Lack of transmission of porcine circovirus type 2 to weanling pigs by feeding them spray-dried porcine plasma.
نویسندگان
چکیده
An experiment was conducted to determine whether spray-dried porcine plasma containing 2.47 x 10(5) dna copies of porcine circovirus type 2 (pcv-2) could infect weanling pigs when fed to them. Five specific pathogen-free (spf) weanling pigs were fed ad libitum for 45 days a control diet and six pigs were fed a test diet containing 8 kg sdpp per 100 kg feed. The two groups were housed in separate biosecurity level-3 rooms. None of the pigs in either group developed any clinical signs or became pcv-2 viraemic or seroconverted.
منابع مشابه
Commercially produced spray-dried porcine plasma contains increased concentrations of porcine circovirus type 2 DNA but does not transmit porcine circovirus type 2 when fed to naive pigs.
The porcine circovirus type 2 (PCV2) antibody and DNA status of porcine plasma products collected during the commercial spray-drying process were evaluated. Samples evaluated included 52 pooled liquid plasma (fresh) samples collected at 14 regional abattoirs before transport to 1 of 2 spray-drying facilities, 32 pooled liquid plasma (concentrated) samples collected after arrival at the spray-dr...
متن کاملExplorer Commercially produced spray - dried porcine plasma contains increased concentrations of porcine circovirus type 2 DNA but does not transmit porcine circovirus type 2 when fed to naïve pigs
The porcine circovirus type 2 (PCV2) antibody and DNA status of porcine plasma products collected during the commercial spray-drying process were evaluated. Samples evaluated included 52 pooled liquid plasma (fresh) samples collected at 14 regional abattoirs before transport to 1 of 2 spray-drying facilities, 32 pooled liquid plasma (concentrated) samples collected after arrival at the spray-dr...
متن کاملCommercial spray-dried porcine plasma does not transmit porcine circovirus type 2 in weaned pigs challenged with porcine reproductive and respiratory syndrome virus.
The objective of this study was to evaluate if spray dried porcine plasma (SDPP) containing porcine circovirus type 2 (PCV2) genome supplemented in feed could transmit PCV2 to pigs challenged with porcine reproductive and respiratory syndrome virus (PRRSV). Twenty-three PRRSV-free pigs, non-viraemic for PCV2, were housed in bio-safety level 3 facilities and assigned to four groups in a 2×2 fact...
متن کاملFeeding Management Strategies for Early Weaned Pigs Using Spray Dried Porcine Plasma and Pelleted Diets following Treatment for S. Suis Infection
Three-hundred-seventy-eight, 18-21 day-old, pigs were used to evaluate subsequent weanling pig performance, during the second and third dietary phases, following initial phase 1 exposure to a commercial pelleted starter (CS) diet or farm processed wheat/barley/dried whey based starter diets prepared with, or without, spray dried porcine plasma (PPLS). One-half of the pigs in each treatment also...
متن کاملThe impact of environment and antimicrobial agents on the growth response of early-weaned pigs to spray-dried porcine plasma.
Four 28-d experiments involving 360 weanling pigs were conducted to investigate the effects of including spray-dried porcine plasma (SDPP) in diets from d 0 to 14 after weaning followed by feeding a common diet from d 14 to d 28. In Exp. 1, 80 weanling pigs (4.9 kg BW, 17 +/- 1 d of age) were used to determine the effects of substituting 0, 3, 6, 9, or 12% SDPP for dried skim milk (DSM) and L-l...
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ورودعنوان ژورنال:
- The Veterinary record
دوره 163 18 شماره
صفحات -
تاریخ انتشار 2008