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On the basis of the Robertson and Lemus (1949) fonnula to compute the coefficient of heritability of discontinous traits we made the application program h2 for IBM compatible personnal computers, written in CLIPPER and compiled with PKLINK86plus, that may compute the coefficient of one trait at a time) in a pedigreed population. This program was designed to improve geneticist's work in the cas ...

SUBJECT: calculation; genetica; genetics; heritabilite; heredabilidad

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

The protein as strain of M gallisepticum utilized in a vaccine against this microorganism were characterized by polyacrylamide gel electrophoresis. The antigenic proteins of the strain were determined by Western blot against a hyperimmune serwn of rabbit and serwn of animals vaccinated with two oily bacterins. In the electrophoresis bands of proteins were found with molecular weight (MW) in a ...

SUBJECT: micoplasma gallicepticum; electrophorese; vacunacion; inmunologia; electroforesis

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

With the purpose of knowing the dynamic of oviposition of geese during the period Nov-Abril, we registered the egg-laying of 1646 breeders of the Magyar breed and 1826 of the landie breed which betwen the first and second cycles of egg-laying. Management and nourishing were acomplished according to standing standing tecnhical requirements. Eggs were collectted with continuityin nest and pastur ...

SUBJECT: manejo, gansos; oviposition; oviposicion; ponte

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

Se realizó una investigación con vistas a determinar la variabilidad nutritiva de las harinas de maíz , trigo y soya que se importan para laalimentación de las aves. Se compararon los resultados con la tabla de compocición bromatológica que se utiliza en la elaboración de los piensos del Combinado Avícola Nacional (CAN). Los valores obtenidos de materia seca para el maíz trigo y soya fueron se ...

SUBJECT: alimentacion; soja; alimentation; trigo; comportamiento

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

Se realizó una investigación con vistas a determinar la variabilidad nutritiva de las harinas de maíz , trigo y soya que se importan para laalimentación de las aves. Se compararon los resultados con la tabla de compocición bromatológica que se utiliza en la elaboración de los piensos del Combinado Avícola Nacional (CAN). Los valores obtenidos de materia seca para el maíz trigo y soya fueron se ...

SUBJECT: alimentacion; soja; alimentation; trigo; comportamiento

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

This work aims at finding the obtainable when inseminating with cooks evaluated as apt from the spermatic point of view. With the totality of apt breeders -419 and 436 in units A and B respectively- 11735were inseminated out of much 283499 eggs were hatched,to be appraised by comparative proportion test, fertility and incubability. Values between 93:5 and 96.8% were obtained in fertility and f ...

SUBJECT: gallos; coq; fertility; cocks; insemination artificielle

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

Ninenty six White Leghom light breeders (L32) twenty four weeks old were distributed at random in cages of four fowls each in an experiment of three treatments and eight replications. These consisted of diets of different level of phosphorus avaible (pH.A) in the morning and in the afternoon: Fl: Constant diet control with 0.05 % (PRA) F2: Supply of 0.20% and 0.60"10(PRA) in between 8 a.m to l ...

SUBJECT: phosphore; fosforo; comportamiento; diet; regime alimentaire

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

The genetic basis of sex-detection according to genes linked to sex B and S here presented as well as several complementary genes which allow the expression of the diferences betwen the sexes. the production of whitte egges based on White Leghorn(WL)crossing has not made sex detecting through color possible due to composition of genes, yet WL breed is rich in color genes wich os appraised once ...

SUBJECT: poule pondeuse; coquille d'oeuf; layer chickens; genes; gene

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

There were made two trials to evaluate a level of 40 of a molasses B and vegetables fibres meal: Topinambur (Heliantes tuberosa); sugar cane and bananas leaves meal, in experimental conditions or in family backyard conditions with comun beans harvested and sugar cane mud residues in both trials it was a reference treatment that consisted in It laying hens comercial feed In the case of the tria ...

SUBJECT: poule pondeuse; layer chickens; gallina ponedora; alimentation des animaux; alimentacion de los animales

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]

Two levels of inclusion of kenaf oil of the Vinkat-3 variety were tried in diets for fattening chickens (2 and 5 % of oil). Acceptability of diet with 5% kenaf oil was very similar to the control trea1ment in which 5 % sunflower oil was used. Increase of live weight was also better in fowls which received 5 % kenaf oil as well as in those who received the same percentaje of sun-floweroil (p 0. ...

SUBJECT: aceites; oils; huile; poulet de chair; aceite de kenaf

POSTED TO: Revista Cubana de Ciencia Avícola [0138-6352]