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| Molina Benavides,Raúl Andrés; Sánchez Guerrero,Hugo; Atzori,Alberto Stanislao. |
| Abstract Thermal environment is recognized to be one the most important ecological factor to determine domestic animal growth, development and productivity for direct and indirect effects on its physiology and behavior. Despite having specific and individual adaptation, is very common, within seasonal or diurnal temperature variations, animals deal with situations outside their thermal comfort zone. Due to heat stress, dairy cows reduce milk production and fertility, and therefore, had achieved an increasing in metabolic disorders incidence, causing low revenues to farm in short and medium periods. Due to world climate change more impact of the meteorological variables on animal responses is expected for the future. This study aimed to describe and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Grazing; Livestock production systems; Milk production; System dynamics; Temperature. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100059 |
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| Molina Benavides,Raúl Andrés; Silva Aguilar,Fernando; Perilla Duque,Sandra; Sánchez Guerrero,Hugo. |
| La influencia del clima sobre el comportamiento de los animales ha sido demostrada desde hace muchos años. Variables climáticas como la temperatura (T, °C), humedad relativa (HR, %), radiación solar (Rs, W/m²) y velocidad del viento (Vv, m.s-1), por fuera de sus rangos normales, pueden desplazar a los rumiantes de su zona de confort, generandoles impactos negativos sobre su comportamiento, productividad y reproducción. Con el fin de caracterizar el ambiente térmico para la actividad ganadera en el Valle del Cauca - Colombia, se utilizaron 2 índices biometeorológicos (índices de carga calórica para ganado de leche y carne) para conocer la relación animal - ambiente. Los índices se aplicaron para los rangos climáticos más representativos del departamento (T=... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estrés calórico; Índices biometeorológicos; Comportamiento productivo y reproductivo; Variables climatológicas. |
| Ano: 2016 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122016000400012 |
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| Molina Benavides,Raúl Andrés; Sánchez Guerrero,Hugo; Campos Gaona,Rómulo; Atzori,Alberto Stanislao; Morales,Juan David. |
| Abstract The contribution of Colombia to global emissions of greenhouse gases (GHGs) is low (0.37%); from this percentage, 38% is attributed to agriculture. There are few studies on GHGs emissions at the regional level for agriculture. Therefore, the aim of this research is to estimate dynamically GHG and carbon footprint produced by cattle in the department of Valle del Cauca, Colombia. GHG estimates were established as follows: Tier II of IPCC methodology (2006), and population trends, which were simulated using dynamic system. According to the departmental livestock inventory in recent years (2009-2015), average emissions were 673 million of CO2eq. year-1, with emissions intensity (EI) of 5.58 kgCO2eq.kg.milk-1 and 3.54 kgCO2eq.kgmeat-1. Simulating the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allocation factor; Emission factor; Emission intensity; Livestock; System dynamic. |
| Ano: 2017 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000300422 |
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