The correlative dependence of sires gametogenesis on heliophysical factors
There has been identified the bulls with the maximum ejaculate volume
belonging to the line Montvik Chieftain 95679, exceeding by 23,5% on this parameter
bulls of the Simmental lines. The bulls of different genotypes show a reliable negative
correlation in the main signs of sperm production with cosmophysical indicators of solar
and geomagnetic activity. The Raphael’s 3111 lines bulls have been more sensitive to
the learned factors of cosmic influence than Bravo’s 6802 line bulls. Among the Holstein
lines the most stable bulls in gametogenesis have been the Montvik Chieftain 95679.
The leastest tolerance have the S.T. Rockit’s 252803 lines bulls. The generative activity
of bulls significantly has decreased with the increasing of the geomagnetic disturbance.
The correlative dependence of sires gametogenesis on heliophysical factors
There has been identified the bulls with the maximum ejaculate volume
belonging to the line Montvik Chieftain 95679, exceeding by 23,5% on this parameter
bulls of the Simmental lines. The bulls of different genotypes show a reliable negative
correlation in the main signs of sperm production with cosmophysical indicators of solar
and geomagnetic activity. The Raphael’s 3111 lines bulls have been more sensitive to
the learned factors of cosmic influence than Bravo’s 6802 line bulls. Among the Holstein
lines the most stable bulls in gametogenesis have been the Montvik Chieftain 95679.
The leastest tolerance have the S.T. Rockit’s 252803 lines bulls. The generative activity
of bulls significantly has decreased with the increasing of the geomagnetic disturbance.
