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Nielsen, B.; Thamsborg, S.M.. |
Organic beef production in Europe is based on grazing in the summertime and feeding of minimum 60% of roughage during the whole year. Although these recommendations were intended to improve health and welfare several aspects may cause problems in organic beef production systems. This paper gives an overview of welfare, health and product quality in organic beef production with emphasis on organic steer production based on dairy breed bull calves. A short overview of different production systems is given with emphasis on the effect on health, and welfare. Feeding aspects are discussed. Farm studies have shown that organic steer production is based on high amounts of roughages, and only small amounts of cereals are used compared to a conventional production... |
Tipo: Journal paper |
Palavras-chave: Health and welfare. |
Ano: 2005 |
URL: http://orgprints.org/4521/1/4521.pdf |
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Nielsen, B.; Thamsborg, S.M.; Andersen, H.R.; Kristensen, T.. |
The objective of this study was to estimate herbage intake in Danish Friesian and Danish Jersey steers at an age of 8-9 months on ryegrass / white clover pasture. The steers were turned out on pasture in late April and herbage intake was estimated in June in steers of a mean live weight (± S.D.) of 264 ± 14 kg and 185 ± 25 kg for Danish Friesian and Danish Jersey respectively. Faeces and herbage samples were analysed for alkanes to estimate herbage dry matter intake, dry matter digestibility (DMD) and botanical composition of intake. The weight gains at the time of herbage intake estimation in June (kg/day) were 1.142 ± 265 kg/day and 0.927 ± 168 kg/day for Danish Friesian and Danish Jersey respectively. Daily herbage intake (kg dry matter (DM)) estimated... |
Tipo: Journal paper |
Palavras-chave: Production systems; Feeding and growth. |
Ano: 2003 |
URL: http://orgprints.org/1831/1/Herbage_intake.pdf |
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