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Biomedical subjects

J C Hindson

Publications and source records attributed to J C Hindson.

At least 19 recordsLinked to original sources
PubMed1989

Bovine iritis.

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Animals↗
PubMed1978

Quantification of obstetric traction.

Measurements of factors involved in the degree of traction exerted during obstetric cases were carried out. Bovine material force was approximately 150 lbs. Maximum manual effort would be approximately four times this and mechanical traction would be at least 50 per cent higher again. A workable maternal fetal ratio was established for use in cases of fetal oversize. Possible quantification of other factors is also discussed.

Animals↗
PubMed1976

Retention of the fetal membranes in cattle.

An investigation of the possible significance of 'stress' as a factor in the retention of bovine fetal membranes has been carried out, together with the investigation as to the possible variation of progesterone levels at parturition, as a cause of retention. No evidence of abnormal progesterone levels has been established, but from the evidence it is concluded that retention may well be yet another example of production disease.

Animals↗
PubMed1975

An assessment of a method of manual pregnancy diagnosis in the ewe.

The recto-abdominal palpation method of ovine pregnancy diagnosis described by Hulet (1972) was carried out on 167 ewes in three flocks. The results showed a virtual 100 per cent accuracy of diagnosis between pregnancy and non-pregnancy and approximately 70 per cent overall accuracy in differentiating single from multiple pregnancies. At least 34 ewes aborted and five died. It was concluded that the method as carried out was neither safe nor accurate enough to justify any savings consequent upon more efficient food usage.

Abdomen↗
PubMed1968

Parturient pressures in the ovine uterus.

1. Intra-uterine pressure changes were followed by radio-telemetry in ten ewes carrying one lamb in each horn. One endo-radiosonde was implanted in each horn some 2-3 weeks before term and the pressure changes in the two horns were recorded simultaneously thereafter.2. The first isolated pressure waves which could be ascribed to myometrial activity were detected about 12 hr before delivery. Once pressure waves had become established, it was found that one horn developed waves which were about double the amplitude of those in the other horn and of greater duration. Thus one horn became dominant and the lamb occupying this horn was the first to be presented at the cervix. There appeared to be no difference between the two horns in the frequency of the waves.3. Digital examination of the os led to a phase of increased pressure waves which was considered to be due to oxytocin release.4. These findings are discussed and it is suggested that some local factor maintains the dominance of one horn and that this factor may be related to the local influence of the placenta.

Animals↗