objective it has previously been shown that prenatal maternal administration of boswellia serrata gum resin (frankincense) improved learning and memory performance associated with an increase in the size of neuronal bodies in ca3 (cornu ammonis) of hippocampus. continuing the previous work, a morphometric study was designed on ca3 field to examine precisely the effect of prenatal administration...

wide variety of timings and techniques has been used based on the housing, production, availability of requirements etc. this current study was done for a morphologic evaluation of the cow's digit in different trimming times. a dairy herd with 2200 milking cow, free stalls barns, average daily production of 36 liters per cow was selected. forty cows were assigned to four groups based on hoof tr...

abstract background: improvements in culture media formulations have led to an increase in the ability of sheep embryo in culture throughout the preimplantation period. objective: this study was carried out to evaluate the effects of various concentrations of mem vitamins during in vitro maturation of sheep oocytes and subsequent embryo development. materials and methods: sheep ovaries were col...

The transcription of structural and intervening sequences of the chicken ovalbumin gene was studied in nuclei isolated from the oviduct, liver, and spleen of chickens in different states of estrogen simulation. The concentration of transcripts of structural and intervening DNA sequences was determined by hybridizing the newly synthesized [(3)H]RNA to filters containing cloned ovalbumin cDNA (pO...

The mouse oviduct is a complex, coiled tube which can be conveniently divided into three distinct regions: fimbria, ampulla, and isthmus. The funnel-like fimbriated tip, through which the ovum is transported after ovulation, is the most heavily ciliated portion of the oviduct. In the adult the cilia function to transport ova into the ostium of the fimbriated tip, and from there into the ampulla...

The control of Newcastle disease (ND) in South Africa has proved difficult since 2002 following the introduction of lineage 5d/VIId Newcastle disease virus (NDV) strain ("goose paramyxovirus" - GPMV) to which commercially available ND vaccines appeared less effective. Most of the ND infections, even in fully vaccinated hens were characterized consistently by a drop in egg production. In this st...

1. On Day 10 of the oestrous cycle in pigs, after laparotomy noradrenaline (NA), methoxamine (alpha 1-adrenomimetic, M), Prazosin (alpha 1-adrenolytic, Pr) in total doses of 4 mumol, and saline were infused (10 min) into the superficial layer of mesovarium on both sides of the ovarian pedicle vasculature, close to the ovary. 2. Blood flow in the ovarian artery, heart rate and progesterone (P4) ...

Pleiotrophin (PTN) is a developmentally-regulated growth factor which is widely distributed in various tissues and also detected in many kinds of carcinomas. However, little is known about the PTN gene in chickens. In the present study, we found chicken PTN to be highly conserved with respect to mammalian PTN genes (91-92.6%) and its mRNA was most abundant in brain, heart and oviduct. This stud...

BACKGROUND A promoter capable of driving high-level transgene expression in oviduct cells is important for developing transgenic chickens capable of producing therapeutic proteins, including monoclonal antibodies (mAbs), in the whites of laid eggs. Ovalbumin promoters can be used as oviduct-specific regulatory sequences in transgenic chickens, but their promoter activities are not high, accordi...