Monitoring pig weights to optimize growing pig performance: Reducing errors in pig weight measurements - Couverture souple
Synopsis
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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Monitoring pig weights to optimize growing pig performance
Edité par
LAP LAMBERT Academic Publishing Okt 2009, 2009
ISBN 10 : 3838320123
ISBN 13 : 9783838320120
Neuf
Taschenbuch
Vendeur : BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Allemagne
Évaluation du vendeur 5 sur 5 étoiles
Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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. 152 pp. Englisch. N° de réf. du vendeur 9783838320120
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Expédition depuis Allemagne vers Etats-Unis
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Monitoring pig weights to optimize growing pig performance
Edité par
LAP Lambert Academic Publishing, 2009
ISBN 10 : 3838320123
ISBN 13 : 9783838320120
Neuf
Couverture souple
Vendeur : moluna, Greven, Allemagne
Évaluation du vendeur 5 sur 5 étoiles
Etat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. 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. Res. N° de réf. du vendeur 5412680
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Monitoring pig weights to optimize growing pig performance
Edité par
LAP LAMBERT Academic Publishing Okt 2009, 2009
ISBN 10 : 3838320123
ISBN 13 : 9783838320120
Neuf
Taschenbuch
Vendeur : buchversandmimpf2000, Emtmannsberg, BAYE, Allemagne
Évaluation du vendeur 5 sur 5 étoiles
Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware -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.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 152 pp. Englisch. N° de réf. du vendeur 9783838320120
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Monitoring pig weights to optimize growing pig performance : Reducing errors in pig weight measurements
Edité par
LAP LAMBERT Academic Publishing, 2009
ISBN 10 : 3838320123
ISBN 13 : 9783838320120
Neuf
Taschenbuch
Vendeur : AHA-BUCH GmbH, Einbeck, Allemagne
Évaluation du vendeur 5 sur 5 étoiles
Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - 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. N° de réf. du vendeur 9783838320120
Acheter neuf
EUR 59
Expédition à EUR 61,22
Expédition depuis Allemagne vers Etats-Unis
Expédition depuis Allemagne vers Etats-Unis
Quantité disponible : 1 disponible(s)