Replacement of corn by forage cactus in the total mixed rations for crossbreed lactating cows

Revista Brasileira de Zootecnia

Araújo, Paulo Renato Barros¹  Brasil, Lúcia Helena de Albuquerque¹  Azevedo, Marcilio de¹  Ferreira, Marcelo de Andrade¹  Santos, Mércia Virgínia Ferreira dos¹  Lima, Rosângela Maria Brito¹  Bispo, Safira Valença¹  Santos, Djalma Cordeiro dos²  Véras, Antonia Sherlânea Chaves¹ 

[1] Universidade Federal Rural de Pernambuco;Empresa Pernambucana de Pesquisa Agropecuária

关键词: digestibility;    energy;    intake;    milk production;    semi-arid    IntroduçãoAs características climáticas do nordeste afetam diretamente a potencialidade pecuária da região;    principalmente pela menor quantidade de forragens ocasionada pelas secas periódicas de maior ou menor intensidade;   

DOI  :  10.1590/S1516-35982004000700024

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The experiment was conduced to evaluate the effects of corn replacement for forage cactus on the performance of crossbreed lactating cows and nutrient digestibility. Eight cows were assigned a two latin square design in a factorial 2 x 2 arrangement (two forage cactus cultivars, with or without corn).There was not interaction between forage cactus and corn and the effect of both were analyzed in an isolated way. The intake of dry matter, organic matter, acid detergent fiber, crude protein, ether extract and total carbohydrates were not affected by the forage cactus. Animals that received giant cultivar presented larger neutral detergent fiber intake. The diets with corn presented larger dry matter intake (kg/day and % of LW). The intake of TDN, the coefficients of digestibility of all nutrients, the fat corrected milk production, fat content and kg of milk: dry matter intake ratio were not affected not by the forage cactus cultivars neither by the inclusion of corn.

【 授权许可】

CC BY-NC