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Viktors Veliks - One of the best experts on this subject based on the ideXlab platform.
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Influence of short-term applying static magnetic field on laboratory animal physiological function depending on direction of magnetic induction vector
Latvijas Universitāte, 2007Co-Authors: Viktors VeliksAbstract:Anotācija Arvien plašāk sadzīvē ienāk pastāvīgie magnēti – ar tiem saskaramies skaļruņos, ūdens attīrīšanas ierīcēs, visai plašs ir magnētisko aproču, auskaru un citu “ārstniecisko” izstrādājumu klāsts. Medicīnas praksē pastāvīgu magnētisko lauku (PML) izmanto ārstniecībā. Literatūrā sastopama informācija par PML izmantošanu epilepsijas ārstēšanā, brūču un kaulu lūzumu ātrākai sadzīšanai. Ir izvirzīta hipotēze, ka viens no PML parametriem, no kura atkarīga gan lauka efektivitāte, gan fizioloģiskās reakcijas kvalitatīvās izpausmes, ir magnētiskā lauka vektora orientācija pret dzīvnieka ķermeņa un smadzeņu anatomiskām struktūrām. Elektrofizioloģiskos un etoloģiskos eksperimentos tika izmantoti: “Wistar” populācijas žurku tēviņi (Rattus norvegicus), nelīnijas lauku peļu (Lasiopodomys brandtii) tēviņi un Šinšillas trušu (Oryctolagus cuniculus) tēviņi. Dzīvnieku anestēzijā izmantoja uretānu, ksilazīna un ketamīna maisījumu un nembutālu. Eksperimentos tika izmantoti samārija un kobalta sakausējuma magnēti; to izmērs bija 20x20x10 mm, inducētā magnētiskā lauka intensitāte 1mm attālumā no virsmas ir 250 mT. Trušu elektroencefalogrammas un žurku elektrogrammu reģistrācijai izmantoja biosignālu pastiprinātāju. Mākslīgs vidējas intensitātes īslaicīgi aplicēts pastāvīgais magnētiskais lauks (viīPML), kas aplicēts laboratorijas dzīvnieka ķermenim vai galvai, izraisa plaša spektra tūlītējas funkcionālas izmaiņas visā organismā, t.sk., ietekmē monoamīnu koncentrāciju smadzenēs, smadzeņu vadības un psihiskās funkcijas, veģetatīvo funkciju regulācijas mehānismus un dzīvnieku uzvedību. Tika apstiprināta hipotēze, ka būtisks viīPML parametrs, no kura atkarīga gan lauka efektivitāte, gan fizioloģiskās reakcijas kvalitatīvās izpausmes, ir magnētiskā lauka vektora orientācija pret dzīvnieka ķermeņa un smadzeņu anatomiskām struktūrām. Viena no viīPML ietekmes uz smadzenēm izpausmēm ir psihosomatisko procesu kavēšana, par ko liecina somatosensoro izsaukto potenciālu latento periodu pagarināšanās, elektrokortikogrammas zemas frekvences viļņu amplitūdas palielināšanās, instinktīvo uzvedības reakciju gausināšanās.Abstracts Static magnetic fields are of frequent occurrence on the Earth. The Earth by itself is a forceful magnet, which has influence on all processes happening on it. In daily needs static magnets become more and more wide-spread – they can be found in loud-speakers, water-purification systems, very popular are magnetic bracelets, earrings and other “medicative” ware exposure. In medicine praxis static magnetic field (SMF) is used in cure. In literature it is possible to find information about SMF use in epilepsy treatment, for faster healing of injuries and bone fractures. Author’s hypothesis is that important mean intensity short-time applied static magnetic field (misSMF) parameter, on which depends field efficiency as well as physiological reaction qualitative utterance, is the magnetic field vector orientation against animal’s body and brain anatomical structures. In electrophysiological and ethological experiments “Wistar” population rat males (Rattus norvegicus), outbreed field mouse (Lasiopodomys brandtii) males and Chinchilla Rabbit (Oryctolagus cuniculus) males were used. For anaesthesia purpose urethane and ketamine in combination with xylazine and also nembutal were used. Biophysical amplifier was used for electrogram registration. Artificial medium intensity short-term static magnetic field misSMF applied onto the body or head of a laboratory animal evokes instant functional changes of wide spectrum in the whole organism, int.al., influences monoamine concentration in the brain, brain control and mental functions, regulation mechanisms of vegetative functions and animal behaviour. Hypothesis is confirmed: significant misSMF parameter on which both field efficiency and qualitative expressions of physiological reactions depend is magnetic field vector orientation against animal body and brain anatomical structures. One of the expressions of misSMF influence on the brain is the retardation of psychosomatic processes, testified by the extension of the latent periods of somatosensory potentials, increase of low frequency wave range of electrocorticograms, slowing down of instinctive behaviour reactions
Veliks Viktors - One of the best experts on this subject based on the ideXlab platform.
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Influence of short-term applying static magnetic field on laboratory animal physiological function depending on direction of magnetic induction vector
Latvijas Universitāte, 2007Co-Authors: Veliks ViktorsAbstract:Elektroniskā versija nesatur pielikumusAnotācija Arvien plašāk sadzīvē ienāk pastāvīgie magnēti – ar tiem saskaramies skaļruņos, ūdens attīrīšanas ierīcēs, visai plašs ir magnētisko aproču, auskaru un citu “ārstniecisko” izstrādājumu klāsts. Medicīnas praksē pastāvīgu magnētisko lauku (PML) izmanto ārstniecībā. Literatūrā sastopama informācija par PML izmantošanu epilepsijas ārstēšanā, brūču un kaulu lūzumu ātrākai sadzīšanai. Ir izvirzīta hipotēze, ka viens no PML parametriem, no kura atkarīga gan lauka efektivitāte, gan fizioloģiskās reakcijas kvalitatīvās izpausmes, ir magnētiskā lauka vektora orientācija pret dzīvnieka ķermeņa un smadzeņu anatomiskām struktūrām. Elektrofizioloģiskos un etoloģiskos eksperimentos tika izmantoti: “Wistar” populācijas žurku tēviņi (Rattus norvegicus), nelīnijas lauku peļu (Lasiopodomys brandtii) tēviņi un Šinšillas trušu (Oryctolagus cuniculus) tēviņi. Dzīvnieku anestēzijā izmantoja uretānu, ksilazīna un ketamīna maisījumu un nembutālu. Eksperimentos tika izmantoti samārija un kobalta sakausējuma magnēti; to izmērs bija 20x20x10 mm, inducētā magnētiskā lauka intensitāte 1mm attālumā no virsmas ir 250 mT. Trušu elektroencefalogrammas un žurku elektrogrammu reģistrācijai izmantoja biosignālu pastiprinātāju. Mākslīgs vidējas intensitātes īslaicīgi aplicēts pastāvīgais magnētiskais lauks (viīPML), kas aplicēts laboratorijas dzīvnieka ķermenim vai galvai, izraisa plaša spektra tūlītējas funkcionālas izmaiņas visā organismā, t.sk., ietekmē monoamīnu koncentrāciju smadzenēs, smadzeņu vadības un psihiskās funkcijas, veģetatīvo funkciju regulācijas mehānismus un dzīvnieku uzvedību. Tika apstiprināta hipotēze, ka būtisks viīPML parametrs, no kura atkarīga gan lauka efektivitāte, gan fizioloģiskās reakcijas kvalitatīvās izpausmes, ir magnētiskā lauka vektora orientācija pret dzīvnieka ķermeņa un smadzeņu anatomiskām struktūrām. Viena no viīPML ietekmes uz smadzenēm izpausmēm ir psihosomatisko procesu kavēšana, par ko liecina somatosensoro izsaukto potenciālu latento periodu pagarināšanās, elektrokortikogrammas zemas frekvences viļņu amplitūdas palielināšanās, instinktīvo uzvedības reakciju gausināšanās.Abstracts Static magnetic fields are of frequent occurrence on the Earth. The Earth by itself is a forceful magnet, which has influence on all processes happening on it. In daily needs static magnets become more and more wide-spread – they can be found in loud-speakers, water-purification systems, very popular are magnetic bracelets, earrings and other “medicative” ware exposure. In medicine praxis static magnetic field (SMF) is used in cure. In literature it is possible to find information about SMF use in epilepsy treatment, for faster healing of injuries and bone fractures. Author’s hypothesis is that important mean intensity short-time applied static magnetic field (misSMF) parameter, on which depends field efficiency as well as physiological reaction qualitative utterance, is the magnetic field vector orientation against animal’s body and brain anatomical structures. In electrophysiological and ethological experiments “Wistar” population rat males (Rattus norvegicus), outbreed field mouse (Lasiopodomys brandtii) males and Chinchilla Rabbit (Oryctolagus cuniculus) males were used. For anaesthesia purpose urethane and ketamine in combination with xylazine and also nembutal were used. Biophysical amplifier was used for electrogram registration. Artificial medium intensity short-term static magnetic field misSMF applied onto the body or head of a laboratory animal evokes instant functional changes of wide spectrum in the whole organism, int.al., influences monoamine concentration in the brain, brain control and mental functions, regulation mechanisms of vegetative functions and animal behaviour. Hypothesis is confirmed: significant misSMF parameter on which both field efficiency and qualitative expressions of physiological reactions depend is magnetic field vector orientation against animal body and brain anatomical structures. One of the expressions of misSMF influence on the brain is the retardation of psychosomatic processes, testified by the extension of the latent periods of somatosensory potentials, increase of low frequency wave range of electrocorticograms, slowing down of instinctive behaviour reactions
Olajide Olowofeso - One of the best experts on this subject based on the ideXlab platform.
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Interrelationship between Body Weight and Body Size Parameters in Chinchilla and New Zealand White Rabbit Genotypes in
2016Co-Authors: Olanrewaju T. Olufowobi, Olajide OlowofesoAbstract:Traits of economic importance in Rabbit when measured provide attributes that may be used as selection criteria by livestock breeders. This study was carried out to determine the interrelationship between body weight and body size parameters and to develop linear equations for predicting body weight using some body size parameters in two Rabbit genotypes. Chinchilla and New Zealand White Rabbit genotypes were selected for this study, with each breed having 20 does and 4 bucks making a total of 48 Rabbits (precisely breeders). The animals were intensively managed and body weight, body length, ear length, heart girth, head length and tail length were measured on weekly basis. Body size parameters were correlated and regressed with body weight of each genotype and results were compared. At the end of the twelve-week study period, body weights were 2.074±0.280 kg and 2.130±0.240 kg for Chinchilla and New Zealand White Rabbit genotypes, respectively. Body size parameters considered were positively correlated with body weight for both genotypes. Ear length, heart girth and head length only were significantly (P < 0.01) correlated with body weight for Chinchilla, while body size parameters were found to be significantly (P < 0.01) correlated with body weight for New Zealand White Rabbit. Linear equations were developed for predicting the body weight from these body size parameters in each genotype. We observed that heart girth proved to be the best predictor for body weight in New Zealand White and Chinchilla Rabbit genotypes, having a coefficient of determination (r) of 0.529 and 0.547, respectively
Olowofeso Olajide - One of the best experts on this subject based on the ideXlab platform.
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Interrelationship between Body Weight and Body Size Parameters in Chinchilla and New Zealand White Rabbit Genotypes in Abeokuta, Nigeria
Journal of Biology Agriculture and Healthcare, 2015Co-Authors: Olufowobi, Olanrewaju T., Olowofeso OlajideAbstract:Traits of economic importance in Rabbit when measured provide attributes that may be used as selection criteria by livestock breeders. This study was carried out to determine the interrelationship between body weight and body size parameters and to develop linear equations for predicting body weight using some body size parameters in two Rabbit genotypes. Chinchilla and New Zealand White Rabbit genotypes were selected for this study, with each breed having 20 does and 4 bucks making a total of 48 Rabbits (precisely breeders). The animals were intensively managed and body weight, body length, ear length, heart girth, head length and tail length were measured on weekly basis. Body size parameters were correlated and regressed with body weight of each genotype and results were compared. At the end of the twelve-week study period, body weights were 2.074±0.280 kg and 2.130±0.240 kg for Chinchilla and New Zealand White Rabbit genotypes, respectively. Body size parameters considered were positively correlated with body weight for both genotypes. Ear length, heart girth and head length only were significantly (P < 0.01) correlated with body weight for Chinchilla, while body size parameters were found to be significantly (P < 0.01) correlated with body weight for New Zealand White Rabbit. Linear equations were developed for predicting the body weight from these body size parameters in each genotype. We observed that heart girth proved to be the best predictor for body weight in New Zealand White and Chinchilla Rabbit genotypes, having a coefficient of determination (r²) of 0.529 and 0.547, respectively. Keywords: Body dimensions, Breeds of Rabbit, Bucks, Does, Prediction, Selection criteri
Olanrewaju T. Olufowobi - One of the best experts on this subject based on the ideXlab platform.
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Interrelationship between Body Weight and Body Size Parameters in Chinchilla and New Zealand White Rabbit Genotypes in
2016Co-Authors: Olanrewaju T. Olufowobi, Olajide OlowofesoAbstract:Traits of economic importance in Rabbit when measured provide attributes that may be used as selection criteria by livestock breeders. This study was carried out to determine the interrelationship between body weight and body size parameters and to develop linear equations for predicting body weight using some body size parameters in two Rabbit genotypes. Chinchilla and New Zealand White Rabbit genotypes were selected for this study, with each breed having 20 does and 4 bucks making a total of 48 Rabbits (precisely breeders). The animals were intensively managed and body weight, body length, ear length, heart girth, head length and tail length were measured on weekly basis. Body size parameters were correlated and regressed with body weight of each genotype and results were compared. At the end of the twelve-week study period, body weights were 2.074±0.280 kg and 2.130±0.240 kg for Chinchilla and New Zealand White Rabbit genotypes, respectively. Body size parameters considered were positively correlated with body weight for both genotypes. Ear length, heart girth and head length only were significantly (P < 0.01) correlated with body weight for Chinchilla, while body size parameters were found to be significantly (P < 0.01) correlated with body weight for New Zealand White Rabbit. Linear equations were developed for predicting the body weight from these body size parameters in each genotype. We observed that heart girth proved to be the best predictor for body weight in New Zealand White and Chinchilla Rabbit genotypes, having a coefficient of determination (r) of 0.529 and 0.547, respectively