Ocular involvement in BDV-infected rabbits and primates.

A multifocal appearance and a preferential location in the posterior pole of the fundus in the human eye illustrate the clinical manifestation of some retinal pigment epitheliopathies. The etiology of these entities such as "acute pigment epithelitis" and "multifocal placoid pigment-epitheliopathy" as well as "Vogt-Koyanagi-Syndrome" is unknown, however, immune processes or virus infection has been claimed to be of pathogenetic importance. In Vogt-Koyanagi-Harada syndrome encephalitic lesions are detectable in the brain as well as in the retina.

[Sensitivity of immunoscintigraphy in malignant melanoma of the choroid].

Between June, 1988 and May, 1991 30 patients with clinically suspected malignant melanoma were examined in succession by means of immunoscintigraphy and the 225.28 S antibody (tagged with Tc-99m). Retrospectively, the results showed a sensitivity of over 70% by SPECT examination.

The effect of triacylglycerol chain length on food intake in domestic fowl.

Triacylglycerols of varying chain lengths were tested for their effects on food intake in fasted Single-Comb White Leghorn cockerels 9-12 weeks of age. Tributyrin, tricaprylin, triolein, or saline were intubated intragastrically or infused intrahepatically. All triacylglycerol administrations were in 10 ml volumes with 10 kcal being infused intrahepatically and 10 or 20 kcal being infused intragastrically.

[Histiocytosis X (eosinophilic granuloma) of the caruncle].

The lacrimal caruncle of an 11-year-old female patient developed a 2 mm x 3 mm-sized growth with the primary appearance of an abscess. The process did not regress under local antibiotic therapy and was excised. Histological examination revealed histiocytosis X (eosinophilic granuloma).

Protein and energy self-selection of turkey hens. Serum prolactin and luteinizing hormone concentrations.

1. The incidence of broodiness was four times as high among turkey hens fed a complete control diet than among hens allowed to self-select their diet from two different feed sources, one being relatively high in protein and the other relatively high in energy (i.e.

Irradiation of malignant eyelid melanoma with iodine 125 plaque.

We used contact irradiation with iodine 125 seeds to treat a large, exulcerative, nodular, amelanotic malignant eyelid melanoma with metastasis to the regional lymph nodes in an 80-year-old man. The procedure was similar to iodine 125 plaque irradiation of malignant choroidal melanoma; special equipment, however, was needed to protect the eye from radiation exposure. The response of the malignant eyelid melanoma to iodine 125 plaque irradiation was similar to that of malignant melanomas of the choroid.

Genetic influences on seasonal decline in the fertility of female turkeys.

Daughter-dam pairs of white, large-bodied, turkey breeder hens (108) were reared under similar husbandry conditions, and their egg production and fertility were monitored from the onset of lay for 6 mo. On a monthly basis, percentage fertility was compared by daughter-dam regressions to estimate heritabilities. The heritability estimates were 18.

Effects of various feeding regimens on reproduction in broiler-breeder males.

A study was conducted using commercial broiler-breeder males and females maintained in all-litter pens allowed to mate naturally. Using a separate feeding arrangement, males were given a diet containing either 12% or 14% protein. Body weights were maintained at either 90% or 100% of the recommended level.

Effects of oviductal trauma on humoral anti-sperm antibody production and fertility in turkey breeder hens.

Varying degrees of oviductal trauma were induced in turkey breeder hens during artificial insemination to determine the effects on humoral anti-sperm antibody production and fertility. Two experiments were completed. Mode of artificial insemination had no effect on fertility or the production of serum anti-sperm antibodies in either experiment.

The relationship of infertility to antibody production in the uterovaginal sperm storage tubules of turkey breeder hens.

Oviductal tissue from fertile and infertile turkey breeder hens was stained immuno-histochemically to test for the presence of antibody positive cells. Relatively infertile turkey hens (< 50% fertility) were found to have antibody positive cells within the uterovaginal sperm storage tubule epithelium, while fertile turkey hens (> 90% fertility) had no antibody positive cells. Data suggest a local immune response to spermatozoa exists in the uterovaginal sperm storage tubules of the turkey hen which may have a detrimental effect on fertility.

Ultrasonic turbulences at the phacoemulsification tip.

With small incision surgery, lens extraction can be performed in a closed system. However, phacoemulsification creates invisible turbulences in the anterior and posterior chambers of the eye. We recreated these turbulences in vitro and evaluated them in relation to the phacoemulsifier intensity setting.

Effects of feeder space on body weight uniformity of broiler breeder pullets during an alternate day feeding program.

The effect of feeder space on body weight uniformity of adolescent broiler breeder females during a feed restriction program was evaluated. From 2 to 20 wk of age, broiler breeder pullets were fed a starter/developer diet containing 16.0% protein and 2,944 kcal ME/kg feed.

Hyperplastic response of adipose tissue to caloric overconsumption in sexually mature chickens.

Two experiments were conducted to determine the hyperplastic response of adipose tissue from sexually mature chickens in response to caloric overconsumption. In the first experiment, birds were either force-fed or allowed to consume feed ad libitum, whereas in the second experiment, a feed-restriction regimen was also implemented. In both experiments feeding treatments were applied for 19 consecutive days, and a diet high in energy and low in protein was fed to all birds to promote lipogenesis.

The effect of ambient temperature on turkey embryonic development at oviposition.

Stage of embryonic development at oviposition was measured in turkey breeder hens maintained in relatively warm and cool environments. The premise was that variations in embryonic development at oviposition might account for the decreased hatchability associated with warm summer temperatures. No treatment effect was found, as judged by somite counts after 52 h of incubation.

Ionostatic control of food intake in the domestic fowl.

It has been suggested that there is ionostatic control of food intake in which calcium, acting in the hypothalamus, alters food intake. This study was conducted to determine the effects of intracerebroventricular (ICV) injections of calcium on food and water intake in both broiler and Leghorn cockerels. The ICV injection of 50, 100, or 150 mM CaCl2 had no significant affect on food or water intake in Leghorn cockerels.

Food intake response of genetically selected high and low-weight line cockerels to plasma infusions from fasted fowl.

Two experiments were conducted to determine if food intake of free-feeding chickens could be affected by infusions of plasma from fasted fowl. In the first experiment, chickens from two lines genetically selected for high or low body weight were infused intrahepatically with plasma collected from free-fed and fasted individuals from each line. Food intake of low-weight line birds was increased significantly by infusions of plasma from fasted high-weight line chickens when compared to food intake of low-weight line birds receiving plasma from free-fed low-weight line chickens.

Ovum formation and multiple ovulation in lines of white Plymouth Rocks and their crosses.

The production of double-yolked eggs and the duration of the rapid growth phase of yolks were measured in parental lines of White Plymouth Rock pullets and their crosses over 30 d, commencing with the day of first egg. Significant differences were found between mating combinations in the incidence of multiple-yolked eggs, but not in the period of rapid yolk growth. Heterosis and recombination effects for multiple ovulation were respectively -9% and -66% of the mean, while the corresponding values for the period required for rapid yolk growth were -1% and -5%.

Tryptophan's influence on feeding and body temperature in the fowl.

The neurotransmitter, serotonin, has been implicated in both food intake and body temperature regulation. In this experiment, the effect of tryptophan, the amino acid precursor of serotonin, on food consumption and rectal temperature in the fowl was determined. Single Comb White Leghorn cockerels were intubated with a tryptophan solution or distilled water.

Avian cerebrospinal fluid: repeated collection and testing for a possible role in food intake regulation.

The objective of this study was to determine if a factor(s) involved in the regulation of food intake exists in the cerebrospinal fluid (CSF) of the domestic fowl. A technique was developed that allows blood-free CSF samples to be collected repeatedly from the cisterna magna for up to 6 weeks. Using this technique, CSF was collected from free-feeding and 24-hour fasted broiler cockerels and injected into the lateral cerebral ventricle of 8-week old Leghorn cockerels and 4-week old broiler cockerels.

Intraperitoneal injections of tryptophan inhibit food intake in the fowl.

The effects of intraperitoneal injections of tryptophan on food intake in the chicken were examined. Four levels of tryptophan (12.5, 25, 50, 100 mg), and a saline control were tested in birds that were ad libitum fed or fasted 24 hr.

Intraduodenal glucose infusions do not affect food intake in the fowl.

A series of experiments was performed to examine the role of the duodenum in food intake regulation in the fowl. In each of the experiments, birds were surgically fitted with intraduodenal cannulae. In Experiments 1 to 6, Single Comb White Leghorn (SCWL) or Rock Cornish cockerels were infused with isosmotic glucose, urea, or saline solutions.

Alteration of food intake following intracerebroventricular administration of plasma from free-feeding domestic fowl.

Four experiments were conducted to investigate the presence of a factor in the plasma of the domestic fowl that alters food intake when injected into the lateral cerebral ventricle. Plasma collected from free-feeding and 24-hour fasted birds was lyophilized and reconstituted to 2, 4, or 5 times normal concentration. Stainless steel guide cannulae were stereotaxically implanted into the lateral cerebral ventricle of 8-week-old Single Comb White Leghorn cockerels.

Reduced food intake following intracerebroventricular administration of a low molecular weight fraction of plasma from free-feeding fowl.

Plasma was collected from free-feeding Leghorn cockerels and partitioned by gel filtration into fractions of different molecular weight ranges. The individual fractions were then lyophilized and reconstituted to four times the original concentration. The plasma was administered to 10-week-old Leghorn cockerels via a stainless steel guide cannula, stereotaxically implanted into the lateral cerebral ventricle.

Selection for growth alters the feeding response to injections of biogenic amines.

Two experiments were conducted to determine if selection for growth altered the response to intracerebroventricular (ICV) injections of methoxamine and 5-hydroxytryptamine (5-HT). Lines of chickens divergently selected over 25 generations for 8-week body weight were used. The ICV injection of methoxamine into fully fed birds significantly increased food intake in the high-weight line but had no effect on food intake in the low-weight line.

Food intake in the domestic fowl: effect of intrahepatic lipid and amino acid infusions.

Five experiments were conducted to determine the effect of hepatic and jugular infusions of amino acid and lipid solutions on short-term food intake of cockerels. Neither jugular nor hepatic infusions of amino acids had any effect on food intake of Single-Comb White Leghorn (SCWL) cockerels. Lipid infusions had no effect on SCWL cockerels when administered intrajugularly but decreased food intake significantly when infused intrahepatically.