15万头年优质肉牛饲养屠宰深加工技改工程可行性研究报告(编辑修改稿)

15万头年优质肉牛饲养屠宰深加工技改工程可行性研究报告(编辑修改稿)内容摘要：

In addi ti on, frui t, vegetabl es and other food grown wi th chem i cal ferti li zers usual y grow too fast to be ful l of m uch nutri ti on. They m ay l ook beauti ful , but i nsi de there is usual ly m ore water than vitamins and mi neral s. With these discoveri es, some farmers and many custom ers are begi nning to turn to anic farmi ng. O rgani c farming is si mply farmi ng wi thout usi ng any chemical s. They focus on keepi ng their soi l ri ch and free of disease. A healthy soil reduces disease and hel ps crops grow strong and heal thy. O rgani c farm ers, therefore, often prefer usi ng natural waste from anim al s as fertil izer. They feel that thi s makes the soi l in thei r fiel ds richer i n mi neral s and so m ore fertil e. This al so keeps the ai r, soil , water and crops free from chemi cal s. O rgani c farmers also use m any other methods to keep the soil fertil e. They often change the knd of crop in each fiel d every few years, for exampl e, growi ng corn or wheat and then the next year peas or soybeans. Crops such as peas or soybeans put i mportant minerals back into the soil , making it ready for crops such as wheat or corn that need ri ch and ferti l e soi l . O rgani c farm ers al so pl ant crops to use di fferent l evel s of soi l , for exam pl e, pl anti ng peanuts that use the ground‟s surface fol l owed by vegetabl es that put down deep roots. Som e ani c farm ers prefer pl anti ng grass between crops to prevent wi nd or water from carryi ng away the soi l , and then l eavi ng i t i n the ground to be e it‟s to col d. ” The m an l aughed. “My nam e i s Sim on and I am Inuit,” he sai d. “I think i t‟s too far north here for holi days but m ore and m ore touri sts are i ng. They l ike i ce fi shi ng and photographi ng pol ar bears. I star as far away from pol ar bears as possi bl e. I li ke m y warm ofi ce and my warm house. ” “I‟m busi ness m an. My grandfather woul d l i ve i n i ce houses when he hunted i n wi nter, but not so m any peopl e do that now. the ol d m en used to m ake one i n a few hours. They used to li ve i n ski n tents i n sum mer – the tents were easy to m ove so the peopl e coul d fol ow the ani mal s. ” A few mi nutes l ater they arri ved i n Iqal ui t, a town wi th a popul ati on of 6000, on Si mon‟s snowm obi l e. It was two o‟cl ock i n the afternoon, but i t was al ready dark, and al the houses shone wi th bri ght l i ghts. Beth sai d, “ Why i s i t so dark? It‟s the mi ddl e of the day!” Si mon repli ed, “It‟s dark i n the day because we are so far north. You shoul d e in June. The sun shi nes al ni ght i n the north then. That39。 s why i t‟s cal ed „The Land of the Mi dni ght Sun‟. ” There were peopl e on the streets and snowmobil es everywhere. There were even a few dog team s. 必修四 Uni t 1 A STUDEN T O F AFRICAN WILDLIFE It is 5:45 am and the sun is just rising over Gombe National park in east Africa. Fol lowing Jane‟s way of studying chimps,our group are al l goi ng to vi si t them in the forest. Jane has studi ed these fami li es of chim ps for m any years and hel ped peopl e understand how m uch they behave li ke hum ans. Watchi ng a fami lyof chim ps waki ng up i s our fi rst acti vity of the day. Thi s m eans goi ng back to the pl ace where we l eft the fami ly sl eepi ng i n a tree the ni ght before. Everybody si ts and wai ts i n the shade of the trees whil e the famil y begi ns to wake up and m ove off. Then we fol ow as they wonder i nto the of the tim e, chim ps ei ther fed or cl ean each other as a way of showi ng l ove i n their fami l y. Jane worns us that our grou i s goi ng tobe very ti red and dirty by the afternoon and she i s ri owever, the eveni ng makes i t al worthwhil e. We watch the m other chi mpand her babi es pl ay i n the tree. Then we see them go to sl eep together i n thei r nest for the ni ght. We real i ze that the bond between m em bers of a chim p fam il y i s as strong as i n a human fami l y. N obody before Jane ful y understood chim p behavi our. She spent years observi ng and recording thei r dai l y acti viti es. Since her chi l dhood she had wanted to work wi th anim al s i n their own envi ronm owever, this was not easy. When she fi rst arri ved i n Gom be i n 1960, i t was unusual for a wom an to l ive i n a forest. O nl y after her mother cam e to hel pher for the fi rst few m onths was she al owed to begi n her er work changed the way peopl e thi nk of chi m ps. For exam pl e, one i m portant thi ng she di scovered was that chim ps hunt and eat m eat. Unti l then every thought chim ps onl y eat frui t and nuts. She al so discovered how chim ps muni cate wi th each other, and her study of thei r body language helped her work out thei r social system. For forty years Jane Goodal l has beenoutspoken about m aking the rest of the worl d understand and respect the l ife of these anim als. She has argued that ani mal s shoul d be l eft i n the wil d and not used for entertainm ent or adverti sements. She has hel ped to set up speci al pl aces where the can li ve safel y. She i s l eadi ng a busy l i fe but she says: “Once I stop,i t al es crowdi ng i n and I rem em ber the chim ps in l aboratori es. It’s teri bl affacts m e when I watch the wi l d chi m ps. I say to m ysel f,’Aren’t they l ucky?’And then I thi nk about sm al chim ps i n cages though they have done nothi ng you have seen that you can never fet…“ She has achieved everything she wanted to do:working with animals in their own environment,gaining a doctor‟s degree and showi ng that wom en can li ve i n the forest as m en can. She i nspi res those who want to cheer the achi evem ents of wom en. WH Y NOT CARRY ON H ER WORK? I enjyed Engli sh , bi ol ogy, and chemi stry at school , but whi ch one shoul d I choose to study at universi ty ?i di d not know the answer unti l one eveni ng when I sat down at the puter to do som e research on great wom en of Chi na. By。