Fodder and Silage Management for Milch Cattle: Green Feed in Every Month of the Year

Green fodder does things for a milch animal that dry fodder simply cannot. It carries moisture, it carries carotene which the animal converts to vitamin A, it carries digestible fibre that keeps the rumen working steadily, and in the case of legume fodders it carries genuinely useful protein. An animal on plentiful green fodder holds its yield, keeps its coat and skin in condition, comes back into heat on time, and needs less bought concentrate to reach the same litres. The same animal shifted abruptly onto dry straw alone will drop milk within days, and its fat and SNF readings at the collection centre start to wobble.

The trap is what farmers do when green fodder disappears. The shortfall gets covered by buying more concentrate, or by buying green fodder from someone else — and both are the most expensive possible way to buy nutrition, at exactly the time of year when everybody else in the village wants the same thing. A load of green maize in the pre-monsoon weeks costs a multiple of what the same fodder cost the farmer who grew it in the season. Fodder management is not really an agronomy exercise; it is the cheapest cost-control lever a small dairy has.

One boundary worth stating before we go further: this guide is about growing, preserving and supplying fodder. How much of it to feed each animal each day, how to balance roughage against concentrate and mineral mixture, and how water intake affects yield are ration questions, and they are covered separately. Here we are only making sure that when the ration says green fodder, green fodder actually exists in your shed.

The single most useful change in thinking is to stop planning fodder by sowing date and start planning it by cutting window. Take a sheet of paper, write the twelve months down one side, and mark honestly which weeks of the year you currently have green fodder standing and ready to cut. Almost every dairy farmer who does this exercise finds the same two holes: the hot dry weeks before the monsoon breaks, and a shorter gap between the end of the rabi legume cuts and the establishment of the kharif crop. Those holes are where the yield is being lost, and you cannot fix a hole you have not located.

Once the calendar is on paper, staggering becomes obvious. Instead of sowing your whole fodder maize plot in one go, sow it in two or three batches two to three weeks apart. A single large sowing matures all at once: for a week you have far more green fodder than the animals can eat, and after that the crop stands there getting taller, woodier and less digestible while you feed it anyway. Two or three staggered batches turn the same land into a rolling supply of fodder at the right stage.

Then overlap the two families of fodder deliberately. Cereal fodders such as maize, jowar and napier give bulk, energy and dry matter; legume fodders such as berseem, lucerne and cowpea give protein and improve palatability. Having one of each available in the same week lets you feed them as a mix, which suits the rumen far better than either alone and reduces both the concentrate bill and the risk that comes with a pure legume feed. Where land is tight, growing a legume as an intercrop in the maize rows is a way to get both from one plot.

How much land should stay under fodder? Deliberately, this guide gives no per-unit-area figure, because the honest answer is that it depends on your farm and not on a formula. The share of your holding that should sit permanently under green fodder depends on how many animals are actually in milk (dry animals and young stock need far less), on what the rest of the land has to earn for the household, on whether you have wheat or paddy straw of your own to provide the dry portion, on whether irrigation is reliable through summer, and on whether green fodder can be bought locally at a sane price. Work backwards from your calendar instead: if the calendar shows two months with no green fodder, either a perennial fodder block or a silage pit has to fill those two months, and you size that from the number of animals you are actually feeding.

Young sorghum, and sorghum regrowth that has been checked by drought, carries hydrocyanic acid, also called prussic acid or HCN — a genuine poison that can kill an animal quickly. The concentration is highest in young shoots and in stunted, stressed regrowth, and it falls as the plant grows out and matures. So the practical rules are: do not graze or cut jowar when it is very young and short, let it grow out properly first; do not graze regrowth that has been stunted by drought or by a cold spell until it has recovered and grown on; and never turn a hungry animal into a young sorghum plot, because a hungry animal eats fast and eats the tender tips, which is the worst combination. Cutting the crop and letting it wilt before feeding lowers the risk considerably, and so does making it into silage, because the fermentation itself reduces the acid. If your jowar is drought-stressed and you have no other fodder, ask your veterinarian or the nearest KVK before feeding it rather than after.

Berseem, lucerne and other lush legumes carry a different risk: bloat. When an animal fills up quickly on wet, tender, pure legume growth, gas builds up in a stable foam in the rumen that the animal cannot belch out, the left flank swells visibly, breathing becomes distressed, and a badly bloated animal can die within a short time. The prevention is simple discipline. Feed some dry fodder or straw before turning animals onto lush legume so they are not ravenous, mix legume fodder with a cereal fodder or chopped straw rather than feeding it pure, avoid feeding it soaking wet with dew or rain, and increase the quantity gradually over several days when you first bring it into the ration rather than switching overnight.

Both of these are conditions where the time between noticing and losing the animal is short. Learn to recognise them — a jowar-fed animal that suddenly staggers, breathes hard and shows bright red gums, or a legume-fed animal with a swelling left flank — and call your veterinarian immediately rather than trying remedies yourself. Our separate guide on common cattle diseases covers bloat recognition in more detail.

Silage is green fodder that has been chopped and packed airtight so that it pickles instead of rotting. Naturally present lactic acid bacteria feed on the sugars in the green material, produce lactic acid, and drop the acidity to a level at which spoilage organisms can no longer function. The crop is then stable and keeps its green-fodder character — moisture, palatability, much of its feeding value — for months. It is important to understand that this is preservation by fermentation, not by drying: you are not making hay, you are making something closer to a pickle.

That means air is the enemy, and everything in the method exists to remove it. Where oxygen remains trapped in the mass, moulds and yeasts grow instead of lactic bacteria, the material heats up, dry matter is burnt off as waste, and you open the pit to find a spoiled, foul-smelling layer that no animal will touch. Fine chopping, hard packing and an airtight seal are not three separate tips — they are three ways of doing the same one job, which is getting the air out and keeping it out.

Silage suits Indian conditions particularly well for two reasons. First, hay-making needs several consecutive dry, sunny days, which the monsoon simply does not reliably provide; silage does not care about the weather once it is sealed. Second, it maps exactly onto the Indian fodder problem — the kharif season produces more green fodder than the animals can eat, and the pre-monsoon months produce almost none. Silage moves fodder from the first period into the second, which no other technique does as cheaply.

Start with the crop and its stage. Fodder maize is the usual choice, and the stage to harvest it is when the grain has passed the milky stage and reached the dough stage — the cob has filled, but the plant is still green, sweet and moist. There is a reason for that specific window: the fermentation needs sugar and it needs moisture, and a crop cut too green is watery and low in sugar, which gives a sour, seepy silage, while a crop left until it is dry and mature has lost the moisture and no longer packs down, so air stays trapped inside the mass however hard you tread it.

Judge the moisture by hand rather than by any number. Take a handful of the chopped fodder and squeeze it hard. If water runs out between your fingers, it is too wet — let the cut fodder wilt in the field for a few hours before filling. If the ball springs apart the moment you open your hand and your palm is dry, it is too dry — either you cut it late or it has wilted too long. What you want is a ball that holds its shape loosely and leaves your palm just damp.

Chop the fodder fine, in the range of roughly two to three centimetres. This is the step farmers most often skimp on, and it decides everything downstream. Finely chopped material settles into a dense mass with no air pockets between long stems, releases its sugars for the bacteria to work on, and later gets eaten at the manger without the animals sorting out and wasting the coarse pieces. Long, unchopped fodder cannot be packed airtight no matter how much weight you put on it.

Choose the pit or the bag according to the size of your herd. A pit or above-ground bunker suits a larger, permanent operation: site it on high ground so rainwater can never run into it, keep the walls smooth and plastered or lined so no air channels form, and above all plan to fill and seal it in one continuous operation rather than over a week. Bags, drums and small bales suit a household with a few animals: they cost little, they can be moved and stored under a shed, and crucially you open one unit at a time, so a small dairy does not have to expose a whole pit to feed two animals.

Fill in layers and tread each layer down hard — by foot for a small pit, or with a tractor for a large one — because compaction is what expels the air. Overfill the pit into a dome above ground level so that as the mass settles the top still sheds rainwater instead of collecting it. Then seal completely: a plastic sheet with no tears, tucked in at the edges, weighted down with soil, old tyres or a plaster of dung and mud, and checked after rain for water pooling or entering. A pit sealed the same day the fodder was chopped ferments cleanly; a pit left half-open for several days has already started spoiling before it was ever closed.

Additives such as molasses, salt or a commercial bacterial culture come up in every conversation about silage. Be clear about their place: they are optional. They can help with crops that are naturally low in sugar or when the moisture is not ideal, but they will never rescue coarse chopping or a leaky seal, and good chopping plus airtight packing on a well-timed maize crop routinely produces excellent silage with nothing added at all. If you do want to use them, get the quantities from your KVK, your veterinary dispensary or your district milk union rather than from a shopkeeper's estimate. Once sealed, leave the pit undisturbed for roughly six to eight weeks before you open it; the fermentation needs that time to finish and stabilise.

You can judge silage with your nose, eyes and hands before an animal ever sees it. Good silage smells pleasantly sweet-sour, the way a pickle or fresh curd smells, and the smell stays on your hands agreeably rather than offensively. Its colour is greenish-yellow through olive to a light golden brown. Its texture is firm and springy, the chopped pieces are still individually recognisable, and it does not stick together as a slimy mass. Animals that have been introduced to it eat it readily.

Spoiled silage announces itself just as clearly. A sharp rancid smell, a smell like manure or rotten butter, or an ammonia sting in the nose all mean the wrong fermentation took over. Tobacco-brown or blackened material means the mass overheated because air was trapped in it. A slimy, soft, mushy texture that smears between your fingers, or visible white, blue or green mould, means spoilage organisms have grown. Discard mouldy and rotten portions rather than mixing them in to avoid waste — mouldy feed can genuinely make a milch animal sick, and it will also put her off silage entirely.

How you take silage out matters as much as how you put it in. Open one end or one face only, and remove the day's requirement from that face in a clean vertical slice from top to bottom, then re-cover the exposed face immediately. Do not peel the whole top sheet off the pit: everything you expose to air begins to spoil again, and a pit that is opened all over will lose more to secondary spoilage than the animals eat. Take out roughly what will be eaten the same day rather than stockpiling it in the shed. And when you first introduce silage, offer a small quantity mixed with the usual green fodder and increase it over about a week — the smell is new to the animals and some take a few days to accept it.

Silage is the main answer to the summer and pre-monsoon gap, but it is not the only one, and a dairy that leans on three or four sources rides out a bad year better than one that leans on a single pit.

Crop residue is the cheapest bulk you own. Wheat and paddy straw are low in protein and poorly digested, but two simple things make them work much harder. Chopping straw before feeding raises how much the animal actually eats and sharply cuts what gets trampled and wasted at the manger. And treating straw with a urea-and-molasses solution — sprayed over the straw as it is stacked in layers, then covered airtight for a few weeks so the urea breaks down the tough bonds in the straw and raises its nitrogen — genuinely improves both digestibility and feeding value. Understand the principle, but get the mixing rate from your veterinary dispensary, KVK or district milk union rather than guessing, because too much urea is dangerous to animals, and never feed urea-treated straw to young calves.

Tree fodder is the source most farmers already have and under-use. Fodder trees on bunds and field boundaries stay green through exactly the months when field fodder has finished, they need no seasonal sowing, and their leaves are often notably richer in minerals than field fodder. Our guide Tree Fodder for Livestock: The Free Mineral Feed Growing on Your Farm goes into which species are worth planting, how to lop them without killing them, and which need to be fed in moderation. Farmers with a pond or a tank have another option in our guide Duckweed as Livestock and Poultry Feed: Free Protein Growing on Your Pond, which grows on standing water in the hot months when nothing on the land is growing.

Finally, look at the money honestly. Fodder bought in the lean season is bought in a seller's market: the price per load is highest in exactly the weeks when every dairy in the area is short, and it lands as cash outgo at a time when yields are already down. Every kilogram of green fodder you preserve when it was abundant and nearly free is a kilogram you do not buy at that peak price. That arbitrage — work in the surplus season instead of cash in the lean season — is the actual return on a silage pit, and it is why a fodder calendar deserves as much of your planning as your main cash crop does.

Pulled together, a well-run fodder year looks like this. Map your twelve months and mark the weeks where green fodder is genuinely missing. Keep a perennial block — hybrid napier, or lucerne where the land allows — as the backbone that produces without resowing. Stagger your seasonal sowings in batches two to three weeks apart so that cuts roll rather than pile up, and keep a cereal and a legume fodder overlapping so you can feed them mixed. Handle young or stressed jowar with respect, and never turn a hungry animal onto lush berseem. In the kharif surplus, chop the excess maize fine at the dough stage, pack it airtight in a pit or in bags, seal it the same day, and leave it alone for six to eight weeks. In the lean months, feed from one face of that pit, back it up with chopped and treated straw and with tree fodder, and stay out of the fodder market.

Some of the specifics worth confirming locally: which fodder varieties and which napier or CO-series clone actually perform in your district, whether your state animal husbandry or dairy department is running silage demonstrations or making chaff cutters and silage bags available, and what your district milk union advises for your particular herd. These recommendations differ from state to state and are revised from time to time, so treat your KVK, the local veterinary dispensary, the district animal husbandry office and your dairy cooperative society as the authority on the numbers, and this guide as the explanation of why they matter.