Pregnancy rate, calf survival rate to weaning and calf age at weaning of several types of crossbred cows (2/3 or more Brahman) were compared to those of straightbred Brahman and Angus cows over a 1 2 9 period at Subtropical Agricultural Research Station near Brooksville, FL. The purpose of this study was to determine the relative importance of additive vs nonadditive genetic effects on reproduc...

background: controlled ovarian hyper stimulation coh/iui represents a therapy applicable to a wide variety of infertility diagnosis with no significant mechanical distortion of pelvic viscera. identified variables influenced in intra uterine insemination include: age, cause of infertility, sperm number, motility and normal percentage, use of gonadotropine and number of attempts at iui. the role...

Effects of inbreeding and heterosis and the difference between them were estimated by comparing linecross (L), topcross (T), inbred (I) and control line (C) Hereford females for reproductive and preweaning growth traits of their progeny. Inbred females (average inbreeding coefficient = 26.5%) originated from four single-sire inbred lines. Control females (average inbreeding coefficient = 6.9%) ...

conclusions cmm in yazd is a low-incidence skin tumor that shows a relatively fixed incidence between 1988 and 2008, higher incidences of cmm were found in sun-exposed areas (especially head and neck areas), with more incidence in men. skin cancers and cmm incidence in iran is lower than western countries, most probably due to geographical zone, genetic factors, skin type, society-related custo...

the effects of four corn hybrids, keynes540, keynes410, ksc260 and ksc400, were investigated on life table parameters of the beet armyworm in a growth chamber that was set at 25 ± 1 ºc, 65 ± 5% rh and 16:8 (l: d) photoperiod. the highest survivorship (lx) of adults were 0.77, 0.70, 0.62 and 0.58 on ksc260, keynes410, keynes540 and ksc400, respectively. the highest age-specific fecundity (mx) of...

conclusions the survival rate after in-hospital cpr was very low. the duration of cpr and the time of initiating cpr effects patients’ outcomes. these findings highlight the crucial role of an organized, skilled, well-established and timely cpr team. background despite several studies, there is no agreement on factors that affect survival after in-hospital cardiopulmonary resuscitation (cpr). o...

background: esophageal cancer is one of the prevalent cancers in east azerbaijan province. the aims of this study are to estimate the survival rate of patients with esophageal cancer by treatment modalities and tumor location, as well as risk factors such as cigarette smoking, family history, age at diagnosis, and gender. materials and methods: in a cross-sectional study we evaluated 142 patien...

the main vector of malaria in europe and palearctic region is anopheles maculipennis complex. in order to determine the survival rate of an. maculipennis s.l. this study was carried out in garaboteh (zanjan province, iran) in july 2003. in this study anophelines were sampled for 31 consecutive days from five fixed animal shelters and five light traps. out of 24481 collected an. maculipennis s.l...

predation rate is basic to any investigation of prey-predator interaction and a major component in the selection of predators for biological control. the predation rate of variegated lady beetle, hippodamia variegata (goze), fed on different densities (20, 40, 60, 80 and 100) of third instar nymphs of cotton aphid, aphis gossypii glover, was studied under laboratory conditions (25 ± 1 °c, 65 ± ...

BACKGROUND The likelihood of spontaneous conception in subsequent cycles is important for a balanced management of infertility. Previous studies on time to pregnancy are mostly retrospective and biased because of exclusion of truly infertile couples. The study aim was to present a non-parametric estimation of cumulative probabilities of conception (CPC) in natural family planning (NFP) users il...