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| Registros recuperados: 4.174 | |
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| Electrophoretic analyses of peptidase-B were carried out on red cell hemolysates from Holstein, Mantiqueira and Gyr cattle, using cornstarch, known in Brazil as Penetrose-30. We describe a new peptidase-B allele, denoted Pep-B1, in Mantiqueira cattle, belonging to the Bos taurus group, which are the result of a cross of native cattle of Portuguese origin introduced in Brazil during colonial times (16th century) with Holstein and Caracu cattle. The genetic control of peptidase-B was determined by typing parents and progeny segregating for all three alleles, confirming that peptidase B is controlled by a single autosomal locus with three codominant alleles, denoted Pep-B1, Pep-B2 and Pep-B3 The use of the citrate-phosphate buffer system, at pH 5.9, on 14%... |
| Tipo: Info:eu-repo/semantics/other |
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| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551997000100002 |
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| Knapp, L.W.; Imamura, H.. |
| A new bembrid, Bembras adenensis, is described on the basis of specimens collected from the Gulf of Aden, western Indian Ocean. This species is easilydistinguished from B. japonica, the only known congener of the genus, by thefollowing combination of characters: larger orbital diameter, longer head length,pectoral-fin with a small black blotch near tip of upper rays, 3 gill rakers on upper gillarch, 19 pectoral-fin rays, and 15 anal-fin rays (vs. smaller orbital diameter, shorter head length, pectoral-fin with several small spots forming irregular bands, 2 gill rakerson upper gill arch, usually 17 pectoral-fin rays, and 14 anal-fin rays in B. japonica). |
| Tipo: Journal Contribution |
Palavras-chave: Fish species. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/955 |
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| Hendrickx, M.E.; Landa-Jaime, V.. |
| A new species of Parthenopidae from the East Pacific belonging to the genus <i>Parthenope</i> Weber is described and illustrated. <i>Parthenope johngarthi</i> n. sp. was collected along the west coast of Mexico, off the coast of Jalisco and Colima. <i>Parthenope johngarthi</i> is readily distinguished from species of other genera of Parthenopidae from the East Pacific by the shape of the tuberculate carapace, the relative lenght and shape of the chelipeds, and the shape and relative size of segments of walking legs. It is closely related to <i>P. exilipes</i> (Rathbun, 1893) but differs from the latter by its slender and almost smooth walking legs, its slender and less densely tuberculate chelipeds, and by... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1997 |
URL: http://www.vliz.be/imisdocs/publications/303567.pdf |
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| Featherstone, Allen M.; Langemeier, Michael R.; Ismet, Mohammad. |
| Competitive pressures in the cow-calf sector increased in 1995 because of a decline of 27% in calf prices. Technical, allocative, and scale efficiency measures were used to examine the competitiveness of a sample of Kansas beef cow farms. On average, the farms were 78% technically efficient, 81% allocatively efficient, and 95% scale efficient. Enterprise profitability was correlated positively with the efficiency measures. Inefficiency was related to herd size and degree of specialization. Producers should focus on using capital, feed, and labor more efficiently rather that increasing their size. Increased concentration of the cow-calf sector will not result in large cost savings given the current technology. |
| Tipo: Journal Article |
Palavras-chave: Beef cow; Industry structure; Nonparametric efficiency; Productivity Analysis. |
| Ano: 1997 |
URL: http://purl.umn.edu/15547 |
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| Hudson, Darren; Ethridge, Don E.; Segarra, Eduardo. |
| Theory and analysis of price information and its importance have typically assumed that the information is correct. Additionally, most analyses have centered on general price information assuming homogeneous products. This paper examines the implications of incorrect price information on the basis of quality, with evidence from prior research on cotton prices used as an illustration. Results of a conceptual analysis indicate that quality has direct implications on the production and marketing process. Incorrect information on prices of different quality leads to distortions in the market and market inefficiency. |
| Tipo: Report |
Palavras-chave: Agricultural and Food Policy; Demand and Price Analysis. |
| Ano: 1997 |
URL: http://purl.umn.edu/53174 |
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| Nephrogenic diabetes insipidus (NDI) is a rare disease characterized by renal inability to respond properly to arginine vasopressin due to mutations in the vasopressin type 2 receptor (V2(R)) gene in affected kindreds. In most kindreds thus far reported, the mode of inheritance follows an X chromosome-linked recessive pattern although autosomal-dominant and autosomal-recessive modes of inheritance have also been described. Studies demonstrating mutations in the V2(R) gene in affected kindreds that modify the receptor structure, resulting in a dys- or nonfunctional receptor have been described, but phenotypically indistinguishable NDI patients with a structurally normal V2(R) gene have also been reported. In the present study, we analyzed exon 3 of the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Vasopressin; Receptor; Polymorphism; Diabetes insipidus; Receptor gene polymorphism. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000400002 |
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| Registros recuperados: 4.174 | |
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