Life Sciences Commons^™

Evaluation Of Milk Production In Western Whiteface And Navajo-Churro Ewes, Marla Faye Brindley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Western Whiteface and Navajo-Churro Ewes, two types of sheep present in the Intermountain West, were compared for their milk production ability. Amount of milk produced per individual and the group milk composition were analyzed for butterfat, lactose, somatic cell count, protein, calcium, and phosphorous.

Ewes were fed ad libitum alfalfa hay and had access to free-choice grain while in the milking parlor. Lambs were weaned at 35 d of age and removed to another holding area and placed on creep feed . Ewes were milked for 90 d following the weaning of the lambs.

Western Whiteface ewes had a much …

The Effects Of Feeding Chelated Metal Proteinates On Milk Production And Reproductive Performance In Holstein Dairy Cows, Ben James Hardcastle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-two primiparous Holstein heifers were allocated to one of two treatments. Treatments consisted of: 1) basal ration plus 226.8 g inorganic mineral supplement (control); and 2) basal ration plus 226.8 g inorganic mineral and metal proteinate supplement (50:50). Individual heifer performance was measured during the final 10 weeks of the prepartum period. Feed intake and refusals were recorded daily. Individual heifer body weights recorded weekly did not differ significantly. Blood samples taken at 4-week intervals did not differ in plasma concentration between treatments. Calf birth weights for control heifers were not significantly higher than calves from the treatment heifers.

The …