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Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy.
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Biblioteca (s) :  INIA La Estanzuela.
Fecha :  21/02/2014
Actualizado :  11/11/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  MARTIN, G.B.; MILTON, J.T.B.; DAVIDSON, R.H.; BANCHERO, G.; LINDSAY, D.R.; BLACHE , D.
Afiliación :  G.B. MARTIN; J.T.B. MILTON; R.H. DAVIDSON; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; D.R. LINDSAY; D. BLACHE.
Título :  Natural methods for increasing reproductive efficiency in small ruminants.
Fecha de publicación :  2004
Fuente / Imprenta :  Animal Reproduction Science,Volumes 82-83, July 2004, Pages 231-245.
DOI :  10.1016/j.anireprosci.2004.05.014
Idioma :  Inglés
Notas :  Article history:Available online 15 July 2004.
Contenido :  Abstract This paper describes three strategies to improve the reproductive performance of small ruminants in ways that lead to ?clean, green and ethical? animal production. The first is aimed at control of the timing of reproductive events for which we turn to the socio-sexual inputs of the ?male effect? to induce synchronised ovulation in females thatwould otherwise be anovulatory. The second strategy, ?focussed feeding?, is based on our knowledge of the responses to nutrition and aims to develop short programs of nutritional supplements that are precisely timed and specifically designed for individual events in the reproductive process, such as gamete production, embryo survival, fetal programming and colostrum production. The third strategy aims to maximise offspring survival by a combination of management, nutrition and genetic selection for behavior (temperament). All of these approaches involve non-pharmacological manipulation of the endogenous control systems of the animals and complement the detailed information from ultrasound that is now becoming available. The use of such clean, green and ethical tools in the management of our animals can be cost-effective, increase productivity and, at the same time, greatly improve the image of meat and milk industries in society and the marketplace.
Palabras claves :  COLOSTRUM; MALE EFFECT; NUTRITION; OFFSRPING SURVIVAL; SUPERVIVENCIA DE LOS DESCENDIENTES; TEMPERAMENT; TRMPERAMENTO.
Thesagro :  CALOSTRO; EFICIENCIA REPRODUCTIVA; NUTRICION ANIMAL; SUPERVIVENCIA.
Asunto categoría :  L53 Fisiología Animal - Reproducción
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE44303 - 1PXIDD - DDPP/Animal Reproduction Science/2004

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Registro completo
Biblioteca (s) :  INIA Las Brujas.
Fecha actual :  28/02/2024
Actualizado :  28/02/2024
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Circulación / Nivel :  Internacional - --
Autor :  GONZÁLEZ, M.; RESQUÍN, F.; BALMELLI, G.
Afiliación :  MILENA GONZÁLEZ CHAVEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE FERNANDO RESQUIN PEREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO DANIEL BALMELLI HERNANDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Estimation of genetic parameters for productive traits in Eucalyptus tereticornis and implications for breeding. [Estimación de parámetros genéticos para características productivas en Eucalyptus tereticornis e implicancias en el mejoramiento genético.].
Fecha de publicación :  2023
Fuente / Imprenta :  Bosque (Valdivia). 2023, 44(3): 493-502. http://doi.org/10.4067/S0717-92002023000300493 -- OPEN ACCESS.
ISSN :  0304-8799 (print); e-ISSN 0717-9200
DOI :  10.4067/S0717-92002023000300493
Idioma :  Inglés
Notas :  Article history: Recibido 10 April 2022; Aceptado 07 July 2023. -- Correspondence: Balmelli, G.; Instituto Nacional de Investigación Agropecuaria (INIA), Programa de Producción Forestal, Estación Experimental INIA Tacuarembó, Tacuarembó, Uruguay; email:gbalmelli@inia.org.uy -- Document type: Article - Gold Open Access. -- Publisher: Universidad Austral de Chile. -- Funding: The funding of this work came from INIA Uruguay. --
Contenido :  ABSTRACT.- Eucalyptus tereticornis exhibits adaptation to a wide range of soils and environments, making it suitable for various protective and productive purposes throughout the territory of Uruguay. Due to the absence of a locally improved seed source, INIA began a tree breeding program in 2007 using genetic material from two sources: the natural distribution area of the species and local plantations. The performance of the genetic pool was evaluated at different sites over a nine-year growth period. The objectives of this study were to estimate genetic parameters (heritability, genetic correlations, and genotype-by-environment interaction) for growth and stem form traits and to estimate the genetic gains achievable through selection at different ages, in order to guide the breeding strategy for E. tereticornis. The genotype-environment interaction for volume and survival exhibited moderate to low levels, with Type B genetic correlations ranging from 0.68 to 0.82. The combined analysis of the trials revealed that heritability increased with the age of measurement for all traits, with values ranging from low to moderate for growth variables (0.04 - 0.23) and stem form (stem straightness and forking) showing low values (0.05 - 0.12). Genetic correlations between growth traits at different ages and volume at 9 years were positive and high (0.32 - 0.99), while the correlations between stem form (stem straightness and forking) and volume were low to moderate (0.30 - 0.56). The ... Presentar Todo
Palabras claves :  Correlaciones genéticas; Early selection; Ganancia genética; Genetic correlations; Genetic gain; Heredabilidad; Heritability; Partnership for the goals - Goal 17; Selección temprana; SISTEMA FORESTAL - INIA; Sustainable Development Goals (SDGs).
Asunto categoría :  K01 Ciencias forestales - Aspectos generales
URL :  https://www.scielo.cl/pdf/bosque/v44n3/0717-9200-bosque-44-03-493.pdf
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB103823 - 1PXIAP - DDBosque (Valdivia)/2023
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