Salbutamol has potential for use as a
\nrepartioning agent in swine. The aims of this experiment
\nwere to determine effects of salbutamol on behavior
\nand physiology of finishing pigs. The study used
\n192 pigs (88.8 \u00b1 0.9 kg of BW) housed in groups of 6
\nin 32 pens and assigned to 1 of 4 treatments: 1) control\u2014
\n0 mg\/kg of salbutamol, 2) 2R\u2014control diet with
\n2 mg\/kg of the pure R-enantiomer of salbutamol, 3)
\n4R\u2014control diet with 4 mg\/kg of pure R-salbutamol, or
\n4) 8RS\u2014control diet with 8 mg\/kg of a 50:50 mixture
\nof the R- and S-enantiomers. All diets were offered ad
\nlibitum for 4 wk. Salbutamol diets were replaced with
\ncontrol diets 24 to 48 h before slaughter. Behavioral
\nresponses to handling during weighing were recorded
\nimmediately before assignment to the treatments (wk
\n0) and at weekly intervals over the next 4-wk period.
\nBehavioral and heart rate (HR) responses to a 10-min
\nhuman presence test in the home pen were measured
\nduring wk 0, wk 1, and wk 3. Heart rate responses to
\na 36-min transportation were recorded. One pig from
\neach pen had blood collected 4 times: during wk 0, 2, 4,
\nand at exsanguination. Blood was analyzed for NEFA,
\ncreatine kinase, glucose, lactate, blood urea nitrogen,
\nammonia, insulin, cortisol, norepinephrine, and epinephrine.
\nData were analyzed using PROC GLM of
\nSAS, with pen as the experimental unit. Treatment
\nhad no effect on time spent lying laterally, overall activity,
\nor time spent alert. Treatment had no effect on
\nhandling measures (P > 0.05) or on behavioral responses
\nto human presence (P > 0.05), with all pigs willing
\nto spend similar amounts of time close to and touching
\nthe human. However, during the human presence
\ntest in wk 1 and wk 3, control pigs had HR around 10
\npeats per minute less (P < 0.05) than pigs in the other 3\ntreatments. During transport, overall HR were similar\nacross treatments (P > 0.05). However, at certain 1-min
\ntime points, control pigs had greater HR than salbutamol-
\ntreated pigs (P < 0.05). There were no treatment\ndifferences in lactate, epinephrine, or norepinephrine\nconcentrations at any point. During wk 4, control pigs\nhad less creatine kinase (P < 0.02) and greater blood\nurea nitrogen (P < 0.005) compared with pigs fed all the\nsalbutamol treatments. The home pen behavior, handling,\nhuman presence test, and transport results indicate\nthat salbutamol-treated pigs do not show marked\ndifferences in home pen time budgets and behavioral\nand HR responses to handling and transportation compared\nwith control pigs. Thus, salbutamol did not have\na negative effect on finishing pig well-being during this\nstudy.\n<\/p>\n","protected":false},"excerpt":{"rendered":"
Salbutamol has potential for use as a repartioning agent in swine. The aims of this experiment were to determine effects of salbutamol on behavior and physiology of finishing pigs. The study used 192 pigs (88.8 \u00b1 0.9 kg of BW) housed in groups of 6 in 32 pens and assigned to 1 of 4 treatments: […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[930],"tags":[8882,229,13816,65,16845,577,1287,124,7756,175,20007,112,155,10858,10859,187,3465,2734,14,33,16262,6764,76,35,20911,1579,26223,91,525,52,6053,6853],"class_list":["post-4063","post","type-post","status-publish","format-standard","hentry","category-production","tag-al","tag-ammonia","tag-ass","tag-behavior","tag-close","tag-diet","tag-diets","tag-finishing","tag-finishing-pig","tag-finishing-pigs","tag-gh","tag-handling","tag-husbandry","tag-mark","tag-nat","tag-nitrogen","tag-pea","tag-physiology","tag-pig","tag-pigs","tag-pl","tag-salbutamol","tag-slaughter","tag-swine","tag-t","tag-test","tag-the-effects","tag-transport","tag-transportation","tag-treatment","tag-use","tag-weighing"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/4063","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=4063"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/4063\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=4063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=4063"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=4063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}