Abstract
Comparison of chemical contents and <i>in vitro</i> nutrient digestibility of maize stalks from high oil maize with conventional or specific fodder maize
Highlights
High oil maize (HOM) is a new cultivar of maize, which kernels yield higher oil and more proteins, especially essential amino acids such as lysine and methionine, vitamin A and E, and other nutrients than those in conventional maize (CM)
The average contents of Neutral detergent fibre (NDF), acid detergent fibre (ADF) and lignin in HOM stalks were, %: 57.7, 34.5 and 4.7, respectively, which were by 27.3% (57.7 vs 79.4%; P
The average contents of Water soluble carbohydrates (WSC), starch and ether extract (EE) in HOM stalks were higher than fodder maize (FM) stalks by 246.0% (21.8 vs 6.3%; P
Summary
High oil maize (HOM) is a new cultivar of maize, which kernels yield higher oil and more proteins, especially essential amino acids such as lysine and methionine, vitamin A and E, and other nutrients than those in conventional maize (CM). In China, the HOM cultivars usually have average kernel oil contents at more than 8%. In some cultivars, such as HOM 298, their oil contents of grains were over 10% (Chen, 2001). The HOM cultivars possess a favourite characteristic, e.g., maintenance of green colour in their stalks for long duration at the kernel milk line stage of complete maturity (Song, 2001). Based on these characteristics, HOM cultivar stalks appeal to an ideal fodder to dairy and beef cattle and other ruminant livestock. In the present experiment, comparisons were made of chemical composition and in vitro digestibility of maize stalks from high oil maize with conventional or specific fodder maize
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