luke's history class, american history, we had a representative from u.c. davis and i said no i could never get into u.c. davis and it was because of people like ms. luke and others and supported me is why i ended up at a place like u.c. davis. and so they had the excitement about their kids. and we have to make sure we get that excitement back because that's how we're going to get past this. that's how we are going to thrive. making this decision was hard. i talked to a lot of people. i talked to people i didn't even really want to talk to. i'm talking about people who just walk up to you on the streets and you're late for something and they're like mayor, can i tell you something about what i think and i'm like sure. but you know a common theme amongst everyone i talked to, every organization, every group of parents, they always talked about putting kids first. dealing with the challenges of mental health loss. dealing with the challenges at the forefront of what these children have experienced because we as adults have experienced it too. but just imagine as a

. >> reporter: mallory honan is a doctoral student at u.c. davisd running this 12 week experiment testing a new microbial probiotic additive called amplio. >> i will sample their milk as well as their blood. i weigh them weekly just to make sure that we're not compromising any of their important production parameters because if we feed an additive that reduces methane, but then it compromises all these components that the farmers are paid for, then it's not really actually helping. >> reporter: measuring the methane requires a special stall called a greenfeed machine that delivers little treats lled cow cookies. while the cow is inside the stall eating, data on methane, carbon dioxide, and hydrogen are collected. >> they have access to the greenfeed all the time because methane isn't emitted at a constant rate. so if you measured methane from a cow right at this moment, that's not necessarily what she's emitting all day because it's very much linked to their feed intake. so we want to be measuring methane over a 24 hour scale and getting as many da

luke's history class, american history, we had a representative from u.c. daviso i could never get into u.c. davis and it was because of people like ms. luke and others and supported me is why i ended up at a place like u.c. davis. and so they had the excitement about their kids. and we have to make sure we get that excitement back because that's how we're going to get past this. that's how we are going to thrive. making this decision was hard. i talked to a lot of people. i talked to people i didn't even really want to talk to. i'm talking about people who just walk up to you on the streets and you're late for something and they're like mayor, can i tell you something about what i think and i'm like sure. but you know a common theme amongst everyone i talked to, every organization, every group of parents, they always talked about putting kids first. dealing with the challenges of mental health loss. dealing with the challenges at the forefront of what these children have experienced because we as adults have experienced it too. but just imagine as a kid and what

u.c.-davis there's been a lot of studies on oil-based additives, plant-based additives and how that's working on reducing emissions. we need more funding to go in that category. we need less restrictions from f.d.a. when they take a look at those additives because they're looking at that as an antibiotic and having to go through that process is cumbersome, it takes a long time. time is of the essence, right? and some of that stuff, we need to streamline that process. ms. spanberger: and some antibiotics are natural plant-based, isn't that correct? mr. medeiros: absolutely. absolutely. they're either oil-based or plant-based. a lot of them is seaweed. when we take a look at these options, we need to streamline that process and we need to put more funding towards that. because companies, when they start taking a look at the process, they're not willing to invest, right? it's taking too long, it's too expensive. those are the avenues. we have to remember 45% of emissions comeling coming from a cow is enteric, and we have to remember, especially in the dairy sector, not everybody's going to be ab