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020 ▼a 9780438282766
035 ▼a (MiAaPQ)AAI10969761
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 248032
0820 ▼a 636
1001 ▼a Brooks, Kayla Leanne.
24514 ▼a The Use of Bacillus-based Direct-fed Microbials to Improve Growth Performance and Gut Health of Nursery Pigs.
260 ▼a [S.l.] : ▼b North Carolina State University., ▼c 2018
260 1 ▼a Ann Arbor : ▼b ProQuest Dissertations & Theses, ▼c 2018
300 ▼a 157 p.
500 ▼a Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
500 ▼a Adviser: Sung Woo Kim.
5021 ▼a Thesis (Ph.D.)--North Carolina State University, 2018.
520 ▼a Concerns about the use of antibiotics as growth promotors in livestock production have led to the removal of many antimicrobial growth promotors from livestock production. The use of direct-fed microbials (DFMs) as an antibiotic alternative has
520 ▼a The objective of experiment 1 was to determine the effects of Bacillus-based DFMs on growth performance, gut health, immune status, and oxidative stress status in nursery pigs. Three-hundred and sixty nursery pigs were randomly assigned to 1 of
520 ▼a The objective of experiment 2 was to determine the optimal dose of Bacillus subtilis 29784 to improve growth performance of nursery pigs. Fifty-four newly weaned piglets were randomly allotted to 1 of 3 treatments: 1) T1: Basal diet
520 ▼a The objective of experiment 3 was to determine the effects of Bacillus subtilis 29784 on gut health and prevention of post-weaning diarrhea caused by F18+ Escherichia coli. Forty nursery pigs were randomly allotted to 1 of 4 treatments with ini
520 ▼a In conclusion, experiments 1 and 3 demonstrated that Bacillus -based DFMs can improve growth performance and gut health of nursery pigs in natural exposure conditions and may reduce the relative abundance of pathogenic bacteria during a pathogen
590 ▼a School code: 0155.
650 4 ▼a Animal sciences.
650 4 ▼a Nutrition.
690 ▼a 0475
690 ▼a 0570
71020 ▼a North Carolina State University. ▼b Animal Science and Poultry Science.
7730 ▼t Dissertation Abstracts International ▼g 79-12B(E).
773 ▼t Dissertation Abstract International
790 ▼a 0155
791 ▼a Ph.D.
792 ▼a 2018
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15001256 ▼n KERIS
980 ▼a 201812 ▼f 2019
990 ▼a 관리자