Análisis epidemiológico en vacas repetidoras
Epidemiological analysis in repeat breeders cows
| dc.creator | González Stagnaro, Carlos | |
| dc.creator | Madrid Bury, Ninoska | |
| dc.creator | Goicochea Llaque, Javier | |
| dc.date | 2009-05-08T17:19:46Z | |
| dc.date | 2009-05-08T17:19:46Z | |
| dc.date | 2009-05-08T17:19:46Z | |
| dc.date.accessioned | 2022-11-16T20:30:54Z | |
| dc.date.available | 2022-11-16T20:30:54Z | |
| dc.identifier | 0798-2259 | |
| dc.identifier | http://www.saber.ula.ve/handle/123456789/28147 | |
| dc.identifier | 199102ZU46 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5207248 | |
| dc.description | En vacas doble propósito se reporta la incidencia de servicios repetidos (SR) con base a 50.680 datos y se identifican factores de riesgo (FR) en 12.115 registros (4.867 vacas) de rebaños bajo sistema de manejo tradicional (SMT, predominio Bos indicus) y manejo mejorado (SMM, predominio Bos taurus). Mediante análisis epidemiológico se determinó relación de probabilidades (Odds Relation, OR) y variables de predicción para cada FR. La tasa de 14,7% de SR, difirió entre rebaños (OR=7,8; P<0,01): 21,6 vs 9,2% en SMM y SMT. Predominaron FR del rebaño en SMT (76,4%) y FR individuales en SMM (68,3%; P<0,001), destacando como FR del rebaño, en SMM: producción de leche (PL): 11,4 vs 8,89k/d (P<0,01); condición corporal (CC): 2,95 vs 2,28 (P<0,05); enfermedades infecciosas, mortalidad embrionaria (ME) y detección de celos (EDC); en SMT: EDC: 49,9 vs 66,5% (P<0,01); gestión, CC y PL. Como FR individuales en SMT: perdida de peso y CC, partos problema, época de parto; en SMM: PL, alteraciones endocrinas y de ovulación. Las variables de predicción confirmarón la importancia de los FR descritos, para SMT: EDC (OR=12,8; P<0,001), gestión (OR=8,0), enfermedades infecciosas (OR=7,5) y momento de inseminación (OR=6,2) (P<0,01); para SMM (P<0,001): ME (OR=10,1), enfermedades infecciosas (OR=9,8), predominio racial (OR=9,6) y PL (OR=8,1). | |
| dc.description | In dual purpose herds under traditional (SMT, Bos indicus predominance) and improved management systems (SMM, Bos taurus predominance) the incidence of repeat breeding cows (SR) using 50,680 observations and the identification of the risk factors (FR, 12,115 data) are reported. The relation of probabilities (Odds Relation, OR) and the variables of prediction for each FR were calculated applying epidemiological analysis. The rate 14.7% of SR was different between herds (OR=7.8; P<0.001): 21.6 vs 9.2% for SMM and SMT. The FR of the herds were predominant in SMT (76.4%) while in SMM (68.3%; P<0.001) were predominant in individual cows. The most evident FR in the herds for SMM were: milk production (PL): 11.4 vs 8.89k/d (P<0.01); body condition (CC): 2.95 vs 2.28 (P<0.05); infectious diseases, embryo mortality (ME), oestrous detection (EDC).and for SMT were: EDC: 49.9 vs 66.5% (P<0.01), herd management, CC and, PL. The individual FR were: for SMT, weight and CC losses, calving problems, calving season and, for SMM were: PL, endocrine and, ovulation disturbances. The prediction variables confirm the importance of the FR described for SMT: EDC (OR=12.8; P<0.001), herd management (OR=8.0), infectious diseases (OR=7.5), insemination time (OR=6.2) (P<0.01) and, for SMM: ME (OR=19.1), infectious diseases (OR=9.8), PL (OR=8.1) and breed predominance (OR=9.6) (P<0.01). | |
| dc.description | 428 - 430 | |
| dc.description | cdgonzal@luz.ve | |
| dc.description | Bimestral | |
| dc.format | image/jpeg | |
| dc.format | application/pdf | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/3.0/ve/ | |
| dc.subject | Sistemas de manejo | |
| dc.subject | Servicios repetidos | |
| dc.subject | Epidemiología | |
| dc.subject | Factores de riesgo | |
| dc.subject | Vacas doble propósito | |
| dc.subject | Universidad del Zulia (LUZ) | |
| dc.subject | Universidad de Los Andes (ULA) | |
| dc.subject | Management systems | |
| dc.subject | Repeat breeding cows | |
| dc.subject | Epidemilogy | |
| dc.subject | Risk factors | |
| dc.subject | Dual purpose cows | |
| dc.subject | Revista Científica | |
| dc.subject | Revistas | |
| dc.title | Análisis epidemiológico en vacas repetidoras | |
| dc.title | Epidemiological analysis in repeat breeders cows | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | Texto |