Influence of individual or group housing of newborn calves on rotavirus and coronavirus infection during the first 2 months of life

被引：10

作者：

Bertoni, E. A. ^{[1
]}

Bok, M. ^{[2
]}

Vega, C. ^{[2
]}

Martinez, G. M. ^{[3
]}

Cimino, R. ^{[4
]}

Parreno, V. ^{[2
]}

机构：

[1] INTA, Area Invest Salud Anim, Inst Invest Anim Chaco Semiarido, RN 68 Km 172, RA-4403 Salta, Cerrillos, Argentina

[2] Consejo Nacl Invest Cient & Tecn, Inst Virol & Tecnol, IVIT CICV & A,Inst Nacl Tecnol Agr INTA, Unidad Ejecutora,INCUINTA, Nicolas Repetto & Reseros S-N, RA-1686 Buenos Aires, DF, Argentina

[3] INTA EEA, Area Prod Anim, Salta, Argentina

[4] UNSA, Fac Ciencias Nat, Catedra Quim Biol, Salta, Argentina

来源：

TROPICAL ANIMAL HEALTH AND PRODUCTION | 2021年 / 53卷 / 01期

关键词：

Bovine coronavirus; Bovine rotavirus; Dairy calf; Group housing; Individual housing; Longitudinal study; MOLECULAR CHARACTERIZATION; ANTIBODY-RESPONSES; DAIRY HERDS; DIARRHEA; COLOSTRUM; SYSTEMS; RISK; BEEF;

D O I：

10.1007/s11250-020-02540-y

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Bovine rotavirus A (RVA) and bovine coronavirus (CoV) are the two main viral enteropathogens associated with neonatal calf diarrhea. The aim of the present work was to study the impact of group and individual housing systems in the epidemiology of RVA and CoV infection. Eleven calves reared in individual housing (FA) and nine calves in group housing (FB) were monitored during the first 7 weeks of life. Stool and serum samples were screened for RVA and CoV antigens by ELISA. IgG1 antibodies (Ab) to both antigens were also measured. From the 160 fecal samples collected, the proportion of positive samples to RVA and CoV was significantly higher in FB (23.6%) than in FA (9%) (p=0.03). The geometric mean of colostral IgG1 Ab titers to CoV and RVA in FA (IgG1 anti-CoV 1024 and anti-RVA 1782.9) was lower than in FB (IgG1 anti-CoV 10,321.2 and anti-RVA 4096) at birth. Calves less than 2 weeks of life from FB had a higher risk of being infected by RVA (OR=4.9; p=0.01) and CoV (OR=17.15; p=0.01) than calves from FA. The obtained results showed that there was higher RVA and CoV shedding in group-housed calves than in individual-housed animals.

引用

页数：6

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