This experiment was conducted to evaluate the rumen degradation characteristics of four different neutral detergent fiber/starch ratio diets. Silage maize, oat grass and corn grain were used to adjust the NDF/Starch ratio. Four total mixed rations were fed with different NDF/Starch in ratios of 0.86(),1.13(),1.56() and 2.38(), respectively. Three healthy Holstein cows in midlactation (600±21 kg body weight) with permanent ruminal cannulas were selected as experimental animals, and the rumen degradation rates of dry matter (DM),organic matter (OM),crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) of four rations were measured using nylon bag method. The culture time of rations in the rumen was 2, 4, 8, 16, 24, 36, 48 and 72 h, respectively. The results showed that differences were found in common nutritional components, and rumen effective degradability of DM, OM, CP, NDF and ADF among four different neutral detergent fiber/starch ratio diets. Ranking of the rumen effective degradability of DM, OM, CP, NDF and ADF among four diets from high to low was group >>>, >>>, >>>, >>>, >>>, respectively. In conclusion, in order to provide a basic parameters and theoretical foundation in formulating rations of dairy cows and use feed resources more effectively, ruminal degradation characteristics of rations are dissimilar, dietary ratio of NDF/Starch between 0.86 and 1.13, have the higher nutritive value among the four types of testing rations.
CIFOR-ICRAF berfokus pada tantangan-tantangan dan peluang lokal dalam memberikan solusi global untuk hutan, bentang alam, masyarakat, dan Bumi kita
Kami menyediakan bukti-bukti serta solusi untuk mentransformasikan bagaimana lahan dimanfaatkan dan makanan diproduksi: melindungi dan memperbaiki ekosistem, merespons iklim global, malnutrisi, keanekaragaman hayati dan krisis disertifikasi. Ringkasnya, kami berupaya untuk mendukung kehidupan yang lebih baik.
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CIFOR-ICRAF menerbitkan lebih dari 750 publikasi setiap tahunnya mengenai agroforestri, hutan dan perubahan iklim, restorasi bentang alam, pemenuhan hak-hak, kebijakan hutan dan masih banyak lagi – juga tersedia dalam berbagai bahasa..
CIFOR-ICRAF mendukung dampak ilmiah. Kami melakukan penelitian inovatif, memperkuat kapasitas mitra dan secara aktif terlibat dalam dialog dengan para pemangku kepentingan, menyajikan wawasan termutakhir terkait hutan, pohon, bentang alam, dan masyarakat untuk pengambilan keputusan global.
CIFOR-ICRAF berfokus pada tantangan-tantangan dan peluang lokal dalam memberikan solusi global untuk hutan, bentang alam, masyarakat, dan Bumi kita
Kami menyediakan bukti-bukti serta solusi untuk mentransformasikan bagaimana lahan dimanfaatkan dan makanan diproduksi: melindungi dan memperbaiki ekosistem, merespons iklim global, malnutrisi, keanekaragaman hayati dan krisis disertifikasi. Ringkasnya, kami berupaya untuk mendukung kehidupan yang lebih baik.
CIFOR–ICRAF achieves science-driven impact. We conduct innovative research, strengthen partners’ capacity and actively engage in dialogue with all stakeholders, bringing the latest insights on forests, trees, landscapes and people to global decision making.
CIFOR–ICRAF publishes over 750 publications every year on agroforestry, forests and climate change, landscape restoration, rights, forest policy and much more – in multiple languages.
CIFOR–ICRAF addresses local challenges and opportunities while providing solutions to global problems for forests, landscapes, people and the planet.
We deliver actionable evidence and solutions to transform how land is used and how food is produced: conserving and restoring ecosystems, responding to the global climate, malnutrition, biodiversity and desertification crises. In short, improving people’s lives.
