Chemical and biological additives in the ensiling of sugar cane: 1. chemical composition, dry matter intake, digestibility and ingestive behavior

Revista Brasileira de Zootecnia

Paziani, Solidete de Fátima⁴  Schmidt, Patrick³  Wechsler, Francisco Stefano³  Mari, Lucas José¹  Nussio, Luiz Gustavo¹  Pedroso, André de Faria² 

[1] USP, Piracicaba;EMBRAPA;UNESP;APTA, Votuporanga

关键词: ethanol;    lactic acid;    Lactobacillus buchneri;    Lactobacillus plantarum;    sodium benzoate;    urea     IntroduçãoA conservação da cana-de-açúcar na forma de silagem tem despertado grande interesse tanto de produtores como de pesquisadores;    em virtude de seus benefícios em logística e operacionalidade;   

DOI  :  10.1590/S1516-35982007000700027

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The effect of the addition of additives in the ensiling of sugar cane (Saccharum officinarum L.) on chemical composition of silages, ingestive behavior, voluntary feed intake and digestibility by beef steers. Five rumen-cannulated Nelore steers were allotted to a 5 x 5 latin square design. The steers were placed in metabolic cages and they were fed with diets with 65% forage (%DM). Five silages were evaluated (wet basis): Control sugar cane, no additives; Urea sugar cane + 0.5% of urea; Benzoate sugar cane + 0.1% of sodium benzoate; LP - sugar cane inoculated with Lactobacillus plantarum (1 x 106 cfu/g forage); LB sugar cane inoculated with L. buchneri (3.6 x 105 cfu/g forage). During 90 days, before the animal feeding, the forage was stocked in vertical silos. The chemical composition of sugar cane changed after the ensiling, as compared to fresh sugar cane, with reduction of water soluble carbohydrates and in vitro digestibility and relative increase in the NDF and ADF content. Ethanol (0.30% DM) and organic acids (0.99% of lactic and 2.31% of acetic acid) contents were low and similar among silages. The additives applied in the ensiling did not promote alterations in the voluntary intake and apparent digestibility of DM that showed average values of 7.2 kg/day and 63.6%, respectively. The ingestive behavior of the animals also was not altered, with average time spent in feeding, rumination and idleness were: 230.6, 519.6 and 672.8 minutes/day activities, respectively.So, the additives applied in the sugar cane forage resulted in slightly changes in most of the studied variables.

【 授权许可】

CC BY-NC