Effects of flaxseed supplementation and exogenous hormones on finishing performance, carcass characteristics, and plasma and longissimus muscle fatty acid profiles in finishing cattle

K-REx Repository

Show simple item record

dc.contributor.author Litton, Leanne Kay
dc.date.accessioned 2011-05-06T13:41:16Z
dc.date.available 2011-05-06T13:41:16Z
dc.date.issued 2011-05-06
dc.identifier.uri http://hdl.handle.net/2097/8757
dc.description.abstract The effects of supplementing forms of flaxseed on plasma and longissimus muscle (LM) fatty acid (FA) composition, finishing performance, and carcass characteristics were evaluated in five studies. In study 1, steers were fed diets with soy oil (SO), ground flaxseed (Flaxseed), or urea formaldehyde condensation polymer treated flaxseed (UFCP). In study 2, steers were fed diets with SO, linseed oil (LO), or a combination of flaxseed and field peas that was extruded (LinPro). Feeding flaxseed products increased (P < 0.01) α-linolenic acid (ALA), omega-3 FA, and decreased (P < 0.01) n-6:n-3 in LM compared to cattle fed SO. Feeding LinPro increased (P < 0.01) ALA, omega-3 FA, and decreased (P < 0.01) n-6:n-3 in LM compared to steers fed SO or LO. In studies 3 and 4, steers were fed diets with and without Flaxseed and implanted or not. Implanting improved (P ≤ 0.05) DMI, ADG, feed efficiency, HCW, and LM area compared to cattle not implanted. In study 4, cattle fed Flaxseed had increased (P < 0.01) ALA and omega-3 FA, and decreased (P < 0.01) n-6:n-3 in LM compared to cattle fed SO. In study 5, heifers were fed diets with 0% or 5% linseed meal, and administered with or without exogenous hormones (NHTC). Administering exogenous hormones improved (P ≤ 0.02) DMI, ADG, G:F, and HCW compared to NHTC cattle. Omega-3 FA increased in LM when cattle were supplemented with flaxseed products. Cattle fed LinPro achieved the highest levels of ALA and omega-3 FA. Flaxseed products did not interact with implants as a natural growth promoter in finishing cattle. en_US
dc.language.iso en_US en_US
dc.publisher Kansas State University en
dc.subject Flaxseed en_US
dc.subject Feedlot en_US
dc.subject Long chain fatty acids en_US
dc.subject Growth promotant en_US
dc.subject Exogenous hormones en_US
dc.title Effects of flaxseed supplementation and exogenous hormones on finishing performance, carcass characteristics, and plasma and longissimus muscle fatty acid profiles in finishing cattle en_US
dc.type Thesis en_US
dc.description.degree Master of Science en_US
dc.description.level Masters en_US
dc.description.department Department of Animal Sciences and Industry en_US
dc.description.advisor James S. Drouillard en_US
dc.description.advisor Christopher D. Reinhardt en_US
dc.subject.umi Animal Sciences (0475) en_US
dc.subject.umi Biology, Animal Physiology (0433) en_US
dc.date.published 2011 en_US
dc.date.graduationmonth May en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search K-REx


Browse

My Account

Statistics








Center for the

Advancement of Digital

Scholarship

cads@k-state.edu