It is very beneficial for farmers to raise lactating dairy cows to increase milk production and obtain good benefits. Lactation period During the period from 15 to 20 days to two months post-partum (high-yielding cattle to three months), milk production can maintain the highest peak in the whole lactation period, and all favorable conditions should be created to make full use of the potential for milk production to sustain the peak. A long time to maintain high production and stable production. The main measure is to raise the standard of feeding 15%~20% and promote the increase of milk production. Generally, it can be effective in 3 to 5 days. If milk production continues to rise, it can be increased by 15% to 20% until the milk production no longer rises. When the peak period is reached, more attention should be paid to the balance of various nutrients. Succeeding in green and juicy feeds, feed 40 to 50 kilograms of barley every day, and feed 4 kilograms of concentrate on this basis, each producing 1 kilogram of milk. , and then feed 0.2 kg of mixed concentrates until 1 to 1.5 kg of fine material per 100 kg of body weight. In hay period, it can feed 7-9 kg of hay, 20-25 kg of silage, 20 kg of carrots and beet. During the peak of lactation, the intake of cows is very large. Attention must be paid to the volume, palatability, and digestibility of the feed, and the diet should be properly matched according to the characteristics of the cow. Pay attention to full drinking water, strengthen breast massage and brush work. Mid lactation From the end of lactation to the end of lactation, this period of time is characterized by a decrease in milk production. The amount of lactation in each month is reduced by about 5% to 7%. However, the feed intake of cows is still large, such as high concentrate volume. Fat deposition and overweight cows affect milk production and reproduction. Therefore, green roughage should be increased at this stage to reduce fine material, increase exercise capacity, provide adequate drinking water, and minimize the rate of decline in lactation.
Laser distance measure is a very convenient
tool for various types of applications in industries, construction and house decoration.
Laser distance meter is a very useful device which gives accurate measurement
of distance, area and volume especially in large areas such as rooms,
apartments, buildings, real estates, factories, warehouses, infrastructures, gardens,
roads, and many other applications requiring accurate results for distance ,
area and volume measurement.
Trade your heavy tape measure for laser
rangefinder, which let you simply take measurements with one hand. No matter
your job, the laser rangefinder will help you measure much farther, with
greater accuracy and in more situations, saving you money and time.
Specification:
Product
Model:
JX40
Accuracy:
±1.5mm (0.06
inch)
Measuring
Unit:
metre/inch/feet
Measuring
Range:
0.03~40m
(0.01 to 131 ft)
Measuring
Time:
0.1~4
seconds
Laser Class:
Class II
Laser Type:
635nm,
<1mW
Waterproof
& Dustproof :
IP54
Auto Laser
Off:
60 seconds
Automatic
Power-off:
480
seconds(8 minutes)
Lighting:
white LED
Datum
Option:
Can choose
Front edge or end piece edge as datum
Battery
Status:
Y
Signal
Strength Display:
Y
LCD display:
2 inch large
screen
Display
illumination and multi-line display:
Max
2 displays
Data Memory:
Y (allow 20
values)
Backlight
display:
Y
Continuous
Measurement:
Y
Min/max
Measurement:
Y
Addition/Subtraction(Distance/Area/Volume):
Y
Area/Volume/Pythagoras
Measurement:
Y
Battery
Type:
AAA alkaline
battery(2*1.5v )
Weight:
about
80g
Dimensions(L*W*H):
4*2*11.5cm
Auto
correction and error report technology:
Y
Operating
Temperature:
0-40 ℃(32-104 ℉ )
Storage
Temperature:
-20~60 ℃
(-4~140 ℉)
Laser Distance Meter,Laser Distance Measure,Laser Rangefinder,Laser Distance Gauge Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancemeter.com