This study aimed to assess the importance of dietary peanut cake inclusion for young bull growth rate, beef production, and beef quality.
These performance-tested bulls represent the best-documented beef bulls with the highest impact on the breeding programme in Sweden and are therefore important potential transmitters of Chlamydophila spp. by venereal route.
These bulls were compared with 11 fertile beef bulls, slaughtered due to risk of inbreeding in the herd.
When bull spermatozoa (from beef and dairy breeds) were frozen in the presence of HSPA8, beneficial but complex effects on postthaw viability were observed.
Previously, (until 2010/11), approximately 170 beef bull calves were tested annually at the performance station in Gismestad near Linköping, Sweden.
Ten of the farms were rearing dairy-bred bull calves for beef, and 8 farms had dairy herds.
Semen samples from 21 dairy bulls and cauda epididymidis tissue samples from 43 beef bulls were analysed for chlamydial agent by real-time polymerase chain reaction (PCR) including an internal amplification control (mimic).
Moreover, mixing beef bulls induces aggressive interactions, especially when the bulls are of similar weights.
This was also the case for Irish performance tested beef bulls, for which again the most efficient bulls ranked based on RFI had significantly lower DFI than the medium and high groups [ 9].
Bulls also have the angular shape in the rump, unlike most beef bulls do.
