Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics
Tesis (Ph. D) -- CATIE, Turrialba (Costa Rica),2002
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CATIE, Turrialba (Costa Rica)
2014
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| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/965 |
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RepoCATIE9652023-08-15T16:28:30Z Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics Abreu, María Helena Souza de Ibrahim, Muhammad DAIRY CATTLE DAIRY COWS HEAT STRESS HEAT TOLERANCE AGROFORESTRY SHADE PLANTS DAIRY FARMS ECONOMIC VIABILITY PASTURES ANIMAL PERFORMANCE HUMID TROPICSCOSTA RICA GANADO DE LECHE VACAS LECHERAS ESTRES TERMICO TOLERANCIA AL CALOR AGROFORESTERIA PLANTAS DE SOMBRA GRANJAS LECHERAS VIABILIDAD ECONOMICA PASTIZALES DESEMPEÑO ANIMAL TROPICOS HUMEDOS Tesis (Ph. D) -- CATIE, Turrialba (Costa Rica),2002 Ilustraciones. Tablas Referencias inician en la página 43 La presente disertación trata de dos temas: 1) el efecto de los árboles de sombra sobre el control del estrés calórico en el ganado de leche y 2) la contribución de los árboles dispersos en los pastizales para la viabilidad financiera de las fincas ganaderas en La Fortuna, San Carlos, Costa Rica. No se pudieron encontrar datos cuantitativos sobre el efecto de los árboles de sombra en la Producción de leche de vacas en pastoreo en Costa Rica y son pocos los estudios que se han realizado sobre árboles dispersos en pastizales de acuerdo al sistema de manejo animal y su contribución financiera a las fincas ganaderas. Con el fin de analizar el efecto de los pastizales con sombras naturales sobre el desempeño del ganado lechero, se asignaron ocho vacas Jersey a dos niveles de sombra cada uno (sombra vs. sin sombra) durante dos períodos definidos. Con el fin de entender la función de los árboles dispersos en pastizales y su contribución financiera a las fincas ganaderas, se evaluaron tres sistemas de Producción animal: mixto (Ganadería y agricultura), especializado en leche y doble propósito (leche y carne). This dissertation addresses two themes: the effect of shade trees in controlling heat stress in dairy cows and the contribution of trees dispersed in pastures to the financial viability of livestock farMON in La Fortuna, San Carlos, Costa Rica. No quantitative data could be found on the effect of shade trees on milk production of cows grazing in pastures in Costa Rica and few studies have been carried out on dispersed trees in pastures according to the type of animal system and their financial contribution to cattle farMON. To analyse the effect of natural shaded pastures on performance on dairy cattle, eight Jersey cows were assigned to two shade levels each (shade vs. no shade) during two defined seasons. To understand the role of trees dispersed in pastures and their financial contribution to cattle farMON, three types of animal production systeMON were studied: mixed (dairy and agriculture), specialized milk and dual purpose systeMON (milk and meat). The area of pasture with trees was higher in dual purpose systeMON, predominantly the tree species laurel (Cordia alliodora). 2014-10-17T06:52:59Z 2014-10-17T06:52:59Z 2002 Tesis de doctorado 365020 https://repositorio.catie.ac.cr/handle/11554/965 Turrialba (Costa Rica) en 166 páginas application/pdf CATIE, Turrialba (Costa Rica) |
| institution |
Centro Agronómico Tropical de Investigación y Enseñanza |
| collection |
Repositorio CATIE |
| language |
Inglés |
| topic |
DAIRY CATTLE DAIRY COWS HEAT STRESS HEAT TOLERANCE AGROFORESTRY SHADE PLANTS DAIRY FARMS ECONOMIC VIABILITY PASTURES ANIMAL PERFORMANCE HUMID TROPICSCOSTA RICA GANADO DE LECHE VACAS LECHERAS ESTRES TERMICO TOLERANCIA AL CALOR AGROFORESTERIA PLANTAS DE SOMBRA GRANJAS LECHERAS VIABILIDAD ECONOMICA PASTIZALES DESEMPEÑO ANIMAL TROPICOS HUMEDOS |
| spellingShingle |
DAIRY CATTLE DAIRY COWS HEAT STRESS HEAT TOLERANCE AGROFORESTRY SHADE PLANTS DAIRY FARMS ECONOMIC VIABILITY PASTURES ANIMAL PERFORMANCE HUMID TROPICSCOSTA RICA GANADO DE LECHE VACAS LECHERAS ESTRES TERMICO TOLERANCIA AL CALOR AGROFORESTERIA PLANTAS DE SOMBRA GRANJAS LECHERAS VIABILIDAD ECONOMICA PASTIZALES DESEMPEÑO ANIMAL TROPICOS HUMEDOS Abreu, María Helena Souza de Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics |
| description |
Tesis (Ph. D) -- CATIE, Turrialba (Costa Rica),2002 |
| author2 |
Ibrahim, Muhammad |
| author_facet |
Ibrahim, Muhammad Abreu, María Helena Souza de |
| format |
Tesis |
| author |
Abreu, María Helena Souza de |
| author_sort |
Abreu, María Helena Souza de |
| title |
Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics |
| title_short |
Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics |
| title_full |
Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics |
| title_fullStr |
Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics |
| title_full_unstemmed |
Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics |
| title_sort |
contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics |
| publisher |
CATIE, Turrialba (Costa Rica) |
| publishDate |
2014 |
| url |
https://repositorio.catie.ac.cr/handle/11554/965 |
| work_keys_str_mv |
AT abreumariahelenasouzade contributionoftreestothecontrolofheatstressindairycowsandthefinancialviabilityoflivestockfarmsinhumidtropics |
| _version_ |
1808116291599335424 |