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Additives and feedstuffs in dairy cattle nutrition
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Abstract Restricted suckling of cows by their dams is a characteristic of dual purpose systems extensively used in Tropical America. Suckled milk constitutes the main feed during the first weeks of life and is slowly replaced by solid feed until weaning. The applicability of the National Research Council (NRC) feeding standards in these conditions was evaluated using the information obtained in five experiments where feed intake and animal response were known. The results showed...
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A realistic home-grown alternative to imported protein sources has taken a step closer, thanks to an on-going five-year project being carried out as part of the Department for Environment, Food and Rural Affairs Sustainable Arable LINK Scheme.
The Lupins in Sustainable Agriculture (LISA) Project is the first comprehensive evaluation of the benefits of spring-sown yellow and blue lupins for organic and conventional use in the United Kingdom.
"Lupins have attracted interest before as a...
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Due to rising oil prices and a greater awareness of the limited supply of fossil fuels, the latest reports in 2006 suggest that ethanol production is increasing rapidly – by as much as 16% and rising. In the United States, the White House aims to have ethanol “cost-competitive by 2012, offering the potential to displace up to 30% of the Nation's current fuel use.” This means that of the 250 million tons of corn that the U.S. produces annually, 140 million tons will be destined for ethanol...
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INTERPRETIVE SUMMARY Corn and alfalfa are among the forages most commonly fed to lactating dairycows because of agronomical, nutritional and economical reasons. Large dairyfarms are increasingly feeding corn silage as their main forage source. In thisstudy, cows fed mixtures of corn silage and alfalfa silage had higher feed intakeand milk production compared to cows offered corn silage as the only sourceof forage, or offered corn silage with low-quality alfalfa...
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A feed supplement for dairy calves has been developed by the US Agricultural Research Service (ARS), which it claims will help lower stress levels during transportation – a costly problem for the dairy industry which can adversely affect milk yields, Tom Armitage reports.
Stressed livestock costs producers millions of dollars each year and research has proved that healthy, happier cattle are often those which have the fewest food safety problems.
Dairy heifers, for instance, can produce...
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