Song Yunhui, like Professor Liu, also focused on large-scale projects such as synthetic ammonia, and pig feed also involves many disciplines such as nutrition and food science.

"Brother Dongbao, I just realize now that it's really difficult to do something in the countryside!" Song Yunhui didn't understand a little, this is obviously a good thing for both parties, why didn't anyone agree? It is estimated that if it were replaced by a large state-owned enterprise to find cooperation, they would definitely agree immediately, right?

"Hey, it's because the scale of our Xiaolei family is too small, and it doesn't have a reputation." If you change to Dazhai Village and Huaxi Village to seek cooperation, it is estimated that it will not be like this, right?

"But let's not worry, we won't eat hairy pigs without Zhang Butcher, I don't believe it, without a few of them, this thing can't be done!" These have long been expected by Shen Long, and today's college students are all proud of the sky, not to mention these university teachers, there are really few people who can afford to look at village-run enterprises.

"I'll go out, and you'll call everyone in your dormitory in a while, and I'll treat you to a meal!" After speaking, without waiting for Song Yunhui to agree, Shen Long left.

When he came back, he carried a lot of things, including ham sausages, snacks, and Teresa Teng's tapes, lipsticks, etc., and stuffed a few bags full of mess, he distributed ham sausages and snacks to Song Yunhui's roommates Yu Shanqing, Ding Jianguo, and Tian Jiachang, "Thank you for helping take care of Xiaohui." ”

"No, no, although we are a little older than Xiaohui, but in our homework, Xiaohui helps us!" A few people were polite again and again, but in the end, they couldn't resist Shen Long, and accepted it embarrassedly, Yu Shanqing also glanced at the remaining ham sausages, snacks, and those tapes and lipsticks, what are they going to do?

Shen Long didn't let him be curious for long, a few people drank a few cups, and after Song Yunhui told him about the problem he encountered, he revealed the mystery, "I'm thinking, I'm not that difficult subject, those teachers don't want to help, I'll find a few students to help get a few formulas, it shouldn't be difficult, right?" ”

"I don't want them to help in vain, these ham sausages and snacks can be taken back to the dormitory to eat by themselves, and tapes and lipsticks can be given to their girlfriends." At this time, the university does not recommend students to fall in love, but how can so many young girls and young men not talk about it when they get together?

"Hey, you're good at that! This is hard currency in our school! "Yu Shanqing has a lot of ideas and an active brain, and he immediately understands the benefits of Shen Long's doing, most of the current students are not very good in economic conditions, and these things that Shen Long took out are extremely popular hard currency in the university, and they will definitely attract people to come and help.

"I know a few food science students, I'll help you ask!" He immediately offered to help, and Ding Jianguo and Tian Jiachang also hurriedly agreed.

Coupled with Song Yunhui, the four roommates of the 209 dormitory carried things around together, and when they came back, the things in their hands were gone, but there were a few more college students behind them.

"I've been exposed to this subject, but I don't know what kind of pig feed you want? According to the category, it can be divided into full price, concentrate and premix; According to the functional points, it can be divided into piglet feed, sow feed, pig feed and so on; According to the raw materials, it can be divided into bran feed, cake feed, grain feed...... "Zhang Weidong, a senior student with eyes like Song Yunhui, first popularized the knowledge of feed science, and also explained it to them.

The functional division and raw material division can be understood by looking at the literal meaning, and the full-price material refers to the compound composed of protein feed, energy feed, roughage and additives, which is made into granules by the machine, and the pig only eats this.

The concentrate is made of protein raw materials and additives premixed, and energy materials such as corn and pigweed need to be added when feeding; The premix is made of a variety of additives of the same class or a variety of additives of different classes in a certain proportion of homogeneous mixture, and now some pig veterans know that when raising pigs, add some fishmeal and the like, which is the most primitive premix.

"Brother Lei, what kind of feed is your village going to make?" Zhang Weidong asked, there are so many types of feed, if each one comes out with a formula, they can't do it.

"According to my thoughts, it is best to make premix for piglets first, and the full price of the material costs too much, and I am afraid that large state-owned farms cannot afford it, let alone ordinary people." Moreover, the volume of this feed is too large, and the transportation is not convenient, and it will involve the large-scale purchase of corn and other grains after it becomes bigger, which cannot be done at present.

"It's convenient to have a concentrate, but when you say that, the price is certainly not low, and it's more cumbersome to make; The premix is much cheaper, it is not difficult to produce, farmers have used it before, and the acceptance is higher, let's start with this! I'll consider the other two in the future. "As for why we chose to make piglet feed, it is even simpler, piglets are the same every day, and the feed is effective quickly, and farmers are easy to accept.

And now farmers attach great importance to piglets, when they were young, they tried their best to take care of it, for fear that the piglets would not grow well or get sick, and when they grew up, they would be more relieved, so that they could buy pig feed for the pigs, they may not be very willing, but they would be more willing to buy piglets.

"I have studied this subject, generally speaking, the feed formula required for piglets from one to ten kilograms is: corn 60%, wheat bran 10.5%, peanut cake (soybean cake) 15%, domestic fish meal 10%, yeast powder 3%, bone meal 1%, salt 0.5%. This formula contains 3101 kcal per kilogram of digestive energy, 18% crude protein, 2.9% crude fiber, 0.7% calcium, 0.62% phosphorus, 0.79% lysine and 0.7% egg + cystine. For every 100 kg of mixture, 5 grams of copper sulfate, 10 grams of ferrous sulfate, nitrofuracilin, oxytetracycline and multivitamin were added. Zhang Weidong breathed a sigh of relief after hearing this, this matter is not difficult.

"But we also have to take into account the grain production situation in our Jinling County and the preferences of local farmers to feed pigs, we don't produce corn there, and few farmers are willing to use corn to feed pigs; In addition, I think there are a few chemical raw materials that you just mentioned, and I am afraid that they are difficult to find. "It's not enough to have theory, you have to combine it with practice.

"Brother Lei, what you said makes sense, you tell me about the situation in your Jinling County, and I will think about it with a few more classmates." Zhang Weidong pushed his glasses, and I said, these tapes and lipsticks are really not easy to take.

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