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Tuesday, June 5, 2012

INTRODUCTION: DO I WANT TO BE A DAIRY PRODUCER?"

1: "1.0 INTRODUCTION: DO I WANT TO BE A DAIRY PRODUCER?"


If you already have cattle, and you wish to begin to begin to raise some of them for producing milk, you should consider the following points before you begin to make the changes which will turn them into dairy animals.
1. Why do you have cattle at present? Is it to make money for your living expenses, or do you have cattle only to slaughter for ceremonial purposes. If you have cattle only for ceremonies and you have to do only a little work to get a few calves from them and you like it that way, perhaps dairying is not for you. Dairying certainly requires that you spend additional money on your cattle, and if you are to produce milk successfully, you will be required to spend considerably more time with them than you do now.
2. Why do you want to have dairy Cows? Do you just want milk for your family to drink, or do you want to produce and sell milk for cash. Or is it simply that you like the idea of something different. If you only want a little milk for home consumption, you can probably get this by getting a dairy type of cow and getting her used to being milked, and feeding her a little better and not doing much else. If you want to produce a surplus of milk for sale however, you must be committed to the idea of more work every day and more planning. And you will have to make some financial investment. If you simply like the idea of doing something different, or because you think it will be easy to make money by producing milk, dairying may not be for you.
3. Are you prepared and can you afford to spend additional money on your animals? for example buying better heifers or a breeding bull, improving pastures and putting in extra fences. Are you prepared to milk the cows every day and take care in managing the calves. These are some of the things you must do to produce milk successfully. If you can not or are reluctant to do these things, you should consider very carefully whether you still want to be a dairy farmer.
4. Are you prepared to improve your herd by getting rid of animals which are too old for breeding or are otherwise unproductive? Having dairy cows means that you must have some young, vigorous and relatively highly producing cows. If you have a small area of land and too many animals, you will probably have to reduce the number you have so that the ones you keep are the most productive ones. Or you must get some more land. Surplus males and old females should be disposed of to leave grass and water for the more productive animals you wish to convert to milking cattle. Your ordinary beef and the new dairy animals can not successfully run together. If you have a large amount of land and can put up fences to separate the beef and dairy animals, you should do so. If you cannot, you should probably decide whether you will have beef or dairy cattle. With only a small area of land you probably can not raise both.
5. Are you prepared to build a milking and calf shed for the cows you wish to milk? You
will not be able to produce milk effectively unless you have a shed where the milking can be done, which is weather proof for every-day milking and where new calves can be kept safely.
6. How much land do you have? what condition are your pastures in at the end of the dry season Is it enough for your present cattle all year round, or do the cattle get thin for part of the year and gain weight for the other part of the year. If they get thin for some of the time, there's not enough feed. Dairy cattle will not produce on this much feed. Are the pastures bare or weedy and the cattle thin? If the answer is yes, then you may have too many animals and you must get rid of some, at least until you have established some improved pastures which will support more animals. But if you change your cattle into dairy cows which can produce more milk, you may still not be able to carry the same number of cattle as you do at present, because dairy cattle require more feed than the ordinary beef cattle you presently have.
7. How old are your present animals? How many males and females do you have? Do you have a large number of old cows and bulls, or a large number of castrated males. If you have old cows, they will not be much use for dairying and should be disposed of The same goes for old or surplus bulls which are also unproductive but also prevent you getting control of the breeding and upgrading your herd will need. If you wish to pursue dairying with all of your animals, you must be prepared to sell the old and unproductive animals, and if you are short of grass, you must keep the number of fattening, castrated males to a minimum.
8. Do you have a continuous supply of water for the cows all year round? Milk is nearly all water and dairy cows need more water than cows which don't produce much milk. So if you have a problem with water now, you must solve that problem so that you have enough for milking cows before getting involved in dairying.
9. Does each of your mature cows produce more or less about one cow each year? If your in vestment of money and time in dairying is to be rewarded, all of your cows should be as highly productive as possible. This means that a cow should be having a calf and a lactation about once every year. If you are having a problem with the time between calves for each of your cows now, then you must solve that problem before getting into dairying.
10. Are your cattle local types or have they been upgraded in the past by breeding to a dairy type of bull? If they are improved animals, they can be the immediate basis for a dairy herd. However if they are ordinary beef cattle, they must be upgraded either by selling them and replacing them with dairy animals bought locally, or you must use a dairy bull to produce crossbred dairy heifers. Breeding your own heifers will take at least three years before they will produce milk.
11. Are dairy bulls available to you. Can you afford to buy one? Does anybody in your village or nearby have a dairy bull or some high quality dairy cows if you do not. If there are no dairy bulls available locally or you cannot afford to buy one, improving your animals to dairy producers may be too difficult for you.
12. Do you look after the cattle yourself, or does someone else look after them? Are your helpers reliable and are they prepared to work hard. Successful dairying requires a great deal of time and attention if you are to succeed. It is even more difficult to get hired persons to take the care necessary. If either you or your employees are not willing to work hard and pay attention to the requirements of dairying, you are unlikely to succeed.
13 .Are you and your helpers prepared to keep breeding and production records? Good record keeping, in terms of milk production and reproductive activity, is essential for successful dairying. This means daily record keeping of milk production and regular recording of breeding activity. If you can not do this, your dairying can not be successful.



Farm management


12. DAIRY FARM MANAGEMENT
12.1 Identifying Problems and Constraints
This manual does not attempt to cover every factor of issue which affects farm performance rather we will cover a broad outline of the factors affecting decision making on the farm and examine in some detail some of the major constraints to production and methods of minimising these constraints.
The first question one must ask is: what is wrong with things as they are?· There is only a problem if the farmer wants or needs to improve:
e.g.
-to produce more
-make more money
-get a better return from labour
-comply with a law or local convention
-other personal reason
· If the farmer wishes to improve production, he/she needs to consider firstly how the farm is operating at present:
-what and how much of each product is the farm producing?
-what are the daily activities?
-what amount of land, money and time is involved in producing each product?
-which products are the most profitable?
-how does production of different products inter-relate?
· What are the main factors stopping the farmer from increasing performance? [constraints]
-It may be that one crop uses up all the available supply of some limited resource, such as working capital, water or labour. This crop may be very profitable but if it means that other resources [such as land] can not be fully farmed, say because of a labour shortage, then the farmer may riot be gaining the best benefit from the total farm system.· Through this process of farm assessment the farmer is well placed to make the best decisions regarding changes on the farm,The constraints that we will discuss are those which can most often be minimised through traming in practical farm work techniques [and appropriate technology, farm management and the adoption of improved animal care and management as well as improved forage species, and supplements.
Given training, the farmer can decide how and when to adjust the types and balance of crops, pastures and livestock in the farm system, in order to plan and carry out a programme of development.
More appropriate types of plants and animals can be raised which are not affected by the constraints to production.
12.2 Pasture Management for Dairy Farmers
Good pasture management is one of the most important aspects of successful dairy production. Once an improved grass-legume pasture is established it can remain productive and weed free, providing large amounts of good quality feed for dairy cows, bulls, and young stock for many years. This will occur so long as the person managing the farm follows some simple rules, as follows:

12.2.1 Stocking rate [SR]
Maintaining the appropriate stocking rate is perhaps the most important rule of pasture management. The right stocking rate will vary from farm to farm, depending on;
- soil fertility
- annual rainfall and its distribution
- whether the pasture is shaded or unshaded
- pasture variety (improved Vs unimproved)
- use of fertiliser
- pests and diseases of the pasture
Stocking rate is generally expressed in terms of animal units per hectare. One animal unit is equivalent to one cattle beast weighing 450 kg. Thus an animal of with a liveweight of 600 kg = 1.33 au, whilst one weighing 225 kg = 0.5 au. This is based on the assumption that the daily feed requirement of cattle is a constant percentage of their body weight: 3% of body weight in good quality pasture dry matter. This is not completely accurate as the percentage will vary for different ages of stock and quality of feed and level of production, never the less it is a very valuable yardstick which will allow a farmer or adviser to match demand and supply of feed in such a way as to achieve high desired sustainable production of milk and or beef.
As an example, the average the carrying capacity (SR) of improved (batiki + legume) pastures is;
Open Pastures -2.5 au/ha
Under coconuts -2.0 au/ha
These stocking rates represent the balance at which animal and plant [pasture] production can be sustained.
Assessing the appropriate level of stocking
The farm manager should monitor the feed supply (pasta re) availability of the farm at least twice a week. The purpose of this is to match feed supply (pasture growth) with the needs of the animals. Small fluctuations in feed supply due to short periods without rain can normally be accounted for by a little supplementary feeding with elephant grass or similar. If on the other hand pasture availability is too little or too much, changes in the way the farm is run should be made as soon as possible, as even though it may not be observable, production will be suffering.
If rotational grazing is used, the pasture should be about 30 cm high (mid-calf) when the cows start grazing and about 15 cm high (just above the ankle) when cows are removed. Under set stocking pasture should be of even height, about 15 - 20 cm.
Figure 13 and 14.
PASTURE AT MID CALF HEIGHT PASTURE AT ABOVE ANKLE
HEIGHT
Other indicators of incorrect SR are;1 - more weeds observed in the pasture,- SR is too high.
2 - pasture height uneven , with tall clumps of grass, - SR is too low
What to do if SR is not appropriateToo High?
This can easily happen, because the area grazed is limited but animals tend to grow and multiply.
Action to restore a good feed supply Should be taken urgently as if a milking cow 5 feeding is reduced for any length of time it is very difficult to make up losses in production later. The farmer has two alternatives,
1 - Increase the feed supply by;
a/ using more fertiliser, which should be spread evenly over the whole grazing area. Price and availability varies from country to country, for the most appropriate fertiliser, consult your local extension officer and Agricultural supplier. should be spread evenly over the whole grazing area. This should be repeated every six months. The stocking of the farm should probably not be raised higher than its current level.
b/ practising supplementary feeding or zero grazing, cut and carry grass and legumes are suitable in this case. To allow the pastures to grow back again, as much area as possible should be closed from grazing for about 3 weeks which given rain should allow it time to recover, after this it should be stocked at the appropriate stocking level by the milking cows. The balance of the stock should be held on the rest of the farm, as small an area as possible leaving as much as possible for milk production. Higher than normal levels of supplementary feeding to the dairy cows is also necessary.
2 - Decrease the stocking rate, either by
a/ increasing the total grazed area, i.e. fencing more land or tethering some cattle outside the fenced area, such as roadsides and cropping land which have been harvested. This will effectively decrease the average stocking rate per hectare.
b/ sell some animals. This is a practice that all farmers must consider, particularly those with only small farms. To ensure the best animal health, production and profits from the farm animal numbers must be limited. This also adds to the farmers income through the sale of unneeded, old and unproductive animals.
The Farmer needs to answer these questions
1. What is the main purpose of the farm?
2. Which cattle are necessary to obtain the objective.Sample Answers:
1. The main purpose in this example is to earn income from milk sales.
2. The necessary animals are:
heifer calves
yearling heifers
2 yr heifers
milking cows
bulls - (1 for every 30 cows)
Below is an example of an overstocked situation and how a farm manager can assess the ideal stocking rate and go about adjusting the herd to Suit.
12.2.2 Calculation of Farm Carrying Capacity
A small holder farm of 12 ha, of which:
9 ha pasture tinder 40 year old coconuts
3 ha open pasture
12ha 9@ 2au/ha = 18
3@ 2.5 au/ha = 7.5
25.5 animal units total capacity
Table 3 - Stock on the farm at the start of the exercise
Class of AnimalNo. AnimalLWAu/AnimalAu/Class of Animal
CalvesHeifer41000.220.88
Bull41000.220.88
YearlingHeifer42500.562.24
Steers & bulls32500.561.67
2 yrsHeifer445014.0
Steers & bulls345013.0
3 - 7 yrsMilking cows105001.1111.1
MA steers55001.115.55
MA bulls27001.563.12
Old dryCows345013
TOTAL42 [Animals]35.44 [au]

N.B. MA = Mixed Age

The correct carrying capacity is estimated at 25.5 au therefore the farm is over stocked by 9.9 4 au(35.44-25.5 9.94).
The farmer should therefore consider the best way to reduce the number of animal units carried on the grazed area. (for simplicity we will not include using fertiliser in this example). The 2 main factors mentioned above should be applied in choosing which cattle should go (sold, tethered outside the fence, yard fed or transferred to another farm).Table 4 - Farm herd structure
Class of AnimalNo. AnimalAu/Class
CalvesHeifer51.1
Bull51.1
1 yrHeifer42.24
Bull0
2 yrHeifer44.00
Bull0
Milkingcows1314.43
HerdBulls11.56
1 yrbull10.56
OldCows0
TOTAL24.99

So a farm with about 25.5 au could be structured as follows:This maximises the number of productive animals [milking cows] whilst balancing the stocking rate with the carrying capacity.
Actions taken to make the change were
1. All old non productive cows sold
2. Sale of excess bulls
3. Sale of all bull calves as weaners
4. Sale of one weaner heifer (keep the best)
5. Sale of 3 yrs steers
Sale of 3 2 yrs steers
Sale of 5 mixed age steers
The following increases are made
1. purchase of a 1 year bull (to avoid inbreeding)
2. Increase in milking cows
3. Increase in calves
Table 5. Changes made in restructuring the herd
BeforeAfterDiff.Diff. [au]
CalvesH45+1+0.22
B45+1+0.22
YR 1H4400
B30-3-1.68
YR 2H4400
B30-3-3
MilkingCows1013+3+3.33
MASteers50-5-5.55
HerdBulls21-1-1.56
OldCows30-3-3
YoungBulls01+1+0.56

Net reduction off 10.46 au. (4.33 - 14.79)

By restructuring the herd, the farmer has simplified the operation and been able to increase the number of productive animals i.e. cows by 3.
This will increase the milk production. Production increases as a result of better feeding would be expected to be in the order of:
1. Decrease in calving interval from 540 to 410 days would increase annual calving percentage.
2. Milk production per lactation would increase by approx. 100% or more per cow.
A Note on Pasture ManagementGood pasture management is more important in dairy farming than in beef production. This is because
1. Expenses (and returns) tend to be higher, therefore all aspects of management need to be good to combine to a high level of production.
2. Whilst beef animals are to some extent able to rely on compensatory growth to even out low production of beef caused by periods of poor or low quantity feeding, dairy cows cannot so easily recoup lost milk production, after poor feeding.
Good pasture management is: producing constant large quantities of good quality forage to be converted into useful products by grazing cattle year after year.
12.2.3 Grass-Legume BalanceThe pasture should ideally contain at least 20% legume (leaf) on a DM (dry matter) basis High legume content increases the protein content and per cow intake of the pasture.
High legume content can be encouraged by:
1. planting recommended pasture legumes
2. good management of newly planted pastures/legumes encouraging their spread in the pasture, during the first 12 months especially.
3. strategic heavy grazing in the early wet season to encourage germination of aruinal legumes such as Glenn jointvetch,
4. the use of phosphate fertilisers.
  1. Pasture Growth Stage
The grass tends to be the dominant plant in an improved pasture. Whilst tropical grasses are highly effective at photosynthesis and thus compete well for space and light they tend to be very low in crude protein. Tropical grasses tend to have decreasing levels of protein and as they mature (leaf age). The critical crude protein level is 7% by DM of the diet. Below this feed intake is depressed as the cow can't digest feed quickly enough in turn production is depressed. As an example, batiki is the major pasture grass in Samoa and tends to have a low CP% which falls quickly with leaf age (and increasing stem). Grasses should be kept young and leafy with a short grazing interval.
12.2.5 Rotational GrazingThis type of grazing will allow the farmer to graze the pasture and then leave it to recover. Portable electric fences are an effective, low cost method of controlling the grazing area and daily pasture allocation.
The length (in days) of the rotation may have to vary a little
e.g. Shorter when the grass is tending to seed, this should help to promote vegetative growth.
If conditions are dry, the rotation may have to lengthen a little so that, when the cows enter a new paddock they are offered the same amount of feed i.e. 25-30 cm high. This will mean leaving them on the paddock a little longer and therefore the "residuals' (amount of pasture left) will be less than usual. This is only recommended for a short time and supplements should be increased in this case.
Worm burdens tend be less under rotational than continuous grazing.
12.3 The Use of Fertiliser
It is widely accepted internationally that to achieve high production levels over the long term, fertiliser inputs are necessary. The basic idea being that something is being removed from the agrisystem i.e. coconuts, meat, milk, - then something must be returned i.e. essential nutrients N,P,K,S (+ micro nutrients) otherwise the productive capacity (soil fertility) will decline overtime. Perhaps this is best described as land stewardship: ensuring that you are able to hand the land to your children in at least as good a condition as you received it from your parents.
12.3.1 Maintenance Fertiliser
The principle of maintaining the productive capacity of the land should be followed, fertiliser policies which farmers can apply for pasture development and maintenance in all cattle raising areas need to be prepared, your MAF may be able to advise you on this.
12.3.2 Strategic Use of FertiliserFertiliser can be used to boost pasture plant growth in order to overcome (quickly) problems such as short term feed shortages and weed problems.
Banana fertiliser (NPK: 12-5-20) has been shown (Lee SD 1995) to be highly beneficial in controlling mintweed (H capucita) and navua sedge (K polyphylla) in pastures. Spread at 100kg/ha, the fertiliser boosts batiki grass growth, enabling it to compete more strongly and thus smother (exclude from light) the 2 weed species. Note: Mintweed should be slashed to the ground at the time of fertiliser application. Also the cattle should be excluded from the area for about six weeks to allow the grass to grow.