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020 ▼a 9780438076846
035 ▼a (MiAaPQ)AAI10785406
035 ▼a (MiAaPQ)iastate:17172
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 248032
0820 ▼a 636
1001 ▼a Schweer, Wesley Paul.
24510 ▼a Amino Acid Requirements of Health Challenged Pigs.
260 ▼a [S.l.] : ▼b Iowa State University., ▼c 2018
260 1 ▼a Ann Arbor : ▼b ProQuest Dissertations & Theses, ▼c 2018
300 ▼a 189 p.
500 ▼a Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
500 ▼a Adviser: Nicholas K. Gabler.
5021 ▼a Thesis (Ph.D.)--Iowa State University, 2018.
520 ▼a Porcine reproductive and respiratory syndrome virus (PRRSV) and Brachyspira hyodysenteriae (Bhyo) are two economically significant pathogenic agents in which their diseases impact pig production worldwide. Although different nutritional strateg
520 ▼a In Chapter 2, an experiment was conducted to assess the impact of soybean meal (SBM) and PRRSV on AID, BEL, and calculated SID values of N and AA near peak viremia (5-8 days post inoculation
520 ▼a The results from this research indicate that the mechanism by which high SBM improves the outcome of PRRSV challenged pigs does not appear to be related to increased digestibility of N or AA as there were no interactions of SBM and PRRSV (Chapte
520 ▼a When hindgut disappearance of nutrients and energy were calculated, PRRSV and Bhyo acted in an opposite manner (Chapter 2 and 3, respectively). Compared to control pigs, PRRSV increased hindgut disappearance of DM and GE at peak viremia only. In
520 ▼a In the final research chapter (Chapter 4), commercial pigs were utilized in an industry style production setting in which we reported that increasing the SID Lys:ME improved growth and feed efficiency in 25 kg BW and 50 kg BW PRRSV challenged pi
520 ▼a In summary of this dissertation, both systemic/respiratory (PRRSV) and colitis (Bhyo) challenges did not greatly impact ileal digestibility of nutrients, energy, and AA. Further, we did not report major changes in ileal endogenous AA losses, but
590 ▼a School code: 0097.
650 4 ▼a Animal sciences.
690 ▼a 0475
71020 ▼a Iowa State University. ▼b Animal Science.
7730 ▼t Dissertation Abstracts International ▼g 79-11B(E).
773 ▼t Dissertation Abstract International
790 ▼a 0097
791 ▼a Ph.D.
792 ▼a 2018
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T14997311 ▼n KERIS
980 ▼a 201812 ▼f 2019
990 ▼a 관리자