PRRS exists in two distinct forms, reproductive and respiratory, and infected farms may experience one or both. A variety of factors, including swine genetics, the specific PRRS virus variants in the herd, health status of the herd, ages of the animals involved, and pregnancy status, may influence the clinical signs.
8495 Karma. 1. Silicon is a metal and oxygen is a non metal hence it will form both ionic and covalent bonds, pauling principle explains the ratio in detail.Was this answer helpful?495 Karma. 1. Silicon is a metal and oxygen is a non metal hence it will form both ionic and covalent bonds, pauling principle explains the ratio in detail.
This in turn reacts at silicon surface to form elemental boron and silicon dioxide, as follows: 4 BBr 3 + 3 O 2 2 B 2 O 3 + 6 Br 2 2 B 2 O 3 + 3 Si 4 B + 3 SiO 2 2. The information contained herein is offered without charge for use by technically qualified personnel at their discretion and risk.his in turn reacts at silicon surface to form elemental boron and silicon dioxide, as follows: 4 BBr 3 + 3 O 2 2 B 2 O 3 + 6 Br 2 2 B 2 O 3 + 3 Si 4 B + 3 SiO 2 2. The information contained herein is offered without charge for use by technically qualified personnel at their discretion and risk.