Monitoring pig weights optimize par schauer birgit (5 résultats)
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Vendeur : preigu, Osnabrück, Allemagnepreigu
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Taschenbuch. Etat : Neu. Monitoring pig weights to optimize growing pig performance | Reducing errors in pig weight measurements | Birgit Schauer (u. a.) | Taschenbuch | 152 S. | Englisch | 2009 | LAP LAMBERT Academic Publishing | EAN 9783838320120 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 1…9, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.
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Vendeur : BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , AllemagneBuchWeltWeit Ludwig Meier e.K.
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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.
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Vendeur : moluna, Greven, , Allemagnemoluna
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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 tim…es a day over a four-day period. Res.
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Vendeur : buchversandmimpf2000, Emtmannsberg, BAYE, Allemagnebuchversandmimpf2000
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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 fou…r-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.
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Vendeur : AHA-BUCH GmbH, Einbeck, AllemagneAHA-BUCH GmbH
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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.
