Osmotic Flow During Ventriculocisternal Perfusion of Vitamin A-Deficient Calves
نویسندگان
چکیده
منابع مشابه
Effect of Parenteral Administration of Vitamin A in Dairy Cattle During Dry Period, on Vitamin A Status of Neonatal Calves
The present study has been conducted to evaluate the effect of intramuscular administration of vitamin A during dry period in pregnant dairy cows which have already received it in their daily ration on vitamin A status of neonatal calves.Single intramuscular injection of 2000000 IU vitamin A was carried in 10 dairy cows at 7 months of pregnancy (group 1) and in another 10 dairy cows at 8 months...
متن کاملStudy of central regulation of intraocular pressure using ventriculocisternal perfusion.
The ability of hypoosmotic solution, prostaglandin E1 (PGE1) and clonidine to influence intraocular pressure (IOP) by a central mechanism was studied using the technique of ventriculocisternal perfusion in conscious rabbits. IOP remained unchanged during the perfusion of 150 mOsm artificial cerebrospinal fluid. IOP rapidly increased by 15 mmHg during the perfusion of PGE1 at the dose of 1 or 3 ...
متن کاملEffect of Parenteral Administration of Vitamin A in Dairy Cattle During Dry Period, on Vitamin A Status of Neonatal Calves
The present study has been conducted to evaluate the effect of intramuscular administration of vitamin A during dry period in pregnant dairy cows which have already received it in their daily ration on vitamin A status of neonatal calves. Single intramuscular injection of 2000000 IU vitamin A was carried in 10 dairy cows at 7 months of pregnancy (group 1) and in another 10 dairy cows at 8 month...
متن کاملPotential error in ventriculocisternal perfusion method for determination of cerebrospinal fluid formation rate in cats.
The cerebrospinal fluid (CSF) formation rate (Vf) has been extensively studied by the ventriculocisternal perfusion, a method still regarded as the most precise one. This method as well as the equation for the calculation of the CSF formation rate (Vf) was established by Heisey et al on indicator dilution in perfusate. They assumed that the dilution of the indicator substance in perfusion is a ...
متن کاملSources of error in measuring cerebrospinal fluid formation by ventriculocisternal perfusion.
Ventriculocisternal perfusion is regarded as a precise method of measuring the rate of formation of cerebrospinal fluid (CSF) but it possesses inherent potential sources of error. Using the technique to measure CSF formation rate in the rhesus monkey, we have observed rate changes when none were expected. Most puzzling has been the steady decline of CSF formation rate at 4 percent each hour dur...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1968
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(68)87277-7