Somatic cell count (SCC) is an indicator of both udder health and milk quality and is measured at an animal level through national milk recording schemes. The objective of this study was to assess the animal and herd factors contributing to elevated SCC (i.e. poorer milk quality). Test day records (n = 2,658,928) from 519,456 cow lactations obtained between 2007 and 2011 were included in the an...


 Penelitian tampilan reproduksi sapi FH (Friesian Hostain) di KPBS Pangalengan telah dilakukan. Tujuan pe- nelitian ini adalah untuk mengetahui, mengkaji dan mengevaluasi Ka- bupaten Bandung. Metode penelitian menggunakan metode survei, pengambilan data dilakukan secara purposive sampling dengan kriteria perah yang sudah laktasi beranak minimal dua kali serta melakukan pada 47 responden a...

Early behavior work with dairy cattle focused on the agonistic interactions and dominance structure. This current behavior project focused on determining social preferences rather than dominance. Two lots of 130 Holstein cows at the Andrews University Dairy were observed 8 nights over the course of 6 weeks. Data was collected in the evening after milking and feeding to allow the cattle time to ...

A strategy for simultaneous sire and cow evaluation of genetic merit was implemented. First lactation records of 1,074,971 Holstein cows in 20,065 herds were included. After inclusion of ancestors, there were 1,741,356 equations: 1,505,938 cow, 229,394 herd-year-season, 6000 sire, and 24 genetic group equations. All known genetic relationships among animals were considered. Genetic group coeffi...

Mummification of the bovine foetus is rare in cows. There is currently limited data available on the success of pregnancies following expulsion of mummified foetuses, especially after expulsion of twin mummified foetuses. This report describes a case of the expulsion of twin mummified foetuses from the uterus two days apart and the process of oestrous synchronisation for a new pregnancy of a fi...

The association between Staphylococcus aureus chronic mammary gland infection and the resulting immune response expressed by the production of specific IgG and IgA antibodies in blood and milk was studied in Israeli Holstein cows. Specific antibodies of the IgG class were detected in sera of 82.6 per cent of the cows chronically infected by S aureus, while in 17.4 per cent no such antibodies co...

Cross sectional data on the prevalence of claw and (inter) digital skin diseases on 4854 Holstein Friesian cows in 50 Danish dairy herds was used in a Bayesian network to create herd specific probability distributions for the presence of three lameness causing diseases. Parity and lactation stage are identified as risk factors on cow level, for the prevalence of the three lameness causing disea...