New ideas and observations about production come about when somebody new enters a production system (in this case, a research scientist). Implementing a once-per-week weaning across the production system means a reduced number of trips to the off-site nursery. Estrus that is not detected is more expensive than females that do not cycle. Boar stimulation is necessary for induction and detection of heat. A quick check of wean-to-estrus interval (WEI), % bred by 7 or 10 days after weaning, and entry to first service on gilts are often used to indicate successful usage of boars. Hormone replacement therapy does not make gilts older or more mature. They merely kick-start the cycle and enhance the expression of estrus. AI success is synonymous with excellent heat checking. Knowledge of the farms mating patterns and able staff are important for AI to be successful. More doses of semen in an AI program do not always equal better fertility. The decision to obtain maximum pigs per insemination involves more cost considerations than just price of extra semen. Animal welfare is a reproductive issue. The brain monitors reproductive cycles as a ratio of estrogen to progesterone more than absolute values of other hormones, and the value of any concept is the cost of implementation.<\/p>\n","protected":false},"excerpt":{"rendered":"
New ideas and observations about production come about when somebody new enters a production system (in this case, a research scientist). Implementing a once-per-week weaning across the production system means a reduced number of trips to the off-site nursery. Estrus that is not detected is more expensive than females that do not cycle. Boar stimulation […]<\/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":[8882,640,70,10033,5162,785,6784,190,4023,562,105,3322,269,5620,48,2897,10859,324,14,33,16262,17743,27282,18599,14980,3753,12242,20912,7438,10101,20911,4874,24994,77,27281],"class_list":["post-3848","post","type-post","status-publish","format-standard","hentry","category-production","tag-al","tag-animal","tag-animal-welfare","tag-arc","tag-boar","tag-boars","tag-cos","tag-cost","tag-cycle","tag-farms","tag-gilt","tag-gilts","tag-heat","tag-insemination","tag-management","tag-mating","tag-nat","tag-nursery","tag-pig","tag-pigs","tag-pl","tag-prod","tag-production","tag-replacement","tag-search","tag-semen","tag-service","tag-some","tag-staff","tag-start","tag-t","tag-tan","tag-usa","tag-weaning","tag-welfare"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/3848","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=3848"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/3848\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=3848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=3848"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=3848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}