Nutritive value of hay from sorghum-sudangrass hybrids (Sorghum sudanense vs. Sorghum bicolor) / Valor nutritivo do feno de híbridos de sorgo com capim-sudão (Sorghum sudanense vs. Sorghum bicolor)

Ingrid Thalia Prado de Castro, Hosnerson Renan de Oliveira Santos, Mauro Pereira de Figueiredo, Alberto Jefferson da Silva Macêdo, Mário Henrique Melo e Lima, Jhon Barbosa da Silva, Amanda Aparecida Rocha Silva, Bárbara Louíse Pacheco Ramos

Abstract


This study aimed to evaluate the nutritive value of hay from ten sorghum-sudangrass hybrids. A randomized block design with ten treatments and three replicates was used. The chemical composition was analyzed 57 days after germination. Hay from hybrids BRS 810 and BRS 802 showed similar dry matter content, although it was lower compared to other genotypes (86.98; 86.47%). Ash content was highest for the hybrid BRS 810 (6.46%). The highest crude protein content was found in hybrids BRS 810, 1013020, and BRS 802 (14.01; 12.84 and 11.96%, respectively). The lowest neutral detergent fiber (NDF) concentrations were observed in hybrids 1134029 and BRS 810, ranging from 57.72 to 58.57%. The acid detergent fiber (ADF) concentration was least in hybrids BRS 810 and 1013029 (30.30 and 30.31%). The highest lignin content was found in hybrids 1013020 and 1134023 (5.82 and 5.41%, respectively). Values of dry matter digestibility were higher than 50%. Hay from all hybrids was of good quality, but hybrids 1013020, BRS 810, BRS 802 were better in terms of nutritive value.


Keywords


Cutting and grazing, Digestibility, Fodder, Genotype, Haymaking.

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DOI: https://doi.org/10.34117/bjdv6n9-061

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