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Effects of Reduced Dietary Crude Protein on Gaseous Pollutant Emissions from a Swine Research Building
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Effects of Reduced Dietary Crude Protein on Gaseous Pollutant Emissions from a Swine Research Building. |
| 개인저자 | Liu, Shule. |
| 단체저자명 | Purdue University. Agricultural and Biological Engineering. |
| 발행사항 | [S.l.]: Purdue University., 2018. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2018. |
| 형태사항 | 200 p. |
| 기본자료 저록 | Dissertation Abstracts International 79-10B(E). Dissertation Abstract International |
| ISBN | 9780438016828 |
| 학위논문주기 | Thesis (Ph.D.)--Purdue University, 2018. |
| 일반주기 |
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Adviser: Jiqin Ni. |
| 요약 | Swine production is a primary source of protein and fat to human society, in the meanwhile, it continuously emits undesirable pollutant gases, including ammonia (NH3), hydrogen sulfide (H2S), carbon dioxide (CO2), methane (CH4), and nitrous oxid |
| 요약 | A comparison study with reduced dietary crude protein (CP) with supplemental amino acid (AA) was conducted with 720 pigs in a 12-room research building for 155 days that covered from weaned to finishing stages. The pigs were divided into three 4 |
| 요약 | Group cycle mean NH3 emissions from the control, T1, and T2 groups were 68.9 +/- 40.0, 46.7 +/- 19.5, and 29.8 +/- 10.6 g d-1 AU-1 (AU = 500 kg live mass), respectively. Emissions from the T1 and T2 groups were reduced by 33.0% and 57.2%, respec |
| 요약 | To study these variabilities, the 12 pig rooms were divided into sixty-six 2-room pairs, and the variables measured in each pair of two rooms were differenced to create a dataset showing the variabilities of NH3 emission and other measured varia |
| 요약 | Different from its effects on lowering NH3 emissions, reduced dietary CP and AA supplements increased hydrogen sulfide (H2S) emissions. The group cycle means H2S emission rates were 4.0 +/- 2.9, 4.3 +/- 3.2, and 5.4 +/- 4.0 g d-1 AU -1, respecti |
| 요약 | The dietary treatment of CP-reduction also influenced the emission of greenhouse gases (GHG). The dietary CP reduction was related to higher CO 2 emission (p < 0.05). The two CP reduced groups had lower N2O emissions (p < 0.01). The CH 4 emissio |
| 일반주제명 | Agricultural engineering. |
| 언어 | 영어 |
| 바로가기 | 
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