Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina

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We determined the seasonal nutrient and secondary compound intake, in vivo diet digestibility (DD) and diet species composition of goats in different physiological states in a desert rangeland of Argentina. During the wet and the dry seasons, 24 mature female Creole goats (six non-lactating, non-pre...

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Autores principales: Egea, Angela Vanina, Bakker, María Leontina, Allegretti, Liliana Inés, Paez, Sebastián Antonio, Grilli, Diego Javier, Guevara, Juan Carlos, Viillalba, Juan José
Formato: Institucional - Material de Difusión
Lenguaje:Inglés
Publicado: Comité editor Grass and Forage Science 2020
Materias:
Diet composition
Feed intake
Goat
Grazing
Behavior
Nutrient
Tannin
Acceso en línea:http://repositorio.umaza.edu.ar//handle/00261/1806
https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12393
Aporte de:
UMAZA Digital (Universidad MAZA - Mendoza) de Universidad Juan Agustín MAZA
id I56-R162-00261-1806
record_format dspace
spelling I56-R162-00261-18062023-09-14T02:04:30Z Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina Egea, Angela Vanina Bakker, María Leontina Allegretti, Liliana Inés Paez, Sebastián Antonio Grilli, Diego Javier Guevara, Juan Carlos Viillalba, Juan José Diet composition Feed intake Goat Grazing Behavior Nutrient Tannin We determined the seasonal nutrient and secondary compound intake, in vivo diet digestibility (DD) and diet species composition of goats in different physiological states in a desert rangeland of Argentina. During the wet and the dry seasons, 24 mature female Creole goats (six non-lactating, non-pregnant and six lactating in each season) were used in a 2 × 2 factorial design. Diet botanical composition, DD and dry-matter intake (DMI) were estimated by the combined use of visual observation, microhistological analyses of faecal samples and n-alkane technique. Browse species dominated the goats’ diets (>80%) in both seasons and physiological states, with a twofold increase in the proportion of forbs during the wet season (p < 0.10). Lactating goats showed greater DMI than non-lactating animals, and they also displayed greater intakes of some tanniferous (Mimosa ephedroides) and high-protein (Atriplex lampa) shrubs (p < 0.10). Lactating and non-lactating goats selected diets with adequate crude protein (CP) and fibre content but insufficient energy, although lactating goats tended to increase energy and tannin content in their diets (p < 0.20). Physiological state did not influence DD, but digestibility was greater (p < 0.10) in the wet season, attributed to the greater protein content and lower tannin content of the diet. These results have important implications for managerial interventions on traditional goat production systems in the study area aiming at enhancing goat nutrition and welfare, as well as the sustainability of rangeland resources in the region. Sitio de la revista: https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12393 2020-10-26T19:00:23Z 2020-10-26T19:00:23Z 2018-10-01 Institucional - Material de Difusión Egea, A. V., Bakker, M. L., Allegretti, L. I., Paez, S. A., Grilli, D. J., Guevara, J.C., y Villalba, J. J. (2018). Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non‐lactating goats browsing in a semi‐arid rangeland of Argentina. Grass and Forage Science, 74, (1), 115-128. https://doi.org/10.1111/gfs.12393 1365-2494 http://repositorio.umaza.edu.ar//handle/00261/1806 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12393 eng image/png Comité editor Grass and Forage Science 74;1
institution Universidad Juan Agustín MAZA
institution_str I-56
repository_str R-162
collection UMAZA Digital (Universidad MAZA - Mendoza)
language Inglés
orig_language_str_mv eng
topic Diet composition
Feed intake
Goat
Grazing
Behavior
Nutrient
Tannin
spellingShingle Diet composition
Feed intake
Goat
Grazing
Behavior
Nutrient
Tannin
Egea, Angela Vanina
Bakker, María Leontina
Allegretti, Liliana Inés
Paez, Sebastián Antonio
Grilli, Diego Javier
Guevara, Juan Carlos
Viillalba, Juan José
Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina
topic_facet Diet composition
Feed intake
Goat
Grazing
Behavior
Nutrient
Tannin
description We determined the seasonal nutrient and secondary compound intake, in vivo diet digestibility (DD) and diet species composition of goats in different physiological states in a desert rangeland of Argentina. During the wet and the dry seasons, 24 mature female Creole goats (six non-lactating, non-pregnant and six lactating in each season) were used in a 2 × 2 factorial design. Diet botanical composition, DD and dry-matter intake (DMI) were estimated by the combined use of visual observation, microhistological analyses of faecal samples and n-alkane technique. Browse species dominated the goats’ diets (>80%) in both seasons and physiological states, with a twofold increase in the proportion of forbs during the wet season (p < 0.10). Lactating goats showed greater DMI than non-lactating animals, and they also displayed greater intakes of some tanniferous (Mimosa ephedroides) and high-protein (Atriplex lampa) shrubs (p < 0.10). Lactating and non-lactating goats selected diets with adequate crude protein (CP) and fibre content but insufficient energy, although lactating goats tended to increase energy and tannin content in their diets (p < 0.20). Physiological state did not influence DD, but digestibility was greater (p < 0.10) in the wet season, attributed to the greater protein content and lower tannin content of the diet. These results have important implications for managerial interventions on traditional goat production systems in the study area aiming at enhancing goat nutrition and welfare, as well as the sustainability of rangeland resources in the region. Sitio de la revista: https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12393
format Institucional - Material de Difusión
author Egea, Angela Vanina
Bakker, María Leontina
Allegretti, Liliana Inés
Paez, Sebastián Antonio
Grilli, Diego Javier
Guevara, Juan Carlos
Viillalba, Juan José
author_facet Egea, Angela Vanina
Bakker, María Leontina
Allegretti, Liliana Inés
Paez, Sebastián Antonio
Grilli, Diego Javier
Guevara, Juan Carlos
Viillalba, Juan José
author_sort Egea, Angela Vanina
title Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina
title_short Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina
title_full Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina
title_fullStr Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina
title_full_unstemmed Seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of Argentina
title_sort seasonal changes in feed intake, diet digestibility and diet composition by lactating and non-lactating goats browsing in a semi-arid rangeland of argentina
publisher Comité editor Grass and Forage Science
publishDate 2020
url http://repositorio.umaza.edu.ar//handle/00261/1806
https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12393
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