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.
SOLUTION. 1  Sodium is a metal, and oxygen is a nonmetal; therefore, Na 2 O is expected to be ionic. 2  Both phosphorus and chlorine are nonmetals. 3  The NH 4 in the formula represents the ammonium ion, NH 4, which indicates that this compound is ionic. 4  Both oxygen and fluorine are nonmetals.hen an ionic compound is formed from magnesium and oxygen, the magnesium ion has a 2+ charge, and the oxygen atom has a 2â charge. Although both of these ions have higher charges than the ions in lithium bromide, they still balance each other in a one-to-one ratio.