Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Agriculture
Evaluation Of Nutritional Factors Affecting Sow Reproductive Longevity, J'Nan E. Wittler
Evaluation Of Nutritional Factors Affecting Sow Reproductive Longevity, J'Nan E. Wittler
Department of Animal Science: Dissertations, Theses, and Student Research
Sow reproductive longevity is an important trait for swine operations from a production and economic standpoint. Previous research has shown that a sow needs to produce 3 litters before she covers the costs associated with introducing her to the operation. A literature review of research conducted related to sow longevity is discussed in Chapter 1. Chapters 2 and 3 present data from the University of Nebraska – Lincoln’s long-term sow longevity research. The research looks at the effects of energy restriction with soy hulls during gilt development on sow reproductive longevity through 4 parities. Chapter 2 presents data from replications …
Using Strategic Supplementation To Enhance Cow/Calf Productivity In Summer Calving Herds In The Nebraska Sandhills, Nicole M. Woita
Using Strategic Supplementation To Enhance Cow/Calf Productivity In Summer Calving Herds In The Nebraska Sandhills, Nicole M. Woita
Department of Animal Science: Dissertations, Theses, and Student Research
Young range beef cows consuming low-quality forage may result in an imbalance of energy and metabolizable protein, which can negatively affect the nutrient status of the cow and reproductive performance. In a 2-yr study conducted at Gudmundsen Sandhills Laboratory near Whitman, NE, 2- and 3-yr-old May-calving range cows (n = 181) grazing native range were individually supplemented daily with one of four supplements: 1) mineral with a target intake of 113 g/d (MIN), 2) MIN with 200 mg per head of Rumensin to with a target intake of 113 g/d (RUM), 3) MIN with a 226 g/d of high RUP …