| |
|
|
| Registros recuperados : 1,495 | |
| 213. |  | CHURCHMAN, C.W. Introdução à teoria dos sistemas. 2a. ed. Petrópolis, RJ (Brasil): Editora Vozes, 1972. 309 p. (Teoria dos sistemas; 1) Donación familia Dr. Juan Carlos Scarsi a Biblioteca INIA Treinta y Tres.
Traducido al portugués por Francisco M. Guimaraes del título original The systems approach.| Biblioteca(s): INIA Treinta y Tres. |
|   |
| 214. | | CAZZULI, F.; MONTOSSI, F. Introducción. In: MONTOSSI, F. (Ed.). Sistemas de suplementación mediante auto-suministro para la mejora de la recría invernal de terneros sobre campo natural en el norte del Uruguay. Montevideo (UY): INIA, 2017. p. 1-4 (INIA Serie Técnica; 234)| Biblioteca(s): INIA Tacuarembó. |
|  |
| 215. | | ALBÍN, A.; SIERRA, M. Introducción. Innovación: procesos interactivos que generan valor. Cuarta sección. Innovación en agroecología: intercambios que generan valor. Editores: Alfredo Albín y Miguel Sierra. In: Georgina Paula García-Inza; José María Paruelo; Roberto Zoppolo. (eds). Aportes científicos y tecnológicos del Instituto Nacional de Investigación Agropecuaria (INIA) del Uruguay a las trayectorias agroecológicas. Ciudad Autónoma de Buenos Aires : Fundación CICCUS, 2023. p.413-418. p.413-418.| Biblioteca(s): INIA Las Brujas. |
| |
| Registros recuperados : 1,495 | |
|
|
|
 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha actual : |
17/10/2014 |
|
Actualizado : |
14/10/2019 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
A - 2 |
|
Autor : |
CAVESTANY, D.; GALINA, C.S. |
|
Afiliación : |
DANIEL CAVESTANY BOCKING, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CS GALINA, Facultad de Medicina Veterinaria y Zootecnia. Universidad Nacional Autónoma de México. México, México. |
|
Título : |
Evaluation of an artificial insemination programme in a seasonal breeding dairy systems through milk progesterone. |
|
Fecha de publicación : |
2001 |
|
Fuente / Imprenta : |
Reproduction in Domestic Animal, v.36.p.79-84, 2001. |
|
DOI : |
10.1046/j.1439-0531.2001.00255.x |
|
Idioma : |
Inglés |
|
Contenido : |
Abstract
In order to evaluate an artificial insemination programme and reproductive efficiency of dairy herds in Uruguay, a survey was conducted with five dairy farms, utilizing a total of 768 lactating Holstein cows. Precision of oestrous detection was assessed by one milk progesterone sample taken on day of breeding and was 11.1%. Two additional samples taken at day 10 and 23 were used to confirm ovulation and early pregnancy. Accuracy of pregnancy estimation by milk progesterone was 70.4%. Reproductive efficiency was determined by the analysis of records. Average intervals from calving to first service were 101 days and to conception 132 days and these were affected by parity, body weight and body condition at calving, but not at breeding, or by milk production. Oestrous detection rates and pregnancy rates were 37.5 and 15.6%, respectively. It was concluded that losses in reproductive efficiency in dairy farms of Uruguay in a seasonal artificial insemination programme were mainly due to unobserved heats, rather than incorrect oestrous detection. |
|
Palabras claves : |
EFICIENCIA REPRODUCTIVA; REBAÑOS LECHEROS; SISTEMAS LECHEROS. |
|
Thesagro : |
INSEMINACIÓN ARTIFICIAL; LECHERÍA; PROGESTERONA; URUGUAY. |
|
Asunto categoría : |
L01 Ganadería |
|
Marc : |
LEADER 01765naa a2200229 a 4500
001 1051165
005 2019-10-14
008 2001 bl uuuu u00u1 u #d
024 7 $a10.1046/j.1439-0531.2001.00255.x$2DOI
100 1 $aCAVESTANY, D.
245 $aEvaluation of an artificial insemination programme in a seasonal breeding dairy systems through milk progesterone.
260 $c2001
520 $aAbstract In order to evaluate an artificial insemination programme and reproductive efficiency of dairy herds in Uruguay, a survey was conducted with five dairy farms, utilizing a total of 768 lactating Holstein cows. Precision of oestrous detection was assessed by one milk progesterone sample taken on day of breeding and was 11.1%. Two additional samples taken at day 10 and 23 were used to confirm ovulation and early pregnancy. Accuracy of pregnancy estimation by milk progesterone was 70.4%. Reproductive efficiency was determined by the analysis of records. Average intervals from calving to first service were 101 days and to conception 132 days and these were affected by parity, body weight and body condition at calving, but not at breeding, or by milk production. Oestrous detection rates and pregnancy rates were 37.5 and 15.6%, respectively. It was concluded that losses in reproductive efficiency in dairy farms of Uruguay in a seasonal artificial insemination programme were mainly due to unobserved heats, rather than incorrect oestrous detection.
650 $aINSEMINACIÓN ARTIFICIAL
650 $aLECHERÍA
650 $aPROGESTERONA
650 $aURUGUAY
653 $aEFICIENCIA REPRODUCTIVA
653 $aREBAÑOS LECHEROS
653 $aSISTEMAS LECHEROS
700 1 $aGALINA, C.S.
773 $tReproduction in Domestic Animal$gv.36.p.79-84, 2001.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
