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F Claro

Publications and source records attributed to F Claro.

36 records · Page 2Linked to original sources
PubMed1990

SBR: a computer program to record and analyse sexual behavior in rodents.

SBR (Sexual Behavior Recorder) is a program designed to record and analyse data from research on the sexual behavior of rats and other animals with similar patterns of sexual behavior. SBR allows the user to record the characteristic events of both the male and female's sexual behavior: mounts, intromissions, ejaculations and lordosis. It also allows the user to record two other types of events, and analyse them in terms of frequency and duration, using two user-defined keys. The program allows the correction of any event erroneously recorded. SBR can simultaneously control observations made by one or two observers, and on one or two experiment boxes. In the case that two observers record from the same experiment box, the program calculates a set of measures of reliability between the observers. At the end of each observation, SBR conducts a descriptive analysis of the recorded events, including the parameters normally used in scientific literature on the subject, and writes this analysis to disk files. As well as the default calculation parameters, it is possible to calculate any other, or to use the program as a record of general purpose events using the file which contains all the recorded events in sequential order and the exact time at which they were recorded. SBR was written using the compiler Turbobasic 1.1 from Borland International Inc. (1987).

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PubMedDate not supplied

Karyotype identity of two subspecies of Eld's deer [Cervus eldi (Cervinae, Artiodactyla)] and its consequences for conservation.

Among the three subspecies generally recognized within the Eld's deer (Cervus eldi)--C. e. eldi, C. e. thamin, and C. e. siamensis--C. e. siamensis is considered to be particularly endangered following its disappearance from a major portion of its original range. The only captive breeding population of this subspecies is in the zoological parks at the Paris Museum of Natural History. Taking into account its low effective population size (Ne = 7) and the increasing levels of inbreeding, the continued breeding of this "micropopulation" in isolation from closely related subspecies and in particular from C. e. thamin, which is much more common in zoos as well as in the nature, is questioned. As an initial step in determining if crosses between these subspecies could be performed without risk of outbreeding depression due, in part, to gross differences in their karyotypes, a comparative chromosome banding analysis (RBG-bands) of C. e. siamensis and C. e. thamin was undertaken. No chromosomal differences were identified between the taxa at the level of resolution obtained. The study suggests that, at least from a karyotypic perspective, no obvious differences delimit the two subspecies, and hybridization between endangered C. e. siamensis and C. e. thamin is not likely to lead to impaired fertility in hybrid animals.

Animals↗
PubMedDate not supplied

The R- and G-banded karyotypes of the sable antelope (Hippotragus niger).

The karyotype of the sable antelope has been investigated by RBG- and GTG-banding techniques. Chromosome preparations were made from peripheral blood lymphocytes, and primary fibroblast cells were cultured from skin biopsies. The RBG-banded chromosomes were identified and classified according to the standard conventions used for cattle and goat. The diploid number of the sable antelope is 60. The autosomes are all acrocentric, the X is a large acrocentric, and the Y is a minute acrocentric. Comparison of banding patterns in sable antelope and cattle chromosomes reveals the existence of a high degree of homoeology except for at least one pair of autosomes and the X chromosome.

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