Effect of sow vaccination against porcine circovirus type 2 (PCV2) on virological profiles in herds with or without PCV2 systemic disease

被引：0

作者：

Lopez-Rodriguez, Alfonso ^{[1
]}

Dewulf, Jeroen ^{[1
]}

Meyns, Tom ^{[2
]}

Del-Pozo-Sacristan, Ruben ^{[1
]}

Andreoni, Christine ^{[2
]}

Goubier, Anne ^{[3
]}

Chapat, Ludivine ^{[2
]}

Charreyre, Catherine ^{[2
]}

Joisel, Francois ^{[2
]}

Maes, Dominiek ^{[1
]}

机构：

[1] Univ Ghent, Fac Vet Med, B-9000 Ghent, Belgium

[2] Merial SAS, Lyon, France

[3] PX Biosolut, S Melbourne, Vic, Australia

来源：

CANADIAN VETERINARY JOURNAL-REVUE VETERINAIRE CANADIENNE | 2016年 / 57卷 / 06期

关键词：

MULTISYSTEMIC WASTING SYNDROME; CELL-MEDIATED-IMMUNITY; POLYMERASE-CHAIN-REACTION; SYNDROME-AFFECTED PIGS; SYNDROME PMWS; PRODUCTION PARAMETERS; REP PROTEINS; RISK-FACTORS; INFECTION; RESPONSES;

D O I：

暂无

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

We investigated porcine circovirus type 2 (PCV2) virological profiles in herds affected (PCVAD-AH, n = 5) or non-affected (PCVAD-NAH, n = 4) by PCV2-associated diseases (PCVAD), before and after 1 y of PCV2 gilt and sow vaccination. Fresh feces from the floor (5 pens/age/farm) and 5 blood samples (1/pen) were collected at 3, 9, 15, 21 wk. Individual feces and blood samples were collected from 5 gilts and 15 sows. Sampling was repeated 1 y after vaccination. Quantitative PCR on feces, PCV2 antibodies in blood serum and cell-mediated immunity were investigated. Before vaccination, pigs of PCVAD-AH had higher viral load in feces (9 and 15 wk), lower IgG and higher IgM (3 wk) and lower lymphocyte counts (9 and 15 wk) suggesting immunosuppression. Vaccination reduced viral load in growers, increased IgG (3 wk) suggesting improved maternal immunity, reduced IgM (3 wk), increased total antibody titers in sows and increased CD79a cells in the pigs.

引用

页码：619 / 628

页数：10

共 36 条

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