Temas
Mostrando ítems 1-11 de 11
-
A combination of rules govern fruit trait preference by frugivorous bat and bird species: nutrients, defence and size
(Elsevier, 2021-06)Several hypotheses explain how sensory, anatomical and physiological constraints drive fruit preference in frugivores. Optimal diet theory (ODT) states that frugivores make decisions based on the energy contained in food. ... -
Are winter rangelands enough to satisfy the nutritional requirements of late‑gestation transhumant goats in Patagonia?
(Springer, 2022-08-03)Transhumant herds graze across two different rangeland types according to the season. Winter rangelands differ from summer rangelands in the amount and quality of available fodder, with the former being the less productive. ... -
Dietary nitrate metabolism and enteric methane mitigation in sheep consuming a protein-deficient diet
(CSIRO Publishing, 2019-09-20)It was hypothesised that the inclusion of nitrate(NO3 –) or cysteamine hydrochloride (CSH) in a protein deficient diet (4.8% crude protein; CP) would improve the productivity of sheep while reducing enteric methane (CH4) ... -
The effect of dietary nitrate and canola oil alone or in combination on fermentation, digesta kinetics and methane emissions from cattle
(Elsevier, 2020-01)Nitrate and lipids have been recognized as effective dietary additives to reduce enteric methane (CH4) production. The objective of this experiment was to evaluate the effects of nitrate (NO3¯) and canola oil, alone or in ... -
Effect of population density on diet composition and dietary niche breadth of guanaco (Lama guanicoe, Müller 1776) in northeastern Patagonian steppes
(Elsevier, 2019-11)The optimal foraging theory postulates that as animal population density increases, the progressive decline in preferred forage availability results in changes in diet composition and widening of dietary niche breadth. For ... -
Food partitioning between the Mara (Dolichotis patagonum) and the introduced hare (Lepus europaeus) in the Monte desert, Argentina
(Taylor & Francis, 1997)In the semiarid Monte desert, Río Negro province, the mara (Dolichotis patagonum) and the European hare (Lepus europaeus), which was introduced about hundred years ago, today occur sympatrically, as in many regions of ... -
Influence of pre and postpartum maternal body condition score on the growth of Neuquén Criollo kids
(Elsevier, 2021-12)In Neuquén Criollo goat production systems, the sale of goat kids for slaughter is the main source of income. Marketing kids weighing at least 14 kg live weight before 90 days of age improves economic returns due to better ... -
Manejo nutricional pre y post-destete en crias de cabras angora del norte de la patagonia
(Facultad de Ciencias Veterinarias, Universidad Nacional de La Pampa, 2021-12)En los hatos de cabras Angora en el norte de la región Patagónica, las crías suelen manifestar deficiencias nutricionales desde el nacimiento hasta el destete a los 90 días que se asocian a bajas tasas de señalada y destete, ... -
Nitrate and nitrite absorption, recycling and retention in tissues of sheep
(Elsevier, 2021-07)Dietary nitrate is of increasing interest both for the pharmacological effects of its metabolites as well as its capacity to inhibit methanogenesis in the gut. A sequence of three experiments was conducted to investigate ... -
Producción de leche y crecimiento de corderos de ovejas merino en pastoreo extensivo en Patagonia Norte = Milk yield and lamb growth of Merino ewes under extensive grazing in Northern Patagonia
(Asociación Argentina de Producción Animal, 2021-11)El objetivo del presente trabajo fue determinar la producción de leche entre las semanas 2- 16 después del parto en ovejas Merino en pastoreo extensivo y establecer su relación con el crecimiento de los corderos hasta el ... -
What do domestic livestock eat in northern Patagonian rangelands?
(CSIRO Publishing, 2013-02)The Patagonian rangelands are dominated by steppes interspersed with meadows (locally called mallines), which are small but permanently humid areas, characterised by high spring–summer quality and productivity of grasses ...