a$.$ Problem $1$: Formulate a diet for a $1300$ lb dry beef cow in the last third of gestation $($last $90$ days of pregnancy$).$ Formulate the diet using Smooth Bromegrass as the base forage. Include $1\%($DM$)$ of the Salt TMin premix to meet mineral and vitamin requirements. Use any of the feeds listed below to balance this diet to meet her nutrient requirements. The goal of this diet is to meet requirements to maintain a BCS of $5$ at calving in order to have a successful breeding program.$$b$.$ Problem $2$: These same cows have just calved and are now nursing calves during early lactation $($first $90$ days after calving; Critical period #$1)$ producing $25$ lbs of milk per day. Formulate a diet for these lactating cows using Smooth Bromegrass as your base forage and any of the feeds listed below. As before, include $1\%($DM$)$ of the Salt TMin premix to meet mineral and vitamin requirements. The goal of this diet is to meet requirements to support targeted milk production and to maintain a BCS of $5$ in order to have a successful breeding program.$$FeedsSalt TMin $=$ mineral$-$vitamin premix:Ca $=12\%$ P $=6\%$Feeds $$/$ton:$$ Smooth Bromegrass: $$160/$ton$$ Corn stalks: $$50/$tonEnergy concentrate feeds$$ Corn grain: $$120/$ton$$ Corn gluten feed: $$170/$ton$$ Wheat midds: $$110/$ton$$ Protein concentrate feeds$$ Distillers grain: $$130/$ton$$ Soybean meal: $$320/$ton$$ Cottonseed meal: $$240/$ton$$ Minerals$/$Premix$/$Urea ingredients$$ Dicalcium Phosphate: $$250/$ton$$ Limestone: $$100/$ton$$ Urea: $$600/$ton$$ Salt TMin premix: $$1,100/$ton