{"id":52118,"date":"2020-09-01T19:17:13","date_gmt":"2020-09-01T17:17:13","guid":{"rendered":"https:\/\/lohmann-breeders.com\/the-impact-of-laying-pattern-characteristics-on-egg-quality-traits\/"},"modified":"2020-09-01T19:17:13","modified_gmt":"2020-09-01T17:17:13","slug":"the-impact-of-laying-pattern-characteristics-on-egg-quality-traits","status":"publish","type":"post","link":"https:\/\/lohmann-breeders.com\/zh-hans\/the-impact-of-laying-pattern-characteristics-on-egg-quality-traits\/","title":{"rendered":"The impact of laying pattern characteristics on egg quality traits"},"content":{"rendered":"

Introduction <\/h2>

\r\n\r\nThe genetic potential of layers today is sufficient to produce a high quality egg on more than 100 subsequent days. With a programme of 16 hours light per day, such big clutches require time intervals of around 24 hours. Shortened time intervals as well as\r\nfewer days without any oviposition between two consecutive laid eggs are the last but not least consequences of improved laying\r\nperformance. However, this development in the cyclic nature of a hen may not take place at the expense of egg quality. Therefore,\r\neggs from hens with varying oviposition intervals were tested for this study to determine the influence of the reproduction cycle\r\nlength on egg weight, breaking strength and egg shape.

\r\n\r\n\r\nMaterial <\/strong>

\r\n\r\n239 pedigreed offspring of a\r\nLOHMANN BROWN line established at the experimental station\r\nThalhausen, were specifically tested\r\nwith the Weihenstephan Funnel\r\nNest Box.

\r\n\r\n\"\"\r\nA hen leaving the Funnel Nest Box<\/strong><\/em>\r\n

\r\n\r\n\r\n\r\nCaptured traits for 1,559 eggs collected\r\nover a period of 9 consecutive days at\r\nan age of 27 weeks:

\r\nExact oviposition time
\r\ntime interval

\r\negg weight

\r\negg shape

\r\nbreaking strenght

\r\n\r\n\r\n\"\"
\r\nEgg collection of one nest<\/strong><\/em>

\r\n\r\n\"\"

\r\nEgg weighing (left) and measuring breaking strength (right) of\r\nhen-specific assigned eggs.<\/strong><\/em>\r\n\r\n\r\n


\r\n\r\nResults<\/strong>

\r\n\r\nChanges in breaking strength and egg weight in regard to\r\noviposition time as the percentage of observations in\r\neach time category.

\r\n\r\n\r\n\"\"\r\n\r\n\r\n

\r\nEggs which are laid early in the morning are often eggs which\r\nare laid at the beginning of one clutch. These eggs are higher\r\nin egg weight and their egg shape is rounder than eggs which\r\nare laid later during the day.

\r\n\r\n\r\nChanges in breaking strength and egg weight for different time interval categories and their percentage.

\r\n\r\n\"\"

\r\n\r\nDespite a small increase in egg weight, breaking strength is also higher for eggs laid after longer time intervals

\r\n\r\n\r\nConclusion<\/strong>

\r\n\r\nIn regard to egg quality and other performance criteria, there is an optimum time interval of between 24 hours to 24 hours and\r\n15 minutes. Hens which lay eggs within this time frame are the most economical layers. They are distinguished by the highest egg\r\nmass output combined with good egg quality\r\n\r\n

\r\n\r\n\r\nDr.Wiebke Icken, Dr. Matthias Schmutz, Dr.David Cavero, Stefan Thurner, Prof. Dr.Rudolf Preisinger.\r\n\r\n\r\n\r\n\r\n","protected":false},"excerpt":{"rendered":"Introduction The genetic potential of layers today is s […]","protected":false},"author":15,"featured_media":52076,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[2335],"tags":[],"class_list":["post-52118","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-poultry-news-zh-hans","issue-2013-1-zh-hans-2","yeararchive-2013-zh-hans"],"acf":[],"yoast_head":"The impact of laying pattern characteristics on egg quality traits - Lohmann Breeders<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lohmann-breeders.com\/zh-hans\/the-impact-of-laying-pattern-characteristics-on-egg-quality-traits\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The impact of laying pattern characteristics on egg quality traits - 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