836 resultados para Vaca mestiça leiteira


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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Genética e Melhoramento Animal - FCAV

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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If cinema is an essentially urban means of expression, the fruit of technique and industry, can a film narrator express in a film’s esthetics a caipira’s « Weltanschauung » (world vision or philosophy) ? We suggest, agreeing with Benjamin – who considers that narrative is the best expression of manual and traditional work’s time– that the story related by the film A proteção de Santo António constitutes a cinematographic narrative which can be classified as caipira. Tenderly called by the audiences Santo António e a vaca, this film was supported by a large part of the population for its making, which allowed to fill in the lack of technical and financial resources. Here, we defend the idea that the visible traces of this work in this particular film, turns it into a real filmic narrative and also into a sincere tribute to caipira culture.

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Peripartum or Transition Period is, generally, defined as the period between three weeks pre-calving and three weeks after calving. It is a critical and crucial stage to the cow’s health and to economic profitability during the lactation. During this phase the cows experience several changes that prepare them to calve and milk yield. These changes contribute to metabolic disorders’ incidence, and can lead to reproductive function and milk yield reduction, and increase the herd’s disposal. This paper aimed to review the peripartum metabolic diseases, which includes Ketosis, Hypocalcemia, Hepatic Steatosis, Ruminal Acidosis and Lameness

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The dairy sector has undergone considerable economic losses due to low fertility rates due to adverse effects of heat stress on reproduction of cows. Genetic selection for increased production, coupled with the expanding dairy to tropical areas of the planet, and global warming has further aggravated the problem of heat stress. The effects of heat stress are multifactorial and act directly or indirectly at various levels of reproductive tissues, resulting in low fertility of cows, which in practice, results in reduced reproductive efficiency in the property, reducing the producers’ profit. Some strategies related to breeding biotechnology such as fixed-time artificial insemination, embryo transfer and use of BST, can minimize these effects and improve the reproductive efficiency of the herd