Scholarlink

<p>The effects of oral inoculation with a probiotic containing <i>Rhodotorula mucilaginosa</i> and <i>Trichoderma longibrachiatum</i> were evaluated during the first 60 d of life in Gir x Holstein dairy calves across two seasons. Twenty calves were assessed in northern Minas Gerais, Brazil (<i>n</i> = 10 in period 1, late winter–spring; <i>n</i> = 10 in period 2, late summer–autumn). The study used a 2 × 2 factorial arrangement with probiotic supplementation (with or without fungal inoculation) and experimental periods as factors. Growth performance, structural development, and nutrient intake were evaluated. Fungal supplementation increased total hip width gain (4.5 vs. 3.6&#xa0;cm) and tended to increase hay dry matter intake during the preweaning phase in both periods. However, supplementation did not influencied other performance parameters (<i>p</i> &gt; 0.05). Calves evaluated during Period 2 showed greater average daily gain (0.674 vs. 0.537&#xa0;kg/d) and improved feed efficiency (1.44 vs. 1.69) compared with Period 1. In conclusion, fungal inoculation enhanced structural growth, specifically hip width gain, whereas overall performance was more strongly influenced by season. Dairy calves reared under a tropical outdoor system in a semi-arid region exhibited improved growth performance during late summer and autumn.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Growth performance and nutrient intake of Gir x Holstein dairy calves reared in a tropical outdoor system and inoculated with rumen-derived fungi

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月21日

查看全文
  • Ellen Batista Pereira,
  • Luciana Castro Geraseev,
  • Felipe Gomes da Silva,
  • Leilla Magalhães Queiróz,
  • Flávio Emanuel Gomes Silva,
  • Júlia de Melo Viana,
  • Idael Matheus Góes Lopes,
  • Eduardo Robson Duarte

摘要

The effects of oral inoculation with a probiotic containing Rhodotorula mucilaginosa and Trichoderma longibrachiatum were evaluated during the first 60 d of life in Gir x Holstein dairy calves across two seasons. Twenty calves were assessed in northern Minas Gerais, Brazil (n = 10 in period 1, late winter–spring; n = 10 in period 2, late summer–autumn). The study used a 2 × 2 factorial arrangement with probiotic supplementation (with or without fungal inoculation) and experimental periods as factors. Growth performance, structural development, and nutrient intake were evaluated. Fungal supplementation increased total hip width gain (4.5 vs. 3.6 cm) and tended to increase hay dry matter intake during the preweaning phase in both periods. However, supplementation did not influencied other performance parameters (p > 0.05). Calves evaluated during Period 2 showed greater average daily gain (0.674 vs. 0.537 kg/d) and improved feed efficiency (1.44 vs. 1.69) compared with Period 1. In conclusion, fungal inoculation enhanced structural growth, specifically hip width gain, whereas overall performance was more strongly influenced by season. Dairy calves reared under a tropical outdoor system in a semi-arid region exhibited improved growth performance during late summer and autumn.