Dwarf versus tall elephant grass in sheep feed: which one is the most recommended for cut-and-carry?

Tall- and dwarf-sized elephant grass cultivars have been developed for cut-and-carry system. Dwarf clones have better digestibility; on the other hand, tall-sized cultivars are more productive. The aim was to verify which grass would be most recommended for cut-and-carry: tall-sized (Elephant B and...

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Veröffentlicht in:Tropical animal health and production 2021-12, Vol.53 (1), p.93-93, Article 93
Hauptverfasser: da Silva, Jordânia Kely Barbosa, da Cunha, Márcio Vieira, dos Santos, Mércia Virgínia Ferreira, Magalhães, André Luiz Rodrigues, de Mello, Alexandre Carneiro Leão, da Silva, José Ricardo Coelho, da Rocha Souza, Clóves Isaack, de Carvalho, Adriana Lima, de Souza, Evaristo Jorge Oliveira
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Sprache:eng
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Zusammenfassung:Tall- and dwarf-sized elephant grass cultivars have been developed for cut-and-carry system. Dwarf clones have better digestibility; on the other hand, tall-sized cultivars are more productive. The aim was to verify which grass would be most recommended for cut-and-carry: tall-sized (Elephant B and IRI-381) or dwarf (Taiwan A-146 2.37 and Mott) elephant grass cultivars to feed 24 male sheep, aged between 4 and 5 months, uncastrated, weighing approximately 24.08 ± 1.76 kg body weight which were sampled on intake, digestibility, performance, ingestive behavior, nitrogen balance, microbial protein synthesis, metabolic parameters, and ruminal degradability. This research was divided into two experiments: experiment 1 lasted 38 days, seven for adaptation and 31 for data collection. Elephant grass cultivars were supplied with a mineral mixture. Data collected were intake, digestibility, ingestive behavior, metabolic parameters, microbial protein synthesis, and performance submitted to a completely randomized design. For experiment 2, three rumen fistulae animals were sampled, lasting 20 days. In this case, a randomized block in split-plot design was applied. Both designs were with P  
ISSN:0049-4747
1573-7438
DOI:10.1007/s11250-020-02508-y