ListarArchivos de Zootecnia por tema "Ganado vacuno"
Mostrando ítems 1-20 de 26
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Alteraciones de la red capilar de la glándula mamaria en mamitis por E.. coli en ganado vacuno
(Universidad de Córdoba, Servicio de Publicaciones, 1981)The alterations present in the capillary net of the mammary gland with inflamatory processes produced by E. coli have been examined. As more important lesions we have observed: endothelial tumefaction, increase of the ... -
Análisis del punto de equilibrio de las explotaciones de vacuno de aptitud lechera de la campiña baja cordobesa
(Universidad de Córdoba, Servicio de Publicaciones, 1995)The dairy cow farms from the Campiña baja of Córdoba, have been stratified to make the cost benefit analysis and, also, establish the strata break even point. It has been also determined the minimal size to cover the ... -
Análisis estratificado de costes del sector vacuno de aptitud lechera de la campiña baja cordobesa
(Universidad de Córdoba, Servicio de Publicaciones, 1994)It has been carried out a research on the competitive level of d airy cattle secto r i n the Campiña bajáof Córdoba. It has been calculated the cost, profit and cash-flaw. Whith this model is possible to com¬pare the stratum ... -
Una aproximación económica a la dimensión óptima de las explotaciones lácteas extensivas (Argentina)
(Universidad de Córdoba, Servicio de Publicaciones, 1997)The production and benefit function of dairy farms, of the Cuenca Central Santafesina (Argentina), were studied by Garcia Martinez etal. (1996). In this work the combinations of concentrate and number of cows by exploitation ... -
The canary islands breeds: past, present and future
(Universidad de Córdoba, Servicio de Publicaciones, 1992)We describe the means developed by official and private institutions for the conservation of Canary Breeds. We evaluate the response to concrete actions comparing the evolution of their census with presented at the Warwick ... -
Caracterización genética de ganado bovino criollo argentino utilizando microsatélites
(Universidad de Córdoba, Servicio de Publicaciones, 1998)It is characterized a sample of Bovino Criollo Argentino cattle with a panel of eight microsatellites. It is detected a number of alleles between 2 and 7. The values of Heterocigosity by locus are between 0.46 for HEL-1 ... -
Clasificación técnico-económica de las explotaciones lácteas de la campiña baja cordobesa
(Universidad de Córdoba, Servicio de Publicaciones, 1995)It has been carried out a economic research on dairy cattle farms in the Campiña baja of Córdoba (Spain) considering fifteen physical economic variables. The factorial analysis methodhas been used to reduce the farm dimension ... -
Coeficientes de alometría en las diferentes piezas y tejidos de canales de añojos de raza retinta y cruzadas charolés x retinto
(Universidad de Córdoba, Servicio de Publicaciones, 1988)A study was made on Retinto and Retinto x Charolais yearlings. For the Retinto the age and weight of slaughter were between 12 and 18 months and 294.1 + 55 kg of carcasse whilst in crossbreeds, at similar ages, the mean ... -
Determinación de algunos parámetros cefálicos del vacuno de raza retinta
(Universidad de Córdoba, Servicio de Publicaciones, 1988)Using variables which allow measurements to be made of direct cephalic parameters -length, width and height of the head (54.8 + 2.0; 23.0 + 1.2; 27.6 + 0.9) and the cranium (19.7 + 1.3; 18.6 + 1.1; 12.8 + 0.7)- a biomathematical ... -
Dinámica folicular ovárica en vacas repetidoras: estudio ecográfico y perfil de progesterona
(Universidad de Córdoba, Servicio de Publicaciones, 2004)The aim of this study was to examine follicular development patterns in eighteen repeat breeder cows through spontaneous oestrus cycles. Ovarian ultrasonographic examinations over 32 days after artificial insemination ... -
Efecto del medio de cultivo y la suplementación proteica en la maduración in vitro de ovocitos bovinos
(Universidad de Córdoba, Servicio de Publicaciones, 1997)In the present work, the effects of oocyte maturation medium and protein supplementation on in vitro maturation process of immature bovine oocytes are described. Three different culture media, such as: TCM-199 medium, DME ... -
Efecto del método de selección de esperma congelado de bovino sobre los índices de fecundación y división in vitro
(Universidad de Córdoba, Servicio de Publicaciones, 1997)In the present work, the effect of two selection methods of bovine frozen sperm on in vitro fertilization and cleavage rates of in vitro matured and fertilized bovine oocytes was evaluated. Two usual sperm selection systems ... -
Espesor de la piel en la raza vacuna retinta y sus posibles relaciones con los fenómenos de termorregulación
(Universidad de Córdoba, Servicio de Publicaciones, 1983)In the following paper w have studied the thickness of the skin and its papillary layer, extracting biopsies from the infraorbital, presternas and hind leg regions. We have used beef cattle of the Retinto breed. We have ... -
Estimación de la curva de crecimiento en vacuno retinto: aspectos prácticos para la tipificación de pesos
(Universidad de Córdoba, Servicio de Publicaciones, 1992)The growth curve in Retinto cattle from Extremadura and Andalusia is studied, taking in account the birthing sequence, season and type of birth, type of mating and offsprings sex. The function of lineal regression, Weight ... -
Estudio de la unión de silimarina a proteínas plasmáticas. I. Proteínas de bovino
(Universidad de Córdoba, Servicio de Publicaciones, 1983)The binding of the silymarin--antihepatotoxic principle from Sylibum marianum (L.) Gaertn - to the plasmatic proteins has been studied by equilibium dialysis. From the results obtained it is inferred that 68,21 + 1,61 per ... -
Estudio epizootiológico de listeriosis, mediante encuesta serológica, en rumiantes de la provincia de Córdoba
(Universidad de Córdoba, Servicio de Publicaciones, 1984)A serological inquiry on listeriosis of the domestic ruminants of the province of Cordoba (Spain) was made to know the epizootiology of the disease. The agglutination in tube with 2-mercaptoetanol technique was carried out ... -
An improved method for chromosome preparations from bovine oocytes and zygotes obtained by in vitro maturation and fertilization techniques
(Universidad de Córdoba, Servicio de Publicaciones, 1998)Matured bovine oocytes and zygotes obtained by in vitro maturation and fertilization techniques (IVM and IVF) were cytogenetically prepared by using an improved method for chromosome preparations. The method, which involves ... -
Incidencia de la translocación 1/29 en vacas de la raza retinta con trastornos de la reproducción
(Universidad de Córdoba, Servicio de Publicaciones, 1985)We have studied a sample of 18 cows of Retinta breed presenting a disminution in fertility, and a bad response to profilactic and clinic treatments. The karyotypes of in vitro cultures of leucocytes show that a centric ... -
Niveles químicos plasmáticos en vacas repetidoras tras i.a.
(Universidad de Córdoba, Servicio de Publicaciones, 2004)Numerous studies report important metabolic imbalances during the transitional period of the cow affecting its reproduction. However, only a few of them concern the early period of gestation, where variations in the plasmatic ... -
Perspectives of the beef cattle production within the bounds of the European Union
(Universidad de Córdoba, Servicio de Publicaciones, 1993)The discussion showed that the representatives of the northern countries defended an improvement of extensive beef production systems, while people from the southern countries proposed to investigate carcass and meat quality ...