System fitness of grazeable forages for large herds in automatic milking system.
Modelling pasture-based automatic milking system herds: grazeable forage options.
Modelling pasture-based automatic milking system herds: system fitness of grazeable home-grown forages, land areas and walking distances.
Effect of herd sizes, pasture utilisation (P) and rates of grazeable complementary forage rotation (CFR) use on walking distances (from parlour to paddock [distance, km] and total walking distance in km in a day), energy loss due to grazing and walking, milking frequency (MF) and milking interval (MI) Herd size P (t CFR SR Area Distance MF (n) DM/ha) (%) (cow/ha) (ha) (km) (no.
However, the greatest impact of introducing grazeable CFS in the large herd AMS farming system can occur by increasing the consumption of HGF, which could significantly improve farm profitability.
Overall, our results showed that neither pasture nor CFS would allow large AMS herds (600 or 800 cows) to be grazed within 1-km distance of the dairy if 50% of the diet was to be generated through grazeable feed although increased proportion of CFS decreased land area requirements and hence maximum and average walking distances.
Farm areas and stocking rate of cows required for different herd sizes managed in moderate and high pasture utilisation system with different rates of grazeable complementary forage rotation (CFR) in automatic milking system Pasture CFR Stocking Farm areas % home grown feed utilisation (%) rate required (ha) produced on farm (cow/ha) (1) Herd size (n) Herd size (n) 400 600 800 400 600 800 Moderate 0 4.
3 t DM/ha grazeable forages respectively for 10 October, 20 October, 20 November and 20 December sowing treatments (Table 5).
Total grazeable simulated yields from soybean-based rotations were 22.
As a consequence of the limited number of simulated grazings of sorghum (particularly in late sowings) combined with the late sowing of forage rape-ryegrass, total simulated grazeable forage yields were 19.
There were two common features of grazeable forage supplies in all rotations.