Abstract This study evaluated how late gestation metabolizable energy (ME) intake affects performance and metabolism in beef cattle. Primiparous (PP; n = 45) multiparous (MP; 107) Angus-Simmental cows were blocked by calving date randomly assigned to treatments providing 80 (LME; 52), 100 (CME; 51), or 120% (HME; 49) of ME requirements for 53 d prior calving. Postpartum, fed the same diet. Rib ...

market volatility remains one of the most important research fields in agricultural economics.interestingly, price transmission mechanism seems to be symmetric in sectors that are likely to be of high political power.this paper analyzes the price transmission effects from international markets to domestic markets for corn in iran. for this purpose, we estimate the elasticity of substitution bet...

The aim of this study was to compare physical, mental, and biochemical health indicators 48 older women (67 ± 1 year) who practiced multicomponent exercise program (ME, n = 25) self-selected physical activity (PA, 23) for 6 months. It an observational study, which aimed relate a prospective intervention. Displacement speed, lower limb (LL) power, functional capacity, body composition, profile, ...

The etiology of autoimmune thyroid diseases is unclear; however, the extreme female predominance suggests that sex hormones may have a pathogenic role. 2-Methoxyestradiol (2-ME) is present in the serum of women during the ovulatory and luteal phases of the menstrual cycle, and during pregnancy. We investigated the actions of 2-ME and estrogen on thyroid follicular cells. 2-ME induced dramatic c...

Four hundred and twenty, 21-day-old slow-growing chicks were divided randomly into seven treatments, each containing five replicates. Each replicate was kept in a 1 × 1-m floor pen. One treatment was kept under thermo-neutral conditions in a semi-open house and fed a corn-soybean meal diet (positive control). The other six groups were kept under chronic heat stress (CHS) at 38 °C and 60% RH for...

A total of 146 primiparous sows was used in four replications of an experiment to investigate the effect of energy intake during a 28-d lactation on sow and litter performance. Dietary treatments consisted of three energy intakes; 10, 12 or 14 Mcal of metabolizable energy (ME) X sow-1 X d-1. All sows were fed equal amounts of crude protein, vitamins and minerals daily, which met or exceeded sta...

Fifty-five-day-old Sprague-Dawley female rats were given an i.v. injection of 5 mg 7,12-dimethylbenz(a)anthracene, and 15 to 30 days after the appearance of pal pable mammary tumors the rats were given (a) an estradici benzoate (EB) implant in the median eminence (ME), (b) an EB implant outside the ME, (c) an EB implant in the cerebral cortex, or (d) a cholesterol implant in the ME. At 25 days ...

Tri-methylated lysine 20 on histone H4 (Me(3)K20H4) is a marker of constitutive heterochromatin in murine interphase and metaphase cells. Heterochromatin marked by Me(3)K20H4 replicates late during S phase of the cell cycle. Serum starvation increases the number of cells that exhibit high levels of Me(3)K20H4 at constitutive heterochromatin. Me(3)K20H4 is also present at the centromeric heteroc...