@article{silva-guillen_arellano_boyd_martinez_heugten_2020, title={Growth performance, oxidative stress and immune status of newly weaned pigs fed peroxidized lipids with or without supplemental vitamin E or polyphenols}, volume={11}, ISSN={["2049-1891"]}, url={http://dx.doi.org/10.1186/s40104-020-0431-9}, DOI={10.1186/s40104-020-0431-9}, abstractNote={Abstract}, number={1}, journal={JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY}, publisher={Springer Science and Business Media LLC}, author={Silva-Guillen, Y. V. and Arellano, C. and Boyd, R. D. and Martinez, G. and Heugten, E.}, year={2020}, month={Mar} }
 @article{silva-guillen_arellano_martinez_heugten_2020, title={Growth performance, oxidative stress, and antioxidant capacity of newly weaned piglets fed dietary peroxidized lipids with vitamin E or phytogenic compounds in drinking water}, volume={36}, ISSN={["2590-2865"]}, url={http://dx.doi.org/10.15232/aas.2019-01976}, DOI={10.15232/aas.2019-01976}, abstractNote={ABSTRACT Objective This study evaluated the use of vitamin E and phytogenic compounds in drinking water on growth performance, oxidative stress, and immune status of piglets fed peroxidized lipids. Materials and Methods In a 35-d study, 21-d-old weaned piglets (n = 96; 6.10 ± 0.64 kg of BW) were assigned within sex and BW blocks to 1 of 4 treatments, using 24 pens (4 pigs per pen; 6 replications per treatment). Diets contained either 6% soybean oil or 6% peroxidized soybean oil. Pigs fed peroxidized soybean oil received drinking water without (control) or with supplemental vitamin E (100 IU/L of RRR-α-tocopherol) or phytogenic compounds (60 μL/L for wk 1 and 30 μL/L for wk 2 to 5). Results and Discussion Peroxidized soybean oil decreased (P Implications and Applications Peroxidized soybean oil reduced growth performance of weaned nursery pigs, which did not appear to be related to oxidative stress or immune status. The negative effects of peroxidized soybean oil on animal performance could not be improved by supplementation of vitamin E or phytogenic compounds in the drinking water.}, number={3}, journal={APPLIED ANIMAL SCIENCE}, publisher={American Registry of Professional Animal Scientists}, author={Silva-Guillen, Ysenia and Arellano, Consuelo and Martinez, Gabriela and Heugten, Eric}, year={2020}, month={Jun}, pages={341–351} }
 @article{mendoza_boyd_remus_wilcock_martinez_heugten_2020, title={Sow performance in response to natural betaine fed during lactation and post-weaning during summer and non-summer months}, volume={11}, ISSN={["2049-1891"]}, DOI={10.1186/s40104-020-00471-0}, abstractNote={Two studies were conducted to evaluate the effects of dietary natural betaine on sow reproductive performance during summer (Exp. 1) and non-summer months (Exp. 2). Treatments were designed as a 2 × 2 factorial arrangement with factors including dietary betaine (0 or 0.2%) and period of supplementation (lactation or post-weaning until 35 days post-insemination). In Exp. 1, 322 and 327 sows and in Exp. 2, 300 and 327 sows representing young (parity 1 and 2) and mature (parity 3 to 6) sows, respectively, were used. In Exp. 1, supplementation of betaine during lactation increased sow body weight losses (− 11.95 vs. −14.63 kg; P = 0.024), reduced feed intake (4.12 vs. 4.28 kg/d; P = 0.052), and tended to reduce percentage of no-value pigs (P = 0.071). Betaine fed post-weaning reduced weaning-to-estrus interval (5.75 vs. 6.68 days; P = 0.054) and farrowing rate (86.74% vs. 91.36%; P = 0.060), regardless of parity group. Post-hoc analysis with sows clustered into 3 parity groups (1, 2 and 3, and 4+) indicated that betaine fed in lactation to parity 4+ sows (P = 0.026) and betaine fed post-weaning to parity 1 sows increased the number of pigs born in the subsequent cycle (P ≤ 0.05). In Exp. 2, betaine fed during lactation tended to reduce the weaning-to-estrus interval (6.64 vs. 7.50 days; P = 0.077) and farrowing rate (88.23% vs. 83.54%; P = 0.089), regardless of parity group. Feeding betaine post-weaning reduced number of pigs born (13.00 vs. 13.64; P = 0.04) and pigs born alive (12.30 vs. 12.82; P = 0.075), regardless of parity group. Using 0.2% betaine during the non-summer months did not benefit sow performance. During the summer, betaine supplementation in lactation increased subsequent litter size in parity 4+ sows. Betaine fed during the post-weaning period reduced the wean-to-estrus interval and farrowing rate, increased total number of pigs born for parity 1 sows and reduced total number of pigs born to parity 4+ sows. Further research is needed to determine if the detrimental effects on feed intake and farrowing rate may be correlated and depend on dietary betaine level.}, number={1}, journal={JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY}, author={Mendoza, S. M. and Boyd, R. D. and Remus, J. and Wilcock, P. and Martinez, G. E. and Heugten, E.}, year={2020}, month={Jul} }
 @article{silva-guillen_padilla_wiegert_arellano_boyd_heugten_2019, title={Impact of heat stress and antioxidant supplements in feed or drinking water on growth, intestinal morphology, and oxidative and immune status in growing pigs.}, volume={97}, ISSN={["1525-3163"]}, DOI={10.1093/jas/skz122.131}, abstractNote={Abstract}, journal={JOURNAL OF ANIMAL SCIENCE}, author={Silva-Guillen, Ysenia Victoria and Padilla, Gabriela E. Martinez and Wiegert, Jeffrey and Arellano, Consuelo and Boyd, R. Dean and Heugten, Eric}, year={2019}, month={Jul}, pages={71–71} }