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Found 5 essays matching the above criteria.

1. 1. The digesta passage rate among dairy cows with different abilities to consume large quantities of roughage : its impact on the milk production, and the reliability of the chemical fibre marker

   University essay from SLU/Dept. of Animal Nutrition and Management

   Author : Maria Elisabeth Eklund; [2020]
   Keywords : chemical markers; chromium; chromium mordanted fibre; cobalt; concen-trate level; EDTA; iNDF; mean re-tention time; ethylenediaminetetraacetic acid; forage consumption; indigestible neutral detergent fibre; liquid digesta phase; MRT; rumen evacuation; sol;

   Abstract : The objectives of the present master thesis were to investigate the passage rate among lactating Holstein and Swedish red dairy cows to investigate the hypotheses of: 1) The cows’ individual total mean retention time (TMRT) has a negative relationship to the cows’ individual forage intake capacity. 2) A reduced TMRT contributes to a reduced feed efficiency, but a higher milk yield. READ MORE

3. 2. Utfodring med kompakt fullfoder : effekter på mjölkkors beteende, tidsbudget och mjölkproduktion

   University essay from SLU/Dept. of Animal Nutrition and Management

   Author : Ulrica Robertsson; [2018]
   Keywords : sociala interaktioner; välfärd; konkurrens; vila; ättid; ståendetid; sortering; partikelstorlek; torrsubstans; mjölkavkastning; foderberedning;

   Abstract : Kompakt fullfoder (C-TMR) är ett nytt sätt att blanda fullfoder. Vid foderberedningen blandas kraftfoder och vatten med avsikt att göra foderblandningen homogen så att korna inte kan sortera ut enskilda foderpartiklar. READ MORE

4. 3. Blandfoder eller separat utfodring till mjölkkor i AMS med fri kotrafik

   University essay from SLU/Dept. of Animal Nutrition and Management

   Author : Hanna Driscoll; [2017]
   Keywords : foderintag; mjölkavkastning; mjölkningsfrekvens; automatisk mjölkning; grovfoderkonsumtion;

   Abstract : The aim of the study was to compare two feeding strategies, partial mixed ration (PMR) and separate feeding (SR) of grass/clover silage and concentrate, and find out how feed intake, milking frequency and milk production was affected when the cows were milked in an automatic milking system (AMS) with free cow traffic. The study included 38 cows in early to mid lactation divided into two groups fed PMR or SR and lasted for ten weeks. READ MORE

5. 4. Effects of omitting one udder quarter at one single milking : on milk production and SCC in mid and late lactating cows with or without re-sorting for a second milking

   University essay from SLU/Dept. of Animal Nutrition and Management

   Author : Roger Nilsson; [2016]
   Keywords : överhoppad mjölkning; mittlaktation; sen laktation; celler; juverhälsa; mjölkmängd; mjölkkomposition; laktos; protein; fett; Omitted milking; mid lactation; late lactation; somatic cell count; udder health; milk yield; milk composition; lactose; protein; fat;

   Abstract : The aim of this study was to investigate if one single omitted milking on one udder quarter with or without re-sorting affects milk yield and udder health in cows in mid or late lactation. The study was carried out in an automatic milking rotary (AMR). READ MORE

6. 5. Hög förekomst av antibiotikaresistens hos Escherichia coli i tarmflora hos unga kalvar : en följd av ökad urskiljning av resistenta E. coli från kon vid tiden för kalvning?

   University essay from SLU/Dept. of Clinical Sciences

   Author : Lisa Gustafsson; [2014]
   Keywords : Antibiotikaresistens; Escherichia coli; Mjölkkor; Tetracyklin; Kalvar;

   Abstract : Utveckling av antibiotikaresistens är ett problem som innebär ett stort hot mot folk- och djurhälsa. Resistensläget i Sverige övervakas kontinuerligt genom ett samarbete mellan Smittskyddsinstitutet, SMI och Statens Veterinärmedicinska Anstalt, SVA. READ MORE