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| Thanner, Sophie; Schori, Fredy; Görs, Solvig; Metges, Cornelia; Bruckmaier, Rupert; Dohme-Meier, Frigga. |
| In order to find cows well-adapted to organic production systems, the present study compared the energy expenditure, grass intake, grazing behavior and physical activity of two different Holstein strains in an organic full-time grazing system without concentrate supplementation. Twelve pairs of Swiss (HCH; 613 ± 34 kg BW) and New Zealand Holstein-Friesian (HNZ; 570 ± 54 kg BW) cows in mid lactation were investigated during a 7 d data collection period. The energy expenditure was analyzed using the 13C bicarbonate dilution technique in combination with an automatic blood sampling system during 6h per day. Although HCH and HNZ differed in bodyweight and seize, physical activity and energy expenditure only differed numerically between the two cow strains. As... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle. |
| Ano: 2013 |
URL: http://orgprints.org/21446/1/21446_thanner.pdf |
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| Schori, Fredy. |
| In order to identify the optimum stocking rate for grazing dairy cows in organic farming, grazing experiments were conducted from 2004 to 2006. Cows of one herd were divided into two groups during vegetation periods. The paddocks of the rotational pasture were split in a way that the low stocking rate group (SRL) had 15% more pasture area than the high stocking rate group (SRH). Post grazing sward height for SRH, was decisive for the simultaneous change of the sub-paddocks. Annual stocking rates for SRH were 2.0, 2.3 and 2.3 cows per hectare (ha). In the offered herbage mass for SRL significant lower ash-, CP-, APDE- and APDN values as well as higher NDF values were detected. Sugar- and NEL values were unaffected. No significant differences were found for... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Feeding and growth. |
| Ano: 2008 |
URL: http://orgprints.org/11907/2/Schori_11907_ed.doc |
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| Schori, Fredy; Münger, Dr. Andreas. |
| Cow types adapted to forage-based production systems are of particular interest for organic milk production, because of the limited use of additives (concentrates, pharmaceuticals etc.). The objective of this project was to study the aptitude of New Zealand Holstein cows (HNZ) to produce milk in a pasture-based production system with a shortened calving season (February to mid April) under organic conditions. 11 HNZ were compared 2007 to 11 farm-bred, “Swiss” Holstein cows (HCH), all of them during their first lactation, in a rotational pasture system on the organic farm “l’Abbaye” in Sorens (CH). With an average live weight (LW) at the beginning of 469 kg and a height at withers (WH) of 130 cm the HNZ were considerably smaller compared to HCH... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Breeding and genetics. |
| Ano: 2009 |
URL: http://orgprints.org/14381/1/Schori_14381.pdf |
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