Xiphophorus helleri
Resolution of agonistic conflicts in dyads of acquainted green swordtails (Xiphophorus helleri, Pisces, Poeciliidae): A game with perfect information
... Conflict resolution of familiar opponents was compared to that of unfamiliar ones in Xiphophorus helleri males. Under the Familiar condition, the two males which met had settled a contest against each other ...
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EFFECT OF ADDITION SPIRULINA FLOUR ON FEED FOR THE COLOR INTENSITY OF SWORDTAIL FISH (XIPHOPHORUS HELLERI)
... One type of ornamental fish is swordtail fish (Xiphophorus helleri). This fish has an interesting color characteristic, the color of the swordtail fish is very influential on its economic value. Beautiful ...
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Investigation of botanical additives for growth of xiphophorus helleri (heckel.) and it’s gut autochthonous bacterial flora
... and Catla catla (Mohanty et al., 1996), respectively. The results of Lara-Flores et al. (2003) also indicated that the Oreochromis niloticus fry subjected to diets with a probiotic supplement exhibited greater growth ...
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Social organization of small heterosexual groups of Green swordtails (Xiphophorus helleri, Pisces, Poeciliidae) under conditions of captivity
... In summary, the monarchistic, haremic and linear hierarchical schemes are, together with spatial configurations, subsets of the structure of the sociosystem of small populations of Xiphophorus helleri kept ...
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Inversion of initial dominance relationships following the interchange of roles of resident and intruder within pairs of male swordtail fish (Xiphophorus helleri)
... Two sets of individual properties appear to determine dominance outcome in dyadic encounters of male Green swordtail fish (Xiphophorus helleri): A first set would comprise properties which are static or ...
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Conflict outcome in male green swordtail fish dyads (Xiphophorus helleri): Interaction of body size, prior dominance/subordination experience and prior residency
... (Xiphophorus helleri) for individuals of equivalent size that had been put in isolation for 18 hours beforehand (Zayan, 1975a, b, c; Beaugrand & Zayan, 1985; Beaugrand & Beaugrand, ...
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EFFECT OF USING LOW TEMPERATURE IN THE BEGINNING OF TRANS-PORTATION WITH CLOSED SYSTEM OF SWORDTAIL (XIPHOPHORUS HELLERI).
... (Xiphophorus helleri) size ± 3 cm with a density of 20 ...(X. helleri) is a temperature of 20 o C and a long transportation time of 5 hours, obtained survival of ...
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Outcome of dyadic conflict in male green swordtail fish, Xiphophorus helleri: effects of body size and prior dominance
... Beaugrand & Zayan (1985) combined several of these experiential factors in a predictive model of dyadic conflict outcome. They showed that when size differences between opponents are limited, experiential factors ...
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The role of observation and of individual differences in in the determination of rank order in triads of male green swordtail fish (Xiphophorus helleri)
... convinced for theoretical and empirical reasons that individual differences could not account for hierarchy formation in animals (e.g. Chase, 1974), Chase (1982a, b) did not systematically vary initial individual ...
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Distinguishing kinds of prior dominance and subordination experiences in male Green swordtail fish (Xiphophorus helleri).
... Three size measurements were taken of each fish: (1) its total length, from the snout to the end of the caudal fin; (2) its flank height, from the base of the dorsal fin to the origin of the gonopodium; and (3) its ...
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The Relation Between the Development of the Secondary Sex Characters and the Structure of the Testis in the Teleost Xiphophorus Helleri Heckel
... Before giving a description of the testes of male specimens of Xiphophorus, in which the secondary sex characters have not yet developed, or in which these sex characters are in the firs[r] ...
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CARROT STARCH ADDITION EFFECT ON ARTIFICIAL FEED TOWARDS COLOR ENHANCEMENT OF SWORDTAIL FISH (XIPHOPHORUS HELLERI)
... The results concluded that the addition of 10% carrot starch is the best treatment, resulting in 6.78 color brightness value enhancement on the tail and 7 color brightn[r] ...
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Relation between dominance rank, prior agonistic intensity and subsequent aggressive levels in winners and losers of dyads of male Green swordtail fish (Xiphophorus helleri)
... in Xiphophorus (Beaugrand & Zayan, ...two Xiphophorus males which have been isolated for 18-24h are as protracted and aggressive as that between two prior ...
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DES DIFFÉRENCES LIÉES AU SEXE DANS LES STRATÉGIES DE RÉPARTITION SPATIALE CHEZ DES POISSONS PORTE-ÉPÉE (XIPHOPHORUS HELLERi) MAINTENUS EN CAPTIVITÉ
... Trois conditions expérimentales, semblables à celles décrites pour la première expérience furent également appliquées, à un détail près: dans la première condition, quatre mâles fure[r] ...
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An experimental model of aggressive dominance in Xiphophorus helleri (Pisces, Poeciliidae)
... Conceptually speaking, our model implied more stochastic than purely causal determination of dominance. In regard to empirical testing, the model was highly deterministic, since: -all encounters were systematically ...
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Prior residency and the stability of dominance relationships in pairs of green swordtail fish Xiphophorus helleri (Pisces, Peociliidae)
... The present research well illustrates that the initial dyadic dominance-subordination relationships between X. helleri males are temporally stable. As we are showing, these relationships can be maintained for 20 ...
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THE INHERITANCE OF THE CRESCENT AND TWIN SPOT MARKING IN XIPHOPHORUS HELLERI
... The non-crescent female in table 15 must have the genotype ccPp, since the ratio obtained is 1 crescent, 1 twin spot to 2 non-crescent when mated with this one male those[r] ...
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APPLICATION OF DIETARY PROBIOTIC (VIBACT) LEVEL ON REPRODUCTIVE PERFORMANCE IN ICE BLUE CICHLID (MAYLANDIA GRESHAKEI)
... Hernandez et al., [5] analyzed the effects of the commercial probiotic, Lactobacillus casei on the growth and protein content of skin mucus and stress resistance of juveniles of the Porthole live bearer Poecilia gracilis ...
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The Macromelanophore Locus and the Melanoma Oncogene Xmrk Are Separate Genetic Entities in the Genome of Xiphophorus
... Feinberg, A. P., and B. Vogelstein, 1983 A technique for radiola- Woolcock, B. W., B. M. Schmidt, K. D. Kallman and J. R. Vielkind, beling DNA restriction endonuclease fragments to high specific 1994 Differences in ...
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Genetic linkage map of fishes of the genus Xiphophorus (Teleostei: Poeciliidae).
... derived from intra- and interspecific genetic crosses of fishes of t h e genus Xzphophorus (Poeciliidae) resulted in the identification of 17 multipoint linkage groups c[r] ...
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