have not yet been approved for use in lactating dairy cattle.
Scientists hope to use these so-called ionophores
for such purposes as scavenging and removing sodium ions from complex solutions while leaving other kinds of ions behind.
Efficacy of ionophores
in cattle diets for mitigation of enteric methane.
Figure 17-13 Unlike ionophores
, anabolic agents have minimal impact on nutrient utilization.
Cytolysis mediated by ionophores
and pore-forming agents: role of intracellular calcium in apoptosis.
Except for plant extracts, ionophores
such as monensin or lasalocid (Guan et al.
1990), or with ionophores
in diets rich in roughage or concentrates (GUAN et al.
Recall from the discussion of additives in Chapter 3 that ionophores
are products that increase the efficiency with which ruminants are able to use feed energy to meet their maintenance energy needs.
Those used purely in animals--such as ionophores
, which improve feed efficiency in sheep and cattle but are too toxic for use in people--are of little concern.
Another alternative is the use of ionophores
that, in addition to improving energy metabolism, reducing the ruminal degradation of dietary protein, increasing the digestibility and milk production, also reduce SFA and increase CLA content in the milk of dairy cows (Duffield et al.
It is similar to that observed with ionophores
in rumen fermentation.