자료유형  

 학위논문

Control Number  

0016935162

International Standard Book Number  

9798380071598

Dewey Decimal Classification Number  

630

Main Entry-Personal Name  

Kemp, Rebecca Kirkpatrick.

Publication, Distribution, etc. (Imprint  

[S.l.] : Texas A&M University., 2022

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2022

Physical Description  

1 online resource(81 p.)

General Note  

Source: Dissertations Abstracts International, Volume: 85-02, Section: B.

General Note  

Advisor: Gehring, Kerri B.

Dissertation Note  

Thesis (Ph.D.)--Texas A&M University, 2022.

Restrictions on Access Note  

This item must not be sold to any third party vendors.

Summary, Etc.  

요약Hempseed meal (HSM) was studied as an alternative protein source for grow-finish swine diets. This study utilized 44 barrows randomly assigned to a treatment diet containing HSM or control diet containing soybean meal (SBM) as the primary protein source. Diets did not affect (P 0.05) feed intake, feed conversion, or average daily gain. Barrows were harvested over 5 days. No differences (P 0.05) were found between diets for hot carcass weight, liver and lung scores, carcass pH, dressing percentage, or quality and yield grades. Carcasses were fabricated and additional quality attributes investigated via shelf-life, Warner Bratzler Shear (WBS) force, and proximate analysis. SBM chops had less (P = 0.0438) drip loss than HSM. Interaction between diet and chop type was significant (P 0.05) for days 2, 6, and 7, and days 0, 4, 6, and 7 for lightest and darkest color, respectively. HSM chop discoloration was darker (P 0.0001) and had higher (P 0.05) were found for L*, a*, and b* values. Aerobic plate counts were higher (P 0.05) for HSM chops on days 4 and 6. HSM chops had higher (P 0.05) TBARS values on days 2, 4, 6, and 7. SBM chops were more (P = 0.0145) tender than treatment chops for WBS force values. SBM rib chops had higher (P 0.05) protein, fat, and moisture contents. SBM bellies were firmer (P = 0.0022) than HSM bellies. Muscle tissue, liver, urine, and plasma were collected on the harvest floor for all HSM carcasses and subjected to biochemical analysis to detect delta 9-tetrahydrocannabinol (THC) and cannabinol (CBD) residue. CBD and 7-carboxy-CBD were detected at low levels in both urine and plasma. THC was not detected in any samples. Economic differences in feed costs by ingredient, total feed costs, and price to producer at harvest were assessed. No differences (P 0.05) were seen for estimated prices to producers for carcasses, major and minor cuts, or slaughter costs when premiums/discounts were applied based on 10th rib backfat. 

Subject Added Entry-Topical Term  

Agriculture.

Subject Added Entry-Topical Term  

Animal sciences.

Subject Added Entry-Topical Term  

Molecular biology.

Subject Added Entry-Topical Term  

Nutrition.

Index Term-Uncontrolled  

Hemp

Index Term-Uncontrolled  

Swine

Index Term-Uncontrolled  

Protein source

Index Term-Uncontrolled  

Feed intake

Index Term-Uncontrolled  

Diets

Added Entry-Corporate Name  

Texas A&M University Animal Science

Host Item Entry  

Dissertations Abstracts International. 85-02B.

Host Item Entry  

Dissertation Abstract International

Electronic Location and Access  

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Control Number  

joongbu:642789