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Rhizoma Peanut as an Alternative Forage to Mitigate Environmental Impacts in Horse Operations- [electronic resource]
Rhizoma Peanut as an Alternative Forage to Mitigate Environmental Impacts in Horse Operations- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214095845
- ISBN
- 9798380600828
- DDC
- 636
- 서명/저자
- Rhizoma Peanut as an Alternative Forage to Mitigate Environmental Impacts in Horse Operations - [electronic resource]
- 발행사항
- [S.l.]: : University of Florida., 2021
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2021
- 형태사항
- 1 online resource(192 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-04, Section: A.
- 주기사항
- Advisor: Wickens, Carissa.
- 학위논문주기
- Thesis (Ph.D.)--University of Florida, 2021.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약Feeding high-protein feedstuffs and applying high rates of nitrogen fertilizer have raised concern in horse operations due to their potential environmental impacts. Therefore, best management practices such as feeding lower protein feed and incorporating legumes into grass pastures may contribute to more sustainable operations. The overarching objective of these studies was to evaluate the potential of rhizoma peanut (RP) to decrease nitrogen inputs while maintaining animal performance and welfare by including RP as either hay (Experiment 1, Chapter 3, 4, and 5) or pasture (Experiment 2, Chapter 6) in the diet of maintenance horses compared to common forage sources in the southern U.S. Experiment 1 evaluated the effect of RP on hay digestibility and nitrogen balance compared to alfalfa (ALF) and bermudagrass (BMG) hays. Legume hays provided more nutrients (P 0.0001) and were more digestible (P 0.0001) than BMG. ALF resulted in greatest (P 0.0001) nitrogen excretion and BMG the least. Alfalfa resulted in nitrogen retention greater (P = 0.0377) than BMG, and RP did not differ from ALF and BMG. Experiment 2 evaluated the effect of RP on feeding behavior and preference compared to ALF and BMG. Alfalfa resulted in longer (P = 0.0037) leisure time compared to RP and BMG, while RP did not differ from BG. Alfalfa was the most preferred (P 0.0001) hay, followed by RP, and BMG. Experiment 3 evaluated the effect of RP, ALF, and BMG on biomarkers of health status. No difference (P 0.05) was observed in fecal pH, dry matter, and lactate among the hays. While alfalfa resulted in glycemic, insulinemic, and plasma urea nitrogen responses greater (P 0.05) than BMG, RP did not alter those responses. Experiment 4 investigated the effect of incorporating RP (RP-BG) into bahiagrass (BG) pastures with low N rates compared to highly fertilized (FER-BG) or unfertilized (UNF-BG) monoculture bahiagrass pastures on herbage and animal responses. Intercropping RP into BG resulted in greater (P 0.05) crude protein digestibility in the late season. Not including RP or applying nitrogen fertilizer results in greater (P 0.05) weed proportion in botanical composition later in the season. In conclusion, providing horses with RP as either hay or incorporated into warm-season pastures can provide more sustainable management practices in horse operations with decreased off-farm nitrogen inputs while maintaining horse welfare and nutrition.
- 일반주제명
- Animal sciences.
- 일반주제명
- Sustainability.
- 일반주제명
- Nutrition.
- 키워드
- Alfalfa
- 키워드
- Bermudagrass
- 키워드
- Digestibility
- 키워드
- Hay
- 키워드
- Nitrogen
- 키워드
- Bahiagrass
- 기타저자
- University of Florida Animal Sciences
- 기본자료저록
- Dissertations Abstracts International. 85-04A.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008240612s2021 us |||||||||||||||c||eng d■001000016930971
■00520240214095845
■006m o d
■007cr#unu||||||||
■020 ▼a9798380600828
■035 ▼a(MiAaPQ)AAI28649523
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a636
■1001 ▼aCerqueira de Melo Vasco, Ana Caroline.
■24510▼aRhizoma Peanut as an Alternative Forage to Mitigate Environmental Impacts in Horse Operations▼h[electronic resource]
■260 ▼a[S.l.]:▼bUniversity of Florida. ▼c2021
■260 1▼aAnn Arbor :▼bProQuest Dissertations & Theses, ▼c2021
■300 ▼a1 online resource(192 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-04, Section: A.
■500 ▼aAdvisor: Wickens, Carissa.
■5021 ▼aThesis (Ph.D.)--University of Florida, 2021.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aFeeding high-protein feedstuffs and applying high rates of nitrogen fertilizer have raised concern in horse operations due to their potential environmental impacts. Therefore, best management practices such as feeding lower protein feed and incorporating legumes into grass pastures may contribute to more sustainable operations. The overarching objective of these studies was to evaluate the potential of rhizoma peanut (RP) to decrease nitrogen inputs while maintaining animal performance and welfare by including RP as either hay (Experiment 1, Chapter 3, 4, and 5) or pasture (Experiment 2, Chapter 6) in the diet of maintenance horses compared to common forage sources in the southern U.S. Experiment 1 evaluated the effect of RP on hay digestibility and nitrogen balance compared to alfalfa (ALF) and bermudagrass (BMG) hays. Legume hays provided more nutrients (P 0.0001) and were more digestible (P 0.0001) than BMG. ALF resulted in greatest (P 0.0001) nitrogen excretion and BMG the least. Alfalfa resulted in nitrogen retention greater (P = 0.0377) than BMG, and RP did not differ from ALF and BMG. Experiment 2 evaluated the effect of RP on feeding behavior and preference compared to ALF and BMG. Alfalfa resulted in longer (P = 0.0037) leisure time compared to RP and BMG, while RP did not differ from BG. Alfalfa was the most preferred (P 0.0001) hay, followed by RP, and BMG. Experiment 3 evaluated the effect of RP, ALF, and BMG on biomarkers of health status. No difference (P 0.05) was observed in fecal pH, dry matter, and lactate among the hays. While alfalfa resulted in glycemic, insulinemic, and plasma urea nitrogen responses greater (P 0.05) than BMG, RP did not alter those responses. Experiment 4 investigated the effect of incorporating RP (RP-BG) into bahiagrass (BG) pastures with low N rates compared to highly fertilized (FER-BG) or unfertilized (UNF-BG) monoculture bahiagrass pastures on herbage and animal responses. Intercropping RP into BG resulted in greater (P 0.05) crude protein digestibility in the late season. Not including RP or applying nitrogen fertilizer results in greater (P 0.05) weed proportion in botanical composition later in the season. In conclusion, providing horses with RP as either hay or incorporated into warm-season pastures can provide more sustainable management practices in horse operations with decreased off-farm nitrogen inputs while maintaining horse welfare and nutrition.
■590 ▼aSchool code: 0070.
■650 4▼aAnimal sciences.
■650 4▼aSustainability.
■650 4▼aNutrition.
■653 ▼aAlfalfa
■653 ▼aBermudagrass
■653 ▼aDigestibility
■653 ▼aHay
■653 ▼aNitrogen
■653 ▼aBahiagrass
■690 ▼a0475
■690 ▼a0640
■690 ▼a0570
■71020▼aUniversity of Florida▼bAnimal Sciences.
■7730 ▼tDissertations Abstracts International▼g85-04A.
■773 ▼tDissertation Abstract International
■790 ▼a0070
■791 ▼aPh.D.
■792 ▼a2021
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16930971▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
