Distribution, population and reproductive biology of Uca sindensis were studied in a subtropical mangrove of Pohl port in the northern Persian Gulf. Sex ratio, distribution, population structure, handedness (evenness), diameter burrow, breeding season and fecundity were investigated. Ten 0.5 m2 quadrates were randomly sampled during low tide periods from October 2009 to September 2010.A total o...

The objective of this study was to investigate the effect of birth weight (BW) on future milk production and reproductive performance in Iranian Holstein cattle. Records of Holstein cows between 1967 and 2010 were obtained from the Animal Breeding Center of Iran. Birth weights within each herd were grouped into five categories based on the standard normal distribution curves (z ≤-0.8416, -0.841...

and so are involved in food webs." "We are the host and the starting point, however unwillingly or unwittingly, of a variety of parasitic food chains." "Man can still climb trees but is almost exclusively terrestrial." Isolite size and breeding behavior, ecological efficiency and energy transfer are discussed, as are gestation, periods of nursing, infant mortality among recently weaned children...

and so are involved in food webs." "We are the host and the starting point, however unwillingly or unwittingly, of a variety of parasitic food chains." "Man can still climb trees but is almost exclusively terrestrial." Isolite size and breeding behavior, ecological efficiency and energy transfer are discussed, as are gestation, periods of nursing, infant mortality among recently weaned children...

The current study assessed the usefulness of in vivo high frequency ultrasound imaging (ultrasound biomicroscopy, UBM) for dynamic study of the ovarian structures in laboratory rodents. UBM imaging was performed, by using a 40 MHz probe, in 12 C57BL/6J female mice and four Wistars female rats at breeding age and during different reproductive periods. UBM provided outstanding images of both foll...

Metabolic blood profiles were studied in a total of 30 female mink (Mustela vison) at different planes of nutrition prior to the breeding season in a control (CON; n = 10), a flushed (FLUSH; n = 10) and a negative energy balance group (NEG; n = 10). The animals were kept in metabolism cages or under normal farm conditions, respectively. The experiment, which was divided into six 1-week periods,...

The aim of this study was to investigate the interaction between fish cage culture and sediment bacterial contamination in the area southern of Caspian Sea. For this purpose, sampling of sediment was collected in Mazandaran province (Nowshahr region) during the rainbow trout farming period at different distances (shadow, 200 and 1000 m from the cage) in 2017-2018. The results showed that in the...

The serum and fecal testosterone (T) concentrations and testicular sizes of two male bharals (Pseudois nayaur) were determined for approximately one year. The profiles of the fecal T concentrations showed a similar tendency as the profiles of serum T concentrations, and there was a significant correlation between serum and fecal T concentrations (r=0.72). T concentrations rose drastically in Oc...

Twoand 3-year-old beef bulls were exposed to 25 or 40 beef cows on pasture during a 90-day breeding period. Reproductive performance of bulls by age of bull and size of cow group was evaluated in terms of percentage calf crop. Results indicated that reproductive performance of 2-year-old bulls was higher, but not significantly different (P>.05), than that of 3-year-old bulls. The percentage cal...

New fruit varieties are needed to satisfy consumers, and the industry is facing new challenges in order to respond to these demands. The emergence of genomic tools is releasing information on polymorphisms that can be utilized to expedite breeding processes in species that are difficult to breed, given the long periods of time required to get new varieties. The present review describes the curr...