{"product_id":"monitoring-pig-weights-to-optimize-growing-pig-performance-von-birgit-schauer-naomi-cogger-und-roger-s-morris","title":"Monitoring pig weights to optimize growing pig performance","description":"\u003cp\u003eThis book presents research on sources of errors in  pig weight measurements. Three studies were  conducted on a New Zealand pig farm. First, finisher  pigs fed ad libitum or via a liquid feeding system  were weighed four times a day over a four-day  period. Results showed that standardizing weighing  time reduced fluctuations in pig weights. Next, the effect of overnight feed withdrawal on  reducing variation in pig weigths and growth rate  was investigated. Feed withdrawal reduced  variability by up to 11.5% in grower and finisher  pigs, whilst the effect was inconsistent in weaner  pigs. Lastly, sampling error was compared when sampling  pens from batches of pigs using different sample  sizes and sampling methods. Increasing the portion  of randomly selected pens reduced sampling error,  but in a diminishing manner. Purposive selection of  two pens reduced sampling error by 64% compared with  random sampling, but it introduces the risk of bias.  Thus, pens should be selected at random.  Results may serve as an educational tool on how to  reduce errors in pig weights. More accurate data  will lead to improved interpretability of growth  records.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838320120\"\u003e\u003ch3\u003eReducing errors in pig weight measurements\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838320120","offer_id":39469198213213,"sku":"9783838320120","price":59.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/109bb045-7bba-4d2d-99d0-91c39bb2c72a.jpg?v=1776056685","url":"https:\/\/shop.autorenwelt.de\/products\/monitoring-pig-weights-to-optimize-growing-pig-performance-von-birgit-schauer-naomi-cogger-und-roger-s-morris","provider":"Autorenwelt Shop","version":"1.0","type":"link"}