<b>Nutritional characteristics of sorghum hybrids hay (<i>sorghum sudanense</i> x <i>sorghum bicolor</i>)

Abstract

ABSTRACT. This study evaluated the nutritional characteristics of hay of nineteen hybrids between sorghum and Sudan grass. The experimental design was a randomized block with nineteen treatments and three replications. The chemical characteristics of the respective hays were analyzed 52 days after sowing and 45 and 49 regrowth days. Data were analyzed by analysis of variance, and when the F test was significant, the treatment means were compared by the Scott and Knott test at 5%. Genotypes 1013026 and 1014020 showed similar dry matter content. As for ether extract content, the highest values ranged from 2.20 to 2.66%. Higher values of minerals were observed in hybrids 1013026 and 1011005. In relation to crude protein, higher content values were reported for hybrids 1013021 and 1013020 (14.59 and 15.47% CP). When evaluating the neutral detergent fiber content, lower values varied between 56.05 and 57.07% for hybrids 1013016 and 1011009. Considering the content of acid detergent fiber, values ranged from 32.70 to 35.78%. Values of dry matter digestibility were higher than 50%. All hybrids provide quality hay, however the hybrid 1014019 showed the best nutritional value.

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)

“…The mean NDF concentration of 59.30% reported by Lima et al (2017) when evaluating hay from sorghum hybrids grown for cutting and grazing was similar to that found in the present study (61.15%). The NDF values observed in hybrids in the present study and the study of Lima et al (2017) are associated with early haymaking (57 days and 52 days), respectively.…”

“…In a high-fiber diet, the energy density tends to be low, with intake limited by rumen fill; then, animal performance may be compromised. On the other hand, low fiber contents increase the risk of metabolic disorders (LIMA et al, 2017).…”

“…The use of sorghum-sudangrass hybrids has increased in livestock feeding due to their ease of cultivation, rapid establishment and growth. In addition to their ease of handling for cutting or grazing, these hybrids have good nutritive value and high forage production, making them a feasible option to supply green forage of high nutritional value (LIMA et al, 2017).…”

Sorghum silage quality as determined by chemical–nutritional factors

“…These authors found that in maize silage, ADIN above 120 g/kg of total nitrogen indicates overheating in the fermentative process of ensiling. The ADIN content is associated with protein bonding with lignin, tannin–protein complexes and Maillard reaction products, which confers its high indigestibility (Lima et al., 2017). However, overheating does not appear to be an issue in this trial because fresh and ensiled sorghum had similar ADIN values.…”

Productivity nutritive value and economic potential of irrigated fodder in two regions of Ghana

“…It tends to be drought resistant and resilient in infertile soils and produces well with relatively low levels of fertilizer inputs and is sometimes referred to as a “climate smart” forage species (Ngila et al., 2016). Forage sorghum has been reported as another example of a pasture species with resistance to drought stress, which reduces the effects of the forage production seasonality and ensures the maintenance of animal production throughout the year (Lima et al., 2017). It is a short‐lived perennial forage species, easily established from seed with rapid growth and fodder yield accumulation within the year of establishment.…”