Monitoring pig weights to optimize growing pig performance

door Schauer, Birgit
Staat: Nieuw
€ 58,99
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Schauer, Birgit Monitoring pig weights to optimize growing pig performance
Schauer, Birgit - Monitoring pig weights to optimize growing pig performance

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Omschrijving

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.

Bijdragers

Schrijver:
Schauer, Birgit
Cogger, Naomi
S. Morris, Roger

Productdetails

Biografie:
Dr Birgit Schauer, studied veterinary medicine at Ludwig- Maximilian-Univ (LMU). Specialized in epidemiology. German doctorate (joint project betw. LMU and EpiCentre, Massey, NZ). MVSt at the EpiCentre. Since 2008, technical manager of an avian influenza research project in Vietnam (NZAID; Dep. of Animal Health, Vietnam; EpiCentre).
Taal:
Engels
Aantal pagina’s:
152
Mediatype:
Paperback
Uitgever:
LAP Lambert Academic Publishing

Basisgegevens

Product Type:
Zakboek
Afmetingen pakket:
0.22 x 0.15 x 0.009 m; 0.272 kg
GTIN:
09783838320120
DUIN:
10QM4471RR8
€ 58,99
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