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    Effects of grain processing methods on the expression of genes involved in volatile fatty acid transport and pH regulation, and keratinization in rumen epithelium of beef cattle - Fig 1

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    <p>A—Effect of ingredients and processing methods on keratinization in rumen epithelium of Nellore bulls. B—Longitudinal section from rumen tissue of Nellore bulls fed dry ground corn, dry ground sorghum, reconstituted corn, and reconstituted sorghum, showing the normal histology of these animals. Standard error of the mean, 4.37; Ingredient <i>P</i>-value, 0.45; Processing method <i>P</i>-value, 0.83; Ingredient x Processing method <i>P</i>-value, 0.47 (Fisher’s least significant difference test).</p

    Mechanisms of volatile fatty acid transport through rumen and proteins involved in pH control of rumen epithelium [Adapted from Stevens and Hume [30] and Connor et al. [5]].

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    <p>Genes with lower expression in the rumen epithelium of animals fed reconstituted corn are presented in orange [<i>DRA</i> (<i>P</i> = 0.03), and NHE2 (trend; <i>P</i> = 0.09)]. Genes that tended to have lower mRNA expression in the rumen epithelium of animals fed reconstituted grains are presented in green [<i>NHE1</i> (<i>P</i> = 0.10), and <i>PAT1</i> (<i>P</i> = 0.06)]. AE2 = <i>anion exchanger 2</i>; DRA = <i>downregulated in adenoma</i>; MCT1 = <i>monocarboxylate transporter 1</i>; MCT4 = <i>monocarboxylate transporter 4</i>; NHE1 = <i>Na</i><sup><i>+</i></sup><i>/H</i><sup><i>+</i></sup> <i>exchanger 1</i>; NHE2 = <i>Na</i><sup><i>+</i></sup><i>/H</i><sup><i>+</i></sup> <i>exchanger 2</i>; NHE3 = <i>Na</i><sup><i>+</i></sup><i>/H</i><sup><i>+</i></sup> <i>exchanger 3</i>; PAT1 = <i>putative anion transporter</i>; H<sup>+</sup>ATPase = <i>vacuolar-type ATPase</i>.</p
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