Pigs

Developmental expression of LTβR and differential expression in Escherichia coli F18 resistant/sensitive piglets

R. W. Xia, Sun, L., Qin, W. Y., Gan, L. N., Bao, W. B., Wu, S. L., Xia, R. W., Sun, L., Qin, W. Y., Gan, L. N., Bao, W. B., and Wu, S. L., Developmental expression of LTβR and differential expression in Escherichia coli F18 resistant/sensitive piglets, vol. 15, p. -, 2016.

We analyzed LTβR mRNA expression in piglets from birth to weaning and compared the differential expression between Escherichia coli F18-resistant and sensitive populations to determine whether this gene could be used as a genetic marker for E. coli F18 resistance. Sutai piglets of different age groups (8, 18, 30, and 35 days; N = 4 each) and piglets demonstrating resistance/sensitivity to E. coli F18 were used. LTβR expression levels were determined by real-time PCR.

Expression of genes coding for selected amino acid transporters in small intestine, liver, and skeletal muscle of pigs fed excess branched-chain amino acids

M. Cervantes, Arce, N., García, H., Cota, M., Htoo, J. K., and Morales, A., Expression of genes coding for selected amino acid transporters in small intestine, liver, and skeletal muscle of pigs fed excess branched-chain amino acids, vol. 14, pp. 9779-9792, 2015.

Excess Leu reduces the availability of Ile and Val in pigs likely by reducing absorption of the latter amino acids (AA). Twenty-four crossbred pigs were used to evaluate the effect of excess Leu alone or with surplus Ile and Val on the expression of cationic (b0,+AT and CAT1) and neutral (B0AT1) AA transporters in the small intestine, liver, and skeletal muscle. Dietary treatments included: 1) basal diet; 2) basal plus 0.43% L-Leu (excess Leu); 3) basal plus 0.43% Leu, 0.20% L-Ile, and 0.25% L-Val (excess Leu, Ile, and Val).

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