Computer-based analysis of sow herd performance
نویسندگان
چکیده
منابع مشابه
The effect of double nursing, an alternative nursing strategy for the hyper-prolific sow herd, on herd performance
BACKGROUND Hyper-prolific sows produce more piglets than they can suckle, as the number of milk producing teats of the sow is lower (twelve to sixteen) than the number of live born piglets per litter. Farmers and farm workers are struggling to feed this surplus of piglets. To minimize suckling piglet mortality, litter size at 24 hours after parturition should not exceed the number of functional...
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Sow performance is a key component of the productivity of commercial pig farms. Reproductive failure in the sow is common in pig production. For every 100 sows served, 89 should farrow. In absence of specific diseases such as porcine parvovirus, pseudo-rabies, swine fever, leptospirosis and brucellosis, management failures are the most important causes of loss. A syndrome associated with reprod...
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Causes of sow and gilt death were appraised with postmortem examinations for 20 weeks (May to October) in a 5200-sow herd experiencing higher than expected sow mortality. Complete necropsy fi ndings and data are provided for 107 females. The locomotor, gastrointestinal, reproductive, and urinary systems were affected with lesions presumably causing death; however, lesions affecting the respirat...
متن کاملAn analysis of a presumed major outbreak of pseudorabies virus in a vaccinated sow herd.
We describe a major outbreak of pseudorabies virus (PRV) in a sow herd in which the sows were vaccinated simultaneously three times a year with a vaccine containing Bartha strain. Also in the associated rearing herd in which the gilts were vaccinated twice an outbreak of PRV occurred. The outbreak was analysed with mathematical models, statistical methods and Monte-Carlo simulation. Under the a...
متن کاملHistogram - Based Performance Analysis for Computer
A conventional analytic model used for evaluating the performance of computer and communication systems accepts single values as model inputs and computes a single value for each performance measure of interest. However uncertainties regarding parameter values exist in diierent situations such as during early stages of system design. Although the clients in a system are statistically identical ...
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ژورنال
عنوان ژورنال: Archives Animal Breeding
سال: 2005
ISSN: 2363-9822
DOI: 10.5194/aab-48-346-2005