Four new articles have been posted to the American Sheep Industry Association's Sheep and Goat Research Journal. The results for each study are available by clicking on the Research Journal tab at www.sheepusa.org.
Pregnancy Rates after Ewes were Treated with Estradiol-17? and Oxytocin written by G.S. Lewis -- This experiment was conducted to determine whether treating ewes with estradiol-17? and oxytocin on day six and day seven, respectively, after the expected day of onset of estrus and mating would affect pregnancy rates on day 25.
Manipulating Sheep Browsing Levels on Coyote Willow (Salix exigua) with Supplements written by A.L. Lujan, S.A. Utsumi, S.T. Smallidge, T.T. Baker, R.E. Estell, A.F. Cibils and S.L. Ivey -- This study investigated the feasibility of manipulating sheep preference for coyote willow by feeding supplements that were predicted to either suppress or stimulate intake levels of this woody plant.
Effects of Physical Isolation on Serum and Salivary Cortisol and Components of Complete Blood Counts in Yearling Ewes written by D.T. Yates, A.R. Otis, C.A. Warner, L.J. Yates, R.A. Halalsheh, M.B. Horvath, D.M. Hallford and T.T. Ross -- The objective of the present study was to evaluate changes in traditional stress markers, including serum cortisol concentration, salivary cortisol concentration and components of complete blood counts in sheep exposed to physical, but not visual or auditory, isolation for 10 days and to quantify physiological stress levels in these isolated sheep.
Research Note: Sheep Antiserum as an Antibody Supplement in Newborn Lambs written by J.L. Pommer -- The purpose of this research project was to determine if a sterile, irradiated, hyper-immune serum product derived from healthy, hyper-immunized sheep could be used as an antibody supplement in newborn lambs.