Chang-Yu Hou,1,2 Armin Rahmani,3 Adrian E. Feiguin,4 and Claudio Chamon5 1Department of Physics and Astronomy, University of California at Riverside, Riverside, California 92521, USA 2Department of Physics, California Institute of Technology, Pasadena, California 91125, USA 3Theoretical Division, T-4 and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545,...

Torsten Karzig,1 Armin Rahmani,2,3 Felix von Oppen,4 and Gil Refael1 1Institute of Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA 2Theoretical Division, T-4 and CNLS, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA 3Quantum Matter Institute, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4 4Dahlem ...

This study examined the hypothesis that responses of Scottish Blackface (BF, a hill breed) and Suffolk (SUF, a lowland breed) ewes to undernutrition between d 1 and 90 of pregnancy would differ. Over 2 consecutive breeding seasons, ewes (4 pens/treatment; 15 to 20 ewes/pen) were artificially inseminated and from d 1 to 90 after AI allocated to 0.75 (restricted; RES) or 1.0 (control; CON) energy...

Lambs exposed to a heat-stressed environment (33 degrees C, 50% relative humidity) were used in three experiments to determine whether ergovaline (EV) is the primary toxin involved in fescue toxicosis. The first study evaluated the effects of feeding diets containing increasing levels of endophyte-infected tall fescue seed (E+) and decreasing levels of endophyte-free tall fescue seed (E-). The ...

In adult rats, when plasma osmolality increases, water flows across the blood-brain barrier down its concentration gradient from brain to plasma, and brain volume deceases. The brain responds to this stress by gaining osmotically active solutes, which limit water loss. This phenomenon is termed brain volume (water) regulation. We tested the hypothesis that brain volume regulation is more effect...

A flock of 370 Dorset x Romney ewes with up to 96% autumn lambtng was developed without the aid of hormones. Data from flock and experimental records were used to compare the performance of autumnand spring-born lambs and their dams. Preliminary findings for three seasons show that ewes lambed in autumn had a greater spread of lambing, lower litter size and fewer perinatal lamb deaths. Growth o...

The influence of separation from dam on suckling behavior of lambs was tested from day 5 after lambing until the lambs were 8 days old. The twelve ewes with their lambs were randomly assigned in equal numbers to two treatments; separating from dam (S) and non-separating without suckling (NS). Separation from dam resulted in lower duration and higher frequency of suckling. The lambs in S treatme...

A human stool filtrate containing rotavirus which was administered orally to gnotobiotic lambs caused diarrhea, virus excretion, development of antibodies to rotavirus, and pathological changes in the villi of the small intestine. Thus, lambs may serve as experimental animals for the study of human rotavirus infections. This model system was used to study passive protection. Human immunoglobuli...

The aim of this study was to evaluate the influence weaning and concentrate supplementation on characteristics carcass cuts longissimus muscle Suffolk lambs finished a Tifton 85 (Cynodon spp.) pasture. Weaning strategies were evaluated in four finishing systems: i) non-weaned non-supplemented lambs; ii) supplemented with creep feeding; iii) weaned iv) concentrate. In systems weaning, at 46 ± 6 ...

• Willow leaf cobalt concentrations met the requirements for lambs; grass did not. Lambs readily consumed willow leaves. supplemented lambs had significantly higher plasma vitamin B12 concentration. could be used by producers to improve status. Cobalt is an essential trace element in sheep synthesis of rumen support growth and prevent clinical deficiencies (Pine). (Salix spp.) leaves contain a ...