Impacto económico da diarreia neonatal em explorações extensivas de bovinos de carne no concelho de Moura
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2014
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O tema abordado na minha dissertação incide sobre o impacto económico que a diarreia neonatal bovina tem em explorações extensivas de produção de bovinos de carne no concelho de Moura. A diarreia neonatal é uma doença multifactorial que envolve o animal, o ambiente, a nutrição e os agentes infecciosos, leva à perda anual de animais e, consequentemente, causa perdas económicas relevantes às explorações.
Este trabalho de investigação consistiu em analisar as despesas de tratamento e outras associadas à diarreia neonatal bovina e calcular o impacto que estas têm no lucro das explorações.
Para tal, foi realizado um inquérito a produtores de quatro explorações extensivas de gado bovino de aptidão de carne no concelho de Moura, de forma a obter dados de natalidade, de morbilidade e de mortalidade de vitelos de cada exploração, e ainda dos custos económicos relativos à produção, nomeadamente nutrição dos animais, mão-de-obra, valor de mercado dos vitelos, entre outros. Foi obtida uma amostra de 79 vitelos afetados por diarreia neonatal, pertencentes a uma população de 412 vitelos, dos quais se determinaram as taxas de natalidade, morbilidade e mortalidade.
A taxa de natalidade nas quatro explorações foi bastante variável, nomeadamente 31% (n=150) na Exploração A, 94% (n=100) na Exploração B, 40% (n=6) na Exploração C e 100% (n=102) na Exploração D. A taxa de morbilidade variou entre 4% e 32%, tendo sido mais baixa na Exploração B e mais elevada na Exploração A. A taxa de mortalidade variou entre 1% (n=1) e 10% (n=6), tendo sido mais baixa na Exploração D e mais elevada na Exploração C. Os custos de tratamento da diarreia neonatal nas quatro explorações variaram desde cerca de 130€ na Exploração B a mais de 1200€ na Exploração A, contribuindo para perdas económicas nas explorações de entre 2% e 8%, nos anos de 2012 e 2013, respectivamente.
Deste modo, concluiu-se que o impacto económico provocado pela diarreia neonatal pode ser bastante significativo na economia das explorações extensivas de bovinos de carne do concelho de Moura.
The topic of my dissertation is focused on the economic impact that bovine neonatal diarrhea has in extensive production of beef cattle farms, in the municipality of Moura, Portugal. Neonatal diarrhea is multifactorial, involving the animal, environment, nutrition and infectious agents, leading to the loss of animals, and consequently causing significant economic losses to the farms. This research aimed to analyze the treatment costs and other losses associated to bovine neonatal diarrhea, and also calculate the impact that these have on profit of farms. A survey was done to four producers of beef cattle extensive farms in the municipality of Moura, in order to obtain data related to natality, calf morbidity and mortality, and also economical costs related to production, namely animal nutrition, labor, market value of the calves, and others. A sample of 79 calves affected with diarrhea was obtained from a population of 412 born animals, and birth rates and morbidity and mortality rates were calculated. The birth rate in the four farms was quite variable, namely 31% in the Exploration A, 94% in the Exploration B, 40% in Exploration C and 100% in the Exploration D. The morbidity rate varied between 4% and 32%, having been lower in Exploration B and higher in Exploration A. The mortality rate ranging from 1% to 10%, and was lower at Exploration D and higher at Exploration C. The cost of treatment of diarrhea in neonatal farm ranged from about four 130 € in the Exploration B to more than € 1.200 in Exploration A, contributing to economic losses on holdings of between 2% and 8% in the years 2012 and 2013. Therefore, it was concluded that the impact caused by neonatal diarrhea can be very significant in the economy of beef cattle farms in the municipality of Moura.
The topic of my dissertation is focused on the economic impact that bovine neonatal diarrhea has in extensive production of beef cattle farms, in the municipality of Moura, Portugal. Neonatal diarrhea is multifactorial, involving the animal, environment, nutrition and infectious agents, leading to the loss of animals, and consequently causing significant economic losses to the farms. This research aimed to analyze the treatment costs and other losses associated to bovine neonatal diarrhea, and also calculate the impact that these have on profit of farms. A survey was done to four producers of beef cattle extensive farms in the municipality of Moura, in order to obtain data related to natality, calf morbidity and mortality, and also economical costs related to production, namely animal nutrition, labor, market value of the calves, and others. A sample of 79 calves affected with diarrhea was obtained from a population of 412 born animals, and birth rates and morbidity and mortality rates were calculated. The birth rate in the four farms was quite variable, namely 31% in the Exploration A, 94% in the Exploration B, 40% in Exploration C and 100% in the Exploration D. The morbidity rate varied between 4% and 32%, having been lower in Exploration B and higher in Exploration A. The mortality rate ranging from 1% to 10%, and was lower at Exploration D and higher at Exploration C. The cost of treatment of diarrhea in neonatal farm ranged from about four 130 € in the Exploration B to more than € 1.200 in Exploration A, contributing to economic losses on holdings of between 2% and 8% in the years 2012 and 2013. Therefore, it was concluded that the impact caused by neonatal diarrhea can be very significant in the economy of beef cattle farms in the municipality of Moura.
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Orientação : Ângela
Dâmaso; co-orientação: Carlos Silva; responsabilidade externa: Alberto Fernandes
Palavras-chave
VETERINÁRIA, MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, NEONATOLOGIA VETERINÁRIA, BOVÍDEOS, MORBILIDADE, MORTALIDADE, IMPACTO ECONÓMICO, PORTUGAL, MOURA, VETERINARY NEONATOLOGY, DIARRHOEA, BOVIDS, MORBIDITY, MORTALITY, ECONOMIC IMPACT, PORTUGAL, MOURA, DOENÇAS DO SISTEMA DIGESTIVO, DIGESTIVE SYSTEM DISEASES, DIARREIA, MEDICINA VETERINÁRIA, VETERINARY MEDICINE, ANIMAIS DE TALHO, MEAT ANIMALS