Fecha/hora: 09/06/2024 19:16:36

Biblioteca(s): | INIA Tacuarembó.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | Internacional - --
Fecha corriente: | 21/02/2014
Fecha de la última actualización: | 12/11/2019
Autoria: | REAL, D.; GORDON, I.L.; HODGSSON, J.
Afiliación: | DANIEL REAL FERREIRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Department of Plant Science, Massey University, PO Box 11.222, Palmerston North, New Zealand.Institute of Molecular Biosciences, Massey University, Palmerston North, New Zealand; Department of Plant Science, Massey University, PO Box 11.222, Palmerston North, New Zealand. Institute of Natural Resources, Massey University, Palmerston North, New Zealand.
Título: | Statistical modelling of grazing preference of sheep when presented with a range of plant types.
Año de publicación: | 2001
Fuente/Imprenta: | Journal of Agricultural Science, 2001, v. 136, no. 1, p. 111-117.
DOI: | 10.1017/S0021859600008418
Idioma: | Inglés
Notas: | Article history: Revised MS received 22 June 2000.

Contenido:

SUMMARY: A statistical model of the grazing preference of sheep is presented for the evaluation of spaced plants in small plots for plant breeding purposes. Plants are located randomly to reduce the effect of external factors on diet selection, and to differentiate between discriminatory and random grazing. Consistency of discrimination among grazings and sites (Massey University, New Zealand and INIA La Estanzuela, Uruguay) was tested. The statistical design and subsequent analyses considered all sources of variation to minimize error, and to separate genetic effects from environment effects.
Clonal replicates were used to enhance error-control, and hence the precision of heritability estimates, as most characters are inherited quantitatively. Post-grazing lea®ness is considered the best character to select and breed for animal preference in a red clover germplasm.

Palabras-Clave: | ALIMENTACIÓN ANIMAL; ANIMAL FEEDING; ANIMAL PRODUCTIONS; GENOTYPE ENVIRONMENT INTERACTION; INTERACCIÓN GENOTIPO AMBIENTE; MODEL STUDY; MODELIZACIÓN; MODELO ESTADÍSTICO; OVINOS; PASTOREO; PLANTA FORRAJERA; SELECCIÓN VARIETAL; STATISTICAL MODEL.
Thesagro: | OVINOS.
Categoría del tema: | A50 Investigación agraria
Registro original: | INIA Tacuarembó (TBO)
Ejemplares: | TBO - (18189-1) - PXI - AP - DD -  -  -  - DIS