with the white cells when added to milk from a mastitis infected cow and give it a clotted or jellied appearance.
Some of the commonly used anionic surface active agents which are marketed as proprietary lines and referred to as detergents and wetting agents are suitable for this test if their composition remains constant. However these should only be used if the formulation remains un- changed.
The Department of Agriculture's dairy laboratory in association with the Veter- inary Division has found in trials over the last 12 months t h a t the Calif ornian mastitis test is sensitive and accurate as a screen- ing medium for field use. Some of the proprietary lines of detergents also used have been found satisfactory.
A proprietary field kit has recently become available and the reagents supplied are maintained in a constant form.
When using the Californian mastitis test it should be remembered t h a t a positive reaction can result from a bacterial infec- tion or from physical udder damage.
Therefore it cannot be assumed that because the result is positive, antibiotic treatment is necessary. Remember also that the test does not identify bacterial organisms, so if the infection is of bac- terial origin, veterinary assistance will be needed to decide which antibiotic must be used to treat the infection.
The intelligent use of the Californian mastitis test will be valuable to dairy farmers to alert them early if sub-clinical mastitis is present in the herd.
SIXTH RANDOM SAMPLE LAYING TEST, 1962-63
POULTRY RESEARCH STATION, WEMBLEY
PROGRESSIVE REPORT TO 3rd MARCH. 1963, FOR 10 WEEK LAYING PERIOD FROM 21 WEEKS AND 3 DAYS
N a m e of entry
H a m p t o n s Poultry Stud n . <;. i i o u i t
Mulvra Hatchery H a m p t o n s Poultry Stud T . B . ( o n i o n
Albany Bell Hatchery Austral Hatchery W e x h a m H a t c h e r v B . A. Bell R. H, Hiekaon ....
Radio Hatcherv B. L. Porter Albany Bell Hatchery A. Charlton .... . W. A. Cook
0 . Hu(!son B. Cole
M. Fawkes A Son W . A. Cook K. A. Swannell W. T A flams JT. A. Bell i>. <;. Houit ....
Chalm* r< Hatchery H . Woodard L. T. Angel W e x h a m Hatchery Control
Test Average, excluding Control Breed
W L / A A / W L WL V
S P B W L / A WL A W L / A Wl A WL A W l . A Wl. A W L / A
WL W L / A W L / A W L / A A
"tf
Wl, A WL A SpeedilavW 1. A W L / A W l . \ W L / A
A W L
Aire to reach
5 0 % lay day*
159 162 176 169 172 166 173 16.".
177 170 165 IDS 174 168 1 88 172 l«8 171 170 176 l«.s ISO 16«l 1st;
171 1S7 ISO 198 1 7 0 - 8
H / H Prod.
from 2 1 V , weeks
4 4 9 4 0 - 3 4 0 - 6 3 9 - 2 38-8 38-1 SS-1 3 7 - 8 IS • 3 33 I 39 1 3s 4 34 4 4 0 - 8 3 8 - 3 32 • 11 3 8 0 34 6 33 6 35-2 32 'i 2 9 - 5 31 -4 2 6 - 3 S I - 6 2S-1 2 9 - 9 21 0 3 5 - 4
H / D Prod.
from 2 1 V , weeks
4 6 - 3 4 0 - 8 4 0 - 6 3 9 - 2 3 7 - 7 39-1 33 - s 35 •!) 33 1 4 0 - 2 88 1 34 4 4 0 - 8 38 - 7 32 !l 38 - 4 35 - 0 3S-8 3 5 - 5 33 1 2 9 - 7 32 • 2
29-7
33 -0 2 8 1 3 1 0 2 1 - 3 35 !>
Adult Mortality
from 2 1 ' / , weeks
3 1
2
->
!
i2 1
2 1 1 1 3 3 2 3 7 1
2 4 1-52
F e e d per bird per dav from
2 1 V , w r a n
oz.
3 - 9 4 3 - 9 0 3 • 7S 3 - 7 5 4-OH 8-78
". n
3-71 3 • 76 3-74 a 4- .; M 3 - as 3 - 7 9 4 01 8-84 3 • «3 3-91 3-91 3 •:,:!
3 - 6 3 3 • 50 8-81 3 - 8 7 4 or, 3 - 2 7 3 - 8 2
Average egg weight
oz.
1 74 1-70 1-70 1 • tilt 1 711 1 • 77 1-72 1-63 1-69 1-70 1-60 1 61 1-63 I • a s 1 67 1-73 1-69 1-69 1 70 1 • 88 1 • 75 1-67 1 -72 1 88 1 lis 1 74 1-66 1 - 6 0 1-69
Per cent.
R a t e of lay
for week ended 3 / 3 / 6 3
7 7 - 1 73 • 0 7 6 - 3 7 7 - 7 63 • 0 88 • 4 7 o - 2 77-:>
68 • 3 8 6 - 0 7 4 - 2 7 1 1 7 1 - 5 7 5 0 6 5 - 1 6.-, • 3 (111 -3 5 6 - 5 88 • s 73 1 6 7 - 4 58 2 57 • 1 6 5 - 7 61 1 6 7 - 3 49 5 6 8 - 6
Proflt- Ineomi- Less Peed
Costs from 8
weeks minus
». d.
8 1 5 1 5 1 7 1 7 1 HI 1 11 2 1
•> 2 2 2 2 3 2 3 2 4 2 4 2 « 2 8 2 '.i 2 9 2 11 3 0 3 1 3 I 3 2 3 3 3 11 4 2 4 4 5 3 2 «
380
Journal of Agruculture Vol 4 No 6, 1963
M/GtfTy OUUMJL Off
MEffERS
^VEffERS
M WINDMILL
T h e most economical and efficient mill in
Australia
6-8 GEARING FORCE PUMPS SHEEP TROUGHING SQUATTERS TANKS CULTIVATOR PTS.
TANK STANDS
Modern agricultural equip- ment manufactured in West- ern Australia by Metters . . . For further information write or phone for a free catalogue
SALVADO RD. WEMBLEY Phone 8 2321
Showroom: 847 HAY ST. PERTH
Picas* mention the "Journal of Agriculture of W.A.," when writing to advertisers
Journal of Agruculture Vol 4 No 6, 1963
H, .ERE is the mobile feed mill for on-the-spot feed making. Load ingredients in one by one. The swing auger feeder loads grain into the 507 sq. inch hammer- mill. Toss in baled hay slices. Add concentrates, a few ounces or pounds, into the low concentrate hopper and the Mix-all does the rest. Within 20 minutes, 2 tons of finished feed has been blended with only .00031%
variation. Compare this with commercial mixes.
You can't beat the convenience of grinding and mix- ing yourself; delivering it to the spot where you feed.
And the savings in real money over commercial feed make Mix-all like no other machine in Australia.
GEHL MIX-ALL
The only machine in Australia that grinds, mixes and delivers feed when you want it
—where you want it and for much less than commercial mixes.
// you would like to know more about the Grasslands Gehl Mix-all, fully descriptive literature is available from —
GRASSLANDS Farming Equipment 27 Moojebing Rd., Bayswater, W.A.
Telephone: 79-2179
JttiFITaik.
>e livestock forming systemsk ftmsm of COHULIMTED MLTftL PTODUCT5 LIMITED-
• ! « • • m«ntk>n t hs "Journal of Ag-iculture ol W.A.," whin writing to advertiser
