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| Leiber, Florian; Dorn, Katharina; Probst, Johanna K.; Isensee, Anne; Ackermann, Nick; Kuhn, Anton; Spengler Neff, Anet. |
| An experiment was conducted during 6 weeks to evaluate effects of a reduced dietary level of protein-rich concentrates in a moderate dairy production system on cows’ performance, protein efficiency and milk quality including fatty acid profiles. Twenty-three lactating cows (Swiss Fleckvieh) were assigned either to a group receiving on average 2·4 kg/d individually fed concentrates (Prot+, n = 12) or to a group receiving no individually fed concentrates (Prot−, n = 11). All cows had adlibitum access to a total mixed ration (TMR) mainly based on grass and maize silage, hay and little potatoes and soybean cake. In weeks 4–6 of the experiment, part of the hay was excluded from the TMR, and fed separately in the morning. Individual feed intake and milk yield... |
| Tipo: Journal paper |
Palavras-chave: Feeding and growth. |
| Ano: 2015 |
URL: http://orgprints.org/29214/1/Leiber_etal_JDR_2015.pdf |
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| Dorn, Katharina; Leiber, Florian; Holinger, Mirjam; Sundrum, Albert; Mayer, P.; Walkenhorst, Dr. Michael. |
| On 25 Swiss and German organic dairy farms all fresh cows (a total of 283 cows between 5 and 50 days in milk) were tested weekly for blood- -hydroxybutyrate (BBHB), 121 exceeded the threshold of 1.0 mmol/l BBHB. A total of 84 cows were randomly assigned to three treatments which were given daily, diluted in 700ml fluid divided to two oral administrations for 4 days: placebo (PL), 240g sodium propionate per day (SP) and 240g sodium propionate combined with an extract of seven herbs (27g drug equivalent). Milk acetone (MAC) and BBHB were observed during the administration period and thereafter, in total for two weeks. A reduction of ketone bodies was measured in all three treatment groups. No significant differences between SP and PL arose regarding the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/31819/1/Die%20Kombination%20von%20Kr%C3%A4uterextrakten%20mit%20Propions%C3%A4ure.pdf |
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| Leiber, Florian; Holinger, Mirjam; Zehner, Nils; Dorn, Katharina; Probst, Johanna K.; Spengler Neff, Anet. |
| Chewing behaviour of 23 lactating Swiss Fleckvieh cows was analysed in order to evaluate the predictivepotential for quantitative dry matter intake in a roughage-based indoor cattle feeding system. Cowswere fed total mixed rations (TMR) based on silages and hay with different concentrate supplements.They were kept in a tie stall enabling individual feed intake measurements. Two measurements wereconducted within one month. Chewing behaviour was recorded with RumiWatch®sensor collars, basedon pressure tubes in the collar’s noseband. Cows were equipped with collars for 96 h per measurementperiod. First 24 h were accounted as adaptation time; data of the subsequent 72 h were used for analysis.Data included ruminating, eating (min/day), rumination boli (n per... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Feeding and growth. |
| Ano: 2016 |
URL: http://orgprints.org/30865/1/Leiber_etal_APPLAN_2016.pdf |
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