Effect of vaccination with a modified live porcine reproductive and respiratory syndrome virus vaccine on growth performance in fattening pigs under field conditions.
Effect of vaccination with a modified live porcine reproductive and respiratory syndrome virus vaccine on growth performance in fattening pigs under field conditions.
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DOI：
10.1292/jvms.16-0137
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发表时间：
2016-10-01
期刊：
影响因子：
--
通讯作者：
Kim HK
中科院分区：
文献类型：
--
作者：
Lyoo KS;Choi JY;Hahn TW;Park KT;Kim HK
猪繁殖与呼吸综合征病毒（Porcine reproductive and respiratory syndrome virus，PRRSV）给全球养猪业造成了巨大的经济损失。本研究旨在评价商业化PRRSV改良活病毒（MLV）疫苗在常规饲养生长/肥育猪中的效力。在生长至肥育场地，为A、B、C和D组指定了4个畜棚。A畜棚的所有猪接种商业PRRSV MLV疫苗，而作为对照组的B、C或D畜棚的猪未接种疫苗。在接种后0、20、40和60天，从每个猪舍随机选择并标记的20头猪连续流血的，并使用商业酶联免疫吸附测定试剂盒检测血清学应答。测量体重以计算平均日增重（ADG）。血清学检测表明，在疫苗接种后40天，PRRSV疫苗接种组的血清阳性率高于未接种组。A组平均日增重显著高于B组和C组，A、B、C和D组平均体重分别为0.82 ± 0.017、0.76 ± 0.016、0.74 ± 0.019和0.81 ± 0.018 kg。总之，本研究报告了田间条件下生长/肥育猪中PRRSV MLV疫苗的血清学应答和生长性能参数。
Porcine reproductive and respiratory syndrome virus (PRRSV) has caused significant economic losses to the global swine industry. The present study aimed to evaluate the efficacy of a commercial PRRSV modified live virus (MLV) vaccine in conventionally reared growing/finishing pigs. Four barns were designated for groups A, B, C and D in the growing-to-finishing site. All pigs of the A barn were vaccinated with a commercial PRRSV MLV vaccine, whereas pigs of the B, C or D barn as control groups were unvaccinated. Twenty pigs randomly selected and tagged from each barn were serially bled at 0, 20, 40 and 60 day-post-vaccination, and tested for serological response with a commercial enzyme-linked immunosorbent assay kit. Body weights were measured to calculate the average-daily-weight gain (ADG). Serological assays indicated that the seropositivity of the PRRSV-vaccinated group was higher than that of the unvaccinated groups at 40 day-post-vaccination. ADG of group A was significantly higher than that of groups B and C, and the mean weights of groups A, B, C and D were 0.82 ± 0.017, 0.76 ± 0.016, 0.74 ± 0.019 and 0.81 ± 0.018 kg, respectively. In conclusion, the present study reports the serological responses and growth performance parameters by the PRRSV MLV vaccine in growing/finishing pigs under field conditions.
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影响因子：
2.5
作者：
Opriessnig, T.;Gimenez-Lirola, L. G.;Halbur, P. G.
通讯作者：
Halbur, P. G.
影响因子：
3.7
作者：
Linhares, Daniel C. L.;Johnson, Clayton;Morrison, Robert B.
通讯作者：
Morrison, Robert B.
DOI：
10.5501/wjv.v1.i1.23
发表时间：
2012-02-12
期刊：
World journal of virology
影响因子：
--
作者：
Charerntantanakul, Wasin
通讯作者：
Charerntantanakul, Wasin
影响因子：
5.5
作者：
Linhares, Daniel C. L.;Cano, Jean Paul;Dee, Scott A.
通讯作者：
Dee, Scott A.
DOI：
10.1111/j.1439-0442.2007.00932.x
发表时间：
2007-08-01
期刊：
JOURNAL OF VETERINARY MEDICINE SERIES A-PHYSIOLOGY PATHOLOGY CLINICAL MEDICINE
影响因子：
--
作者：
Kritas, S. K.;Alexopoulos, C.;Kyriakis, S. C.
通讯作者：
Kyriakis, S. C.