Função do interferon-tau durante o reconhecimento materno da gestação em ruminantes

Antoniazzi, Alfredo Q.; Henkes, Luiz Ernani; Oliveira, João Francisco Coelho de; Hansen, Thomas

doi:10.1590/s0103-84782011000100029

Cited by 1 publication

(1 citation statement)

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“…The period for ruminants to maternally recognize gestation is a complex and crucial moment for embryonic development, related to endocrine, autocrine, and paracrine mechanisms (ANTONIAZZI et al, 2011;NISWENDER et al, 2000). These early days of conception occur in the oviduct, with the arrival of the embryo to the uterine horn, approximately five days after fertilization.…”

Section: Methionine and Its Influences On Reproductionmentioning

confidence: 99%

Rumen-protected methionine in cattle: influences on reproduction, immune response, and productive performance

et al. 2019

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Nowadays, information and knowledge generated about the main ingredients used in cattle diets have enabled greater assertiveness in their formulation. Among the ingredients, amino acids stand out as a promising tool, capable of reducing total crude protein (CP) levels and adjusting optimal metabolizable protein concentrations in diets. Nutritional programs allow diets due to amino acid requirements, providing the opportunity to increase the efficiency of the use of dietary nitrogen, increasing the scarce protein concentrates, maintaining or even boosting performance. This review aimed to present the influences of methionine, in its formulation protected from ruminal degradation, according to reproductive parameters, immune response, and productive performance in cattle. Reproduction-related benefits are linked to the early days of embryonic implantation in the uterine environment, which initially secretes through the histotroph produced by endometrial glands, the nutrients needed to develop the conceptus until implantation, and vascular communication with the mother. Given the immune response, the main results are related to the benefits of innate immunity, with marked increase in phagocytic capacity of neutrophils and monocytes, as well as an important antioxidant effect mediated by methionine products, such as glutathione. When evaluating the influences on productivity, the most evident correlation is the increase in protein in the milk of cows supplemented with methionine. Over the past decade, studies investigating the potential benefits of this strategic supplementation in beef cattle were intensified, expanding the opportunities for the development of new experimental projects.

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Section: Methionine and Its Influences On Reproductionmentioning

confidence: 99%