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  1. Article ; Online: Effects of increasing omega-3 fatty acids on growth performance, immune response, and mortality in nursery pigs.

    Bromm, Jenna J / Tokach, Mike D / Woodworth, Jason C / Goodband, Robert D / DeRouchey, Joel M / Hastad, Chad W / Post, Zach B / Flohr, Josh R / Schmitt, Raymond A / Zarate Ledesma, Jose F / Gebhardt, Jordan T

    Translational animal science

    2024  Volume 8, Page(s) txae002

    Abstract: Three experiments evaluated omega-3 fatty acids, provided by O3 trial feed, on nursery pig growth performance, mortality, and response to an LPS immune challenge or natural Porcine reproductive and respiratory virus (PRRSV) outbreak. In experiment 1, 350 ...

    Abstract Three experiments evaluated omega-3 fatty acids, provided by O3 trial feed, on nursery pig growth performance, mortality, and response to an LPS immune challenge or natural Porcine reproductive and respiratory virus (PRRSV) outbreak. In experiment 1, 350 pigs (241 × 600, DNA; initially 5.8 kg) were used. Pens of pigs were randomly assigned to one of the five dietary treatments containing increasing omega-3 fatty acids (0%, 1%, 2%, 3%, and 4% O3 trial feed) with 14 replications per treatment. On day 25, two pigs per pen were injected intramuscularly with 20 μg
    Language English
    Publishing date 2024-01-05
    Publishing country England
    Document type Journal Article
    ISSN 2573-2102
    ISSN (online) 2573-2102
    DOI 10.1093/tas/txae002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Improving performance of finishing pigs with added valine, isoleucine, and tryptophan: validating a meta-analysis model.

    Kerkaert, Hayden R / Cemin, Henrique S / Woodworth, Jason C / DeRouchey, Joel M / Dritz, Steve S / Tokach, Mike D / Goodband, Robert D / Haydon, Keith D / Hastad, Chad W / Post, Zach B

    Journal of animal science

    2021  Volume 99, Issue 1

    Abstract: Based on results of a recent meta-analysis, we hypothesized that increased dietary Val, Ile, or Trp could correct possible amino acid interactions because of excess Leu in diets containing high levels of corn protein, namely dried distiller's grains with ...

    Abstract Based on results of a recent meta-analysis, we hypothesized that increased dietary Val, Ile, or Trp could correct possible amino acid interactions because of excess Leu in diets containing high levels of corn protein, namely dried distiller's grains with solubles (DDGS). A total of 1,200 pigs (PIC TR4 × (Fast LW × PIC L02); initially 33.6 ± 0.6 kg) were used in a 103-d study. The 6 dietary treatments were corn-soybean meal (SBM)-DDGS-based as follows: (1) high SBM and low level of l-Lys HCl (HSBM), (2) high l-Lys HCl and moderate Ile, Val, Trp (AA above NRC 2012 estimates; NC), (3) moderate l-Lys HCl and high Ile, Val, and Trp (PC), and PC with either increased (4) L-Val (PC+Val), (5) L-Ile (PC+Ile), or (6) L-Trp (PC+Trp). Pigs fed the NC diet were predicted to have the poorest average daily gain (ADG), the PC diet to be intermediate, and pigs fed the HSBM, PC+Val, PC+Ile, and PC+Trp have the same and highest predicted ADG. In the grower period (34 to 90 kg), ADG was greater (Ρ < 0.05) for the pigs fed HSBM and PC+Val diets than the NC with pigs fed other diets intermediate. Pigs fed HSBM were more (Ρ < 0.05) efficient (G:F) than the NC and PC with pigs fed other diets intermediate. In the finisher period (90 to 136 kg), ADG was greater (Ρ < 0.05) for pigs fed PC+Ile than that of the NC with pigs fed other diets intermediate. Pigs fed PC+Val had greater (Ρ < 0.05) average daily feed intake (ADFI) than the NC with pigs fed other diets intermediate. However, PC+Ile pigs were more (Ρ < 0.05) efficient than PC+Val with pigs fed other diets intermediate. Overall, ADG was greater (Ρ < 0.05) for pigs fed HSBM, PC+Val, and PC+Ile diets than the NC with pigs fed other diets intermediate. Pigs fed the PC+Val diet had greater (Ρ < 0.05) ADFI than the NC with pigs fed other diets intermediate. No differences were detected between treatments for overall G:F or other carcass characteristics. In conclusion, increasing Val or Ile in high l-Lys-HCl-DDGS-based diets improved growth performance compared with pigs fed diets containing high levels of l-Lys HCl without added Val and Ile. These results present evidence that the recently developed meta-analysis can predict the relative differences in overall ADG for pigs fed the NC, PC, PC+Val, and PC+Ile diets; however, the predicted G:F was less accurate. The data demonstrate that the negative effects of high Leu concentrations in corn-DDGS-based diets can be reversed by increasing the ratios of Val and Ile relative to Lys.
    MeSH term(s) Animal Feed/analysis ; Animal Nutritional Physiological Phenomena ; Animals ; Diet/veterinary ; Isoleucine/administration & dosage ; Meta-Analysis as Topic ; Swine/growth & development ; Tryptophan/administration & dosage ; Valine/administration & dosage ; Zea mays
    Chemical Substances Isoleucine (04Y7590D77) ; Tryptophan (8DUH1N11BX) ; Valine (HG18B9YRS7)
    Language English
    Publishing date 2021-01-30
    Publishing country United States
    Document type Journal Article ; Validation Study
    ZDB-ID 390959-1
    ISSN 1525-3163 ; 0021-8812
    ISSN (online) 1525-3163
    ISSN 0021-8812
    DOI 10.1093/jas/skab006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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