Effect of exposure of sound signals in semen collection areaon quantity and quality of semen in Hariana bulls

Abstract

The present experiment was conducted to evaluate the effect of two different beats {100 and 150 BPM (Beat Per Minute)} of musical sound signals {intensity below 85 dB(decibel)} on reproductive performance of Hariana bulls maintained at semen biology lab of DDD (District Dairy Demonstration) Farm within the premises of Instructional Livestock Farm Complex (ILFC). The present experiment was carried out for an aggregate time period of three and half months (within autumn season) and was accomplished in three phases. Same four Hariana bulls were used as experimental animals in three different phases of experiments to avoid individual effect of bulls as well as to overcome the limitations of limited numbers of bulls. During the first (control) phase of experiment the bulls were not exposed to any additional source of sound (T1) except the normal environmental sound in the semen collection area. In second and third phase, bulls were exposed to a musical instrumental sound signal of 100 (T2) and 150 (T3) BPM with intensity below 85 dB. Each phase of the experiment was done for a period of one month (four weeks) one after another in continuation but the third phase was started after a gap of three weeks from the second in order to cancel out the persistent effect of sound exposure to bulls during second phase of investigation. The effect of exposure of sound signals on volume (6.58±0.29) ml, concentration (1018.72±49.92) millions/ml, mass (3.98±0.07) and progressive motility (72.97±0.80%), head (1.93±0.21%), middle piece (0.63±0.15%), and tail (2.56±0.28%) of sperm and HOST (79.22±0.69) was highly significantly better (P is less than 0.01), with an exposure of a sound signal of 150 BPM with intensity below 85 dB.

Yield of spring wheat depending on the level of mineral nutrition and the use of biologically active substances under condition grown of Afghanistan

“…Also use of 160-90-60 Kg/ha NPK + 200 ppm GA3, in 2023 year had a significant effect on grain yield of spring wheat compared to other treatments. Reported that the application of N up to 150 kg/ha had significantly increased the grain yield of wheat [15]. Same results reported by (10,16,4).…”

Noise as a factor of environmental stress for cattle – A review

“…Loud noise, such as the crying of a child, shouting, or the clanging of metal elements, causes stress reactions in cattle and negatively affects their behaviour, coordination, milk yield, and fertility (Waynert et al, 1999;Pajor et al, 2000;Hemsworth et al, 2003). Moreover, excessive noise can cause fertility disorders in bulls (Yadav et al, 2018).…”