scholarly journals Invited review: Reduced milking frequency: Milk production and management implications

2013 ◽  
Vol 96 (6) ◽  
pp. 3401-3413 ◽  
Author(s):  
K. Stelwagen ◽  
C.V.C. Phyn ◽  
S.R. Davis ◽  
J. Guinard-Flament ◽  
D. Pomiès ◽  
...  
2013 ◽  
Vol 91 (1) ◽  
pp. 446-454 ◽  
Author(s):  
N. Prieto ◽  
R. Bodas ◽  
Ó. López-Campos ◽  
S. Andrés ◽  
S. López ◽  
...  

2006 ◽  
Vol 89 (5) ◽  
pp. 1478-1487 ◽  
Author(s):  
J. Patton ◽  
D.A. Kenny ◽  
J.F. Mee ◽  
F.P. O’Mara ◽  
D.C. Wathes ◽  
...  

2001 ◽  
Vol 39 (2) ◽  
pp. 181-187 ◽  
Author(s):  
J.A Negrão ◽  
P.G Marnet ◽  
J Labussière

1988 ◽  
Vol 39 (6) ◽  
pp. 1163 ◽  
Author(s):  
SR Davis ◽  
GA Hughson

Serial measurements of udder volume in 11 multiparous and 4 primiparous Jersey cows in mid-lactation were used to establish the time of cessation of milk production after a period of milk accumulation. Udder volume was determined from measurements of udder height, length and width. Functional udder capacity (defined as the litres of contained milk in the udder when milk secretion ceased) was greater in cows (15.5 � 0.8 litres) than heifers (9.3 � 0.7 litres). Expressed as hours-worth of secretion, on average, heifers possessed 25.9 � 1.5 and cows 33.6 � 2.9 hours-worth of capacity - data which indicate some potential for reduction in milking frequency without loss of production. Functional udder capacity (l.) was correlated with empty udder volume (tissue volume), and was greater in cows showing high residual milk volumes. The data show that once functional capacity is reached the shut down in milk secretion is rapid, occurring over a 2-4 h period, the rate of accumulation of secretion being constant up to this time.


2010 ◽  
Vol 50 (10) ◽  
pp. 939 ◽  
Author(s):  
R. H. Donohue ◽  
K. L. Kerrisk ◽  
S. C. Garcia ◽  
D. A. Dickeson ◽  
P. C. Thomson

The adaptation success of inexperienced heifers to a pasture-based automated milking system (AMS) is likely to influence the viability and feasibility of the system. This study evaluated two heifer training programs designed to improve adaptation success to determine their impact on early lactation performance within a pasture-based AMS. The two training programs involved heifers calving in spring 2007 (S07) and autumn 2008 (A08) being managed as members of the milking herd for 2 weeks, starting 2 months before their expected calving date. In each calving season, heifers were randomised into two treatment groups with one being fed and teat sprayed (FTS) while visiting the milking stations, while the other group passed through (PT) the milking stations. Milk yield, milking frequency and waiting time were selected as indicators of early lactation performance within an AMS and were reported as values relative to those measured by their experienced herdmates (within calving season). Longer relative waiting times (hours spent in pre-milking area where experienced herdmates = 1.0; FTS: 1.36 vs PT: 1.95; P = 0.006) may have been one cause of the low relative milk production levels reported (range 0.49 S07PT–0.78 A08PT). The milking frequencies of the heifers were in line with their experienced herdmates (range 0.83 S07PT–1.10 A08PT). There were no significant differences between the two training programs, indicating that farmers could adopt either program and expect similar early lactation heifer performance. The choice of program would more likely be affected by AMS utilisation levels, costs of consumables (teat spray and concentrate feed) and any existing desire to feed concentrate to heifers during the training period.


Sign in / Sign up

Export Citation Format

Share Document