https://orgprints.org/id/eprint/14381 2010-04-12T07:37:59Z info:eu-repo/semantics/descriptiveMetadata https://orgprints.org/id/eprint/14381/ Vergleich von neuseeländischen und „einheimischen“ Holsteinkühen in erster Laktation unter Vollweide auf einem Biobetrieb Schori, Fredy Münger, Dr. Andreas Dairy cattle Breeding and genetics 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 with 609 kg LW and 147 cm WH. During the first lactation the HNZ gained more body mass (63 kg vs. 24 kg, P < 0.03) and had a higher average body condition score (3.03 vs. 2.77, P < 0.04). The milk production per HNZ was lower by 1000 kg milk (P < 0.004) respectively 800 kg energy-corrected milk (ECM) (P < 0.02). No differences were detected between the two cow types concerning the ECM production per 100 kg metabolic weight. Milk protein and lactose contents were significantly higher for HNZ and milk fat content was not significantly different. The somatic cell counts were similar for both types. Although the adaptation period on farm for HNZ had been short, they produced the same amount of ECM per kg metabolic weight and gained more body mass compared with HCH. 2009 Conference paper, poster, etc. NonPeerReviewed application/pdf de /id/eprint/14381/1/Schori_14381.pdf Schori, Fredy and Münger, Dr. Andreas (2009) Vergleich von neuseeländischen und „einheimischen“ Holsteinkühen in erster Laktation unter Vollweide auf einem Biobetrieb. Paper at: 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009. info:eu-repo/semantics/objectFile info:eu-repo/semantics/humanStartPage