Data/hora: 12/06/2024 02:27:26

Provedor de dados: | 21
País: | Germany
Título: | Prevalence of Anaplasma phagocytophilum infection and effect on lamb growth
Autores: | Grøva, Lise; Olesen, Ingrid; Steinshamn, Håvard; Stuen , Snorre.
Data: | 2011
Ano: | 2011
Palavras-chave: | Animal husbandry; Sheep and goats; Health and welfare.
Resumo: | Background: A major challenge in sheep farming during the grazing season along the coast of south-western  Norway is tick-borne fever (TBF) caused by the bacteria Anaplasma phagocytophilum that is transmitted by the tick  Ixodes ricinus.  Methods: A study was carried out in 2007 and 2008 to examine the prevalence of A. phagocytophilum infection  and effect on weaning weight in lambs. The study included 1208 lambs from farms in Sunndal Ram Circle in Møre  and Romsdal County in Mid-Norway, where ticks are frequently observed. All lambs were blood sampled and  serum was analyzed by an indirect fluorescent antibody assay (IFA) to determine an antibody status (positive or  negative) to A. phagocytophilum infection. Weight and weight gain and possible effect of infection were analyzed  using ANOVA and the MIXED procedure in SAS.  Results: The overall prevalence of infection with A. phagocytophilum was 55%. A lower weaning weight of 3%  (1.34 kg, p &lt; 0.01) was estimated in lambs seropositive to an A. phagocytophilum infection compared to  seronegative lambs at an average age of 137 days.  Conclusions: The results show that A. phagocytophilum infection has an effect on lamb weight gain. The study  also support previous findings that A. phagocytophilum infection is widespread in areas where ticks are prevalent,  even in flocks treated prophylactic with acaricides.
Tipo: | Journal paper
Idioma: | Inglês

Identificador:

http://orgprints.org/19866/1/PAPER_I.pdf

Grøva, Lise; Olesen, Ingrid; Steinshamn, Håvard and Stuen , Snorre (2011) Prevalence of Anaplasma phagocytophilum infection and effect on lamb growth. Acta Veterinaria Scandinavica, 53 (30), pp. 1-7.

info:doi/10.1186/1751-0147-53-30

Relação: | http://orgprints.org/19866/
Formato: | application/pdf