|Djurhälsa år 2011|
JO 25 SM 1201
| Första sidan - I korta drag
Statistiken med kommentarer|
Tabeller Fakta om statistiken
Kontaktpersoner, mer information In English
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Calf mortality among different breeds of cattle
Table 1 shows the number of calves that die within a month after birth and is organised after sex and breed. Mortality is generally somewhat higher for bull-calves than for heifer -calves.
Frequency of disease in dairy herds of various sizes
Comparisons between different herd sizes have been made regarding the occurrence of a number of diseases. Milk fever and ketosis decrease with increasing herd size, while the occurrence of mastitis and other diseases increases. The relationship between those diseases showing an increase within larger herds and an increase in infection pressure is supposed to be due to many animals being held in the same building. The result shows that the most apparent decrease in large herds are feeding related diseases. This can be assumed that in larger herds a larger number of technological solutions are available for optimization and control of animal feeding.
Retention of afterbirth, teat injuries and delivery problems show little variation between the different herd sizes, these are.
Frequency of disease in dairy herds from different breeds
Swedish Polled Cattle and Swedish Jersey have the largest occurrence of diseases compared to other breeds.
Occurrence of colic in horses – seasonal variations
A monthly comparison of colic cases was compiled for the three regions in Sweden: Götaland (south of Sweden), Svealand (middle) and Norrland (north). The extent of colic cases is markedly low during the summer months. The diagnoses included in the term “colic” are impaction colic (constipation), incarceration colic, displacement colic, abdominal pain as well as all other diagnoses that include the term “colic.”
These statistics are primarily based on veterinary reports submitted to the central data base of the Swedish Board of Agriculture. The national industry organisation Svensk Mjölk (Swedish Dairy Association) has compiled the data for “Frequency of disease in dairy herds of various sizes,” while information for “Calf mortality among different breeds of cattle” was collected from the central animal database where every cattle owner reports animal transports, births and deaths.