Mortality in cattle up to two years old in Northern Ireland during 1992

Menzies, F. D.; Bryson, D.G.; McCallion, T.; Matthews, D.I.

doi:10.1136/vr.138.25.618

Cited by 14 publications

(16 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Consequently, only the mean national mortality rate excluding the zero values should be used for comparison with studies on large herds (Donovan et al, 1998;Bicalho et al, 2007;Lombard et al, 2007;Stull et al, 2008;Gundelach et al, 2009) or carried out in countries with a large average herd-size (Meyer et al, 2000;Silva del Río et al, 2007;Stull et al, 2008). As in the present study, some reports showed zero calf mortality in 12% of herds (Nielsen et al, 2010), or 237 out of 1,069 farms, with no death up to 2 yr of age (Menzies et al, 1996), suggesting that both results (0-excluded and 0-included) should be presented. Changing the herd-size threshold to include herds in the present analysis had a small effect on the mortality rates for all noncrossed calves and for heifers (Table 4).…”

Section: Database and Calculation Methodsmentioning

confidence: 46%

“…An accurate estimation of calf and heifer mortality is important to define the political and financial priorities for the value chain and cattle health programs. Numerous observational studies have been carried out to document mortality rates in calves and heifers (Meyer et al, 2001;Bicalho et al, 2007;Lombard et al, 2007;Johanson et al, 2011), to define the causes of the deaths (Agerholm et al, 1993;Menzies et al, 1996;Svensson et al, 2006), and to identify some risk factors of young cattle mortality (Chassagne et al, 1999;Svensson et al, 2006;Stull et al, 2008;Gundelach et al, 2009). Except for stillbirth, the classes of age used in the mortality studies differ considerably between studies, although 1 or 2 main causes of mortality can be determined when precise and narrow classes are built (Svensson et al, 2006;Gulliksen et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Perinatal, neonatal, and rearing period mortality of dairy calves and replacement heifers in France

Raboisson

Delor

Cahuzac³

et al. 2013

Journal of Dairy Science

View full text Add to dashboard Cite

Dairy calf and replacement heifer mortality in France was assessed by calculating mortality rates at 0 to 2d (calves), 3d to 1 mo (calves and heifers), 1 to 6 mo of age, and 6 mo of age to first calving (heifers) using the national identification database. Between birth and 2-d-old, 261,000 and 251,000 of the 3.56 and 3.43 million calves born in 2005 and 2006, respectively, died. The overall 0- to 2-d-old calf mortality rate was around 6.7%, which is similar to the low range of values reported in the literature. Among the 2.38 and 2.39 million calf-month, 139,000 and 133,000 died between 3d and 1 mo of age in 2005 and 2006, respectively. Among the 3d to 1 m of age group, dairy calf mortality rate was around 5.7%. Such a rate has not been reported previously because of the great differences in age classes between studies. For the 0- to 2-d-old and 3-d- to 1-mo-old calves, annual mortality was zero on 26 and 44% of the farms, respectively. Calf mortality during the first month of life increased in winter (to 12-17%) and decreased in summer (to 8-12%), with a small peak in June or July. Mortality during the first month of life is higher in males than in females, with a mortality odds ratio of 1.20 (and 95% confidence interval of 1.19-1.21). Such a difference is also found within the noncrossed or beef-crossed calf subpopulations. Disregarding the sex, the mortality of beef-crossed calves is slightly less than that of noncrossed dairy calves, with a mortality odds ratio of 0.98 (and 95% confidence interval of 0.98-0.99) before 1 mo of age. In heifers, around 51,000, 35,000, and 40,900 out of the 1.2 million 3-d- to 1-mo-old, 1.1 million 1- to 6-mo-old, and 950,000 6-mo-old to first calving heifers died, respectively. The respective mortality rates were 4.5, 3.1, and 4.1%; these rates are similar to the low range of values previously published. The proportions of farms with no heifer mortality during a year were higher than for calves, between 60 and 70%. The mortality probability for heifers was very high for the first day of life (95% survival between 2-30 d of age), then decreased during the first year of life and became constant up to around 3 yr of age (88% survival at 36 mo of age). The risk of mortality is higher in Montbéliarde and Normande heifers compared with Holstein. In conclusion, and beyond the average mortality rates, farmers and farm advisors should keep in mind the broad range of mortality values, which shows that very low mortality (1-2%) can be achieved, even in animals with a known high risk of mortality, such as beef-crossed dairy calves.

show abstract

Section: Database and Calculation Methodsmentioning

confidence: 46%

Section: Introductionmentioning

confidence: 99%

Perinatal, neonatal, and rearing period mortality of dairy calves and replacement heifers in France

Raboisson

Delor

Cahuzac³

et al. 2013

Journal of Dairy Science

View full text Add to dashboard Cite

show abstract

“…Essa característica é importante para explicar a maior ocorrência de determinadas doenças na região Sul do Brasil, quando se compara essa a outras regiões do mundo. Em estudos retrospectivos de doenças de bovinos em outros países, em que predomina o confinamento, observa-se maior prevalência de pneumonias, distúrbios nutricionais, metabólicos e injúrias físicas como causas de morte ou razões para eutanásia em bovinos (Menzies et al 1996, Church & Radostits 1981, Smith 1998, Thomsen et al 2004, Thomsen & Houe 2006, McConnel et al 2008, Watson et al 2008, Waldner et al 2009 Pedroso et al 2004, Rissi et al 2007). …”

Section: Discussionunclassified

Doenças de bovinos no Sul do Brasil: 6.706 casos

et al. 2010

View full text Add to dashboard Cite

The diseases affecting cattle in southern Brazil were studied through a review of the necropsy reports filed at the Laboratório de Patologia Veterinária of the Universidade Federal de Santa Maria (LPV-UFSM), Rio Grande do Sul, and pertaining to the examination of 6.076 cattle during 1964-2008. Of those exams 29.9% were necropsies performed at the LPV-UFSM and 79.1% were mailed-in organ fragments from necropsies performed at the field by veterinary practitioners. Autolysis and non-representative sampling o mailed in organs were the main reasons for non-conclusive diagnosis. Poisoning by Senecio spp. was the main cause of death in cattle in this study and poisonous plants together with toxi-infections accounted for 22.8% of the cases with conclusive diagnosis. Inflammatory diseases together with parasitic diseases accounted for more than 30% of cattle diseases and babesiosis and anaplasmosis were the main diseases in this category. Other categories were distributed in the following order: neoplasms and tumor-like lesions (13.87%), diseases caused by physical agents (2.7%), metabolic and nutritional diseases (2.46%), circulatory disturbances (1.4%), degenerative diseases (1.1%), developmental disorders (0.54%), iatrogenic diseases and sundry lesions. The high prevalence of tumors in cattle in this study was attributed to the chronic ingestion of Pteridium aquilinum, a common toxicosis in the region. The main diseases in cattle from the studied region are related to environmental factors associated to the predominantly husbandry practices adopted in the region.INDEX TERMS: Diseases of cattle, causes of death, retrospective study, epidemiology, pathology.

show abstract

“…The Republic of Ireland and Northern Ireland are typical in this regard, and with the exception of the first month of life, when enteric disease and septicaemia are foremost, successive Animal Disease Surveillance Reports have listed respiratory disease as the most commonly diagnosed cause of mortality across all other age groups (Anon 2011, 2012). Available evidence indicates that this has been the case for an extended period (Menzies and others 1996). …”

Section: Introductionmentioning

confidence: 98%

Patterns of detection of respiratory viruses in nasal swabs from calves in Ireland: a retrospective study

O’Neill¹,

Mooney²,

Connaghan³

et al. 2014

Veterinary Record

View full text Add to dashboard Cite

A retrospective analysis was conducted to investigate the prevalence and seasonality of bovine viral diarrhoea virus (BVDV), bovine coronavirus (BoCV), bovine herpesvirus-1 (BoHV-1), bovine respiratory syncytical virus (BRSV) and parainfluenza virus-3 (PI3V) in calves (aged three months and below) in Ireland. Results from real-time PCR testing, including cycle threshold values, conducted on nasal swabs (single or pooled) submitted from 1364 respiratory disease outbreaks between January 1, 2008 and December 31, 2012 were included in this study. One or more viruses were detected in 34.6 per cent of submissions, with BoCV detected most frequently (22.9 per cent), followed by BRSV (11.6 per cent), PI3 V (7.0 per cent), BoHV-1 (6.1 per cent) and BVDV (5.0 per cent). The detection rate of all viruses was higher when pooled multiple swabs were submitted from outbreaks rather than single swabs, with these differences being significant for all except BVDV. Two or more viruses were detected in 39.4 per cent of positive submissions, with BoCV and BRSV most commonly present as one of the two partners in detection. With the exception of BVDV, which was detected all year round, the others showed a clear seasonal pattern, being most commonly detected in winter and spring.

show abstract

Mortality in cattle up to two years old in Northern Ireland during 1992

Cited by 14 publications

References 10 publications

Perinatal, neonatal, and rearing period mortality of dairy calves and replacement heifers in France

Perinatal, neonatal, and rearing period mortality of dairy calves and replacement heifers in France

Doenças de bovinos no Sul do Brasil: 6.706 casos

Patterns of detection of respiratory viruses in nasal swabs from calves in Ireland: a retrospective study

Contact Info

Product

Resources

About