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Registros recuperados: 4
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A glimpse of the future in animal nutrition science. 1. Past and future challenges R. Bras. Zootec.
Tedeschi,Luis Orlindo; Almeida,Amélia Katiane de; Atzori,Alberto Stanislao; Muir,James Pierre; Fonseca,Mozart Alves; Cannas,Antonello.
ABSTRACT If the world population continues to increase exponentially, wealth and education inequalities might become more pronounced in the developing world. Thus, offering affordable, high-quality protein food to people will become more important and daunting than ever. Past and future challenges will increasingly demand quicker and more innovative and efficient solutions. Animal scientists around the globe currently face many challenging issues: from ensuring food security to prevent excess of nutrient intake by humans, from animal welfare to working with genetic-engineered animals, from carbon footprint to water footprint, and from improved animal nutrition to altering the rumen microbiome. Many of these issues are most likely to continue (or to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Challenges; Issues; Livestock; Ruminant; Production.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000500438
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A nutrition mathematical model to account for dietary supply and requirements of energy and nutrients for domesticated small ruminants: the development and evaluation of the Small Ruminant Nutrition System R. Bras. Zootec.
Tedeschi,Luis Orlindo; Cannas,Antonello; Fox,Danny Gene.
A mechanistic model that predicts nutrient requirements and biological values of feeds for sheep (Cornell Net Carbohydrate and Protein System; CNCPS-S) was expanded to include goats and the name was changed to the Small Ruminant Nutrition System (SRNS). The SRNS uses animal and environmental factors to predict metabolizable energy (ME) and protein, and Ca and P requirements. Requirements for goats in the SRNS are predicted based on the equations developed for CNCPS-S, modified to account for specific requirements of goats, including maintenance, lactation, and pregnancy requirements, and body reserves. Feed biological values are predicted based on carbohydrate and protein fractions and their ruminal fermentation rates, forage, concentrate and liquid...
Tipo: Info:eu-repo/semantics/article
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001300020
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Feeding strategies to design the fatty acid profile of sheep milk and cheese R. Bras. Zootec.
Nudda,Anna; Battacone,Gianni; Boaventura Neto,Oscar; Cannas,Antonello; Francesconi,Ana Helena Dias; Atzori,Alberto Stanislao; Pulina,Giuseppe.
The majority of sheep milk produced in the world is transformed into cheese. Feeding is a major factor affecting the quality of sheep milk and, therefore, of sheep cheese. Because fat is the main compound of cheese, this review gives an update on the effects of feeding and nutrition on milk fat content and deeply discusses feeding strategies aimed at increasing the levels of healthy fatty acids (FA), such as conjugated linoleic acid and omega-3 FA, in milk and cheese in the human diet. In addition, the use of alternative feed resources such as by-products, aromatic plants, and phenolic compounds in the sheep diet and their effects on milk and cheese FA composition are also discussed. Among feeding strategies, grazing and the use of supplements rich in oils...
Tipo: Info:eu-repo/semantics/article Palavras-chave: By-products; Cheese; CLA; Dairy sheep; Milk quality; Nutrition.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800445
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Models for estimating feed intake in small ruminants R. Bras. Zootec.
Pulina,Giuseppe; Avondo,Marcella; Molle,Giovanni; Francesconi,Ana Helena Dias; Atzori,Alberto Stanislao; Cannas,Antonello.
This review deals with the most relevant limits and developments of the modeling of intake of sheep and goats reared intensively and extensively. Because small ruminants are normally fed ad libitum, voluntary feed intake is crucial in feeding tactics and strategies aimed at optimal animal production. The effects of genetic, neuroendocrine, hormonal, feed and environmental factors on voluntary feed intake were discussed. Then, several mathematical models to estimate dry matter intake (DMI) were examined, with emphasis on empirical models for sheep and goats in intensive farm systems or in extensive areas under pasture or rangeland conditions. A sensitivity analysis of four models of prediction of DMI in housed lactating dairy sheep and meat sheep breeds was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dry matter intake; Feedlot; Goats; Grazing; Modeling; Sheep.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000900010
Registros recuperados: 4
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