Monitoring Pig Weights to Optimize Growing Pig Performance
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Monitoring Pig Weights to Optimize Growing Pig Performance

Monitoring Pig Weights to Optimize Growing Pig Performance


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About the Book

This 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.


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Product Details
  • ISBN-13: 9783838320120
  • Publisher: Lap Lambert Academic Publishing
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Spine Width: 9 mm
  • Width: 152 mm
  • ISBN-10: 3838320123
  • Publisher Date: 06 Jun 2010
  • Height: 229 mm
  • No of Pages: 152
  • Series Title: English
  • Weight: 281 gr


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Monitoring Pig Weights to Optimize Growing Pig Performance
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Monitoring Pig Weights to Optimize Growing Pig Performance
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