Selection intensity and generation interval were evaluated in a Hereford cattle herd made up of 14 inbred lines and 14 linecross groups corresponding to the lines of inbred sires at the Suan Juan Basin Research Center, Hesperus, Colorado. Selection indexes practiced were calculated in retrospect. Analyses of the records collected from 1946 through 1973 involved weaning weight (WW) and postweani...

ziziphora tenuior is one of the traditional medicinal herbs; the main active chemical composition of this herb is an ingredient named as pulegone which is known well for its anti-inflammatory and analgesic effects. considering, the side effects of synthetic drugs, researcher’s attention has been attracted to the use of herbal medicines.in this study, after inducing ear edema via xylenol, the an...

Administration by stomach tube of 7,12-dimethylbenz(aV anthracene (DMBA) (30 mg/100 gm body weight) in oil caused a decrease in the ovarian weights of C57BL/6J, C3D2F!, CAFl5 B6AFj, B6D2F,, and C57BL/6J X C3HeB/FeJ mice, but it did not affect the ovarian weights of C3HeB/FeJ X NZY mice or of Sprague-Dawley or Fischer rats. DMBA treatment also eliminated the ovarian weight gain, which normally i...

A study was undertaken of the physical and chemical characteristics and insecticide properties of melia (Melia azedarach L.) (Meliaceae) fruit and leaves; melia has been introduced in Chile for ornamental purposes. The physical and chemical properties were evaluated in two stages of fruit and leaf maturity, i.e., green /mature, and mature/juvenile, respectively. Laboratory bioassays were carrie...

Administration by stomach tube of 7,12-dimethylbenz(aV anthracene (DMBA) (30 mg/100 gm body weight) in oil caused a decrease in the ovarian weights of C57BL/6J, C3D2F!, CAFl5 B6AFj, B6D2F,, and C57BL/6J X C3HeB/FeJ mice, but it did not affect the ovarian weights of C3HeB/FeJ X NZY mice or of Sprague-Dawley or Fischer rats. DMBA treatment also eliminated the ovarian weight gain, which normally i...

The synthesis and export of aerolysin, an extracellular protein toxin released by the gram-negative bacterium Aeromonas hydrophila, was studied by pulse-labeling with [35S]methionine. The toxin was synthesized as a higher-molecular-weight precursor. This was processed cotranslationally, resulting in the appearance within the cell of the mature protein, which was then exported to the supernatant...

The dentate gyrus, an important anatomic structure of the hippocampal formation, is one of the major areas in which neurogenesis takes place in the adult mammalian brain. Neurogenesis in the dentate gyrus is thought to play an important role in hippocampus-dependent learning and memory. Neurogenesis has been reported to be increased in the dentate gyrus of patients with Alzheimer disease, but i...

To clarify the existence of reinfection in children bearing an established Ascaris lumbricoides infection, the authors evaluated the weight and the length of worms collected from ten cases of ascaridiasis. The worm burden was greater than 27 worms in nine cases. In seven cases the weight and the length of worms showed little variation, with unimodal distribution of values, suggesting that all t...

The current investigation was carried out on the seminal glands of six apparently healthy mature male Buffalo bulls and six immature. The specimens were collected and examined anatomically and histologically after being fixed in 10% buffered neutral formalin. The specimens were subjected to processing till paraffin sections were obtained and stained. The anatomical and histological findings of ...

Because economic value of carcasses is dependent primarily on carcass weight and carcass quality, feedlot managers have an interest in factors associated with maximizing these two variables. The NRC (1996) proposes that body composition (fat and protein) and carcass characteristics of beef cattle at a specified percentage of mature body weight (BW) are fixed, which indicates that maturity, rath...