, carbohydrate fractions B2 and C, and dry matter yield. The fiber components (NDFap, LIG, and fraction C) displayed low values. The cultivars produced high dry matter yields, especially IACSP93-6006 and SP79-1011. There were no differences among sucrose (Pol) values and the NDF/Pol ratios. The low Pol values indicate that sugarcane grown under Af climate conditions does not produce high levels of sucrose. The three sugarcane cultivars grown under the Af climate conditions produce high yields of DM/ha but low concentrations of the fiber components, as well as low Pol concentrations.

【 授权许可】

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