【正文】 有140個，年可向社會供應良種仔豬50萬頭，加上群眾自繁自育部分，省內(nèi)每年可提供良種仔豬700萬頭，僅能滿足需要的50％。不同繁育場各有不同的雜交組合，造成雜交仔豬生產(chǎn)性能參差不齊，嚴重影響了肉豬養(yǎng)殖的經(jīng)濟效益。二、項目建設的必要性項目建設是健全種公豬站建設，加快良種化進程的需要長期以來，我國大部分集約化肉豬養(yǎng)殖場以飼養(yǎng)引進純種瘦肉型豬為主。決定用35年時間，建成榆林現(xiàn)代特色農(nóng)業(yè)示范區(qū)域，樹立現(xiàn)代特色農(nóng)業(yè)發(fā)展的典型樣板，為全省現(xiàn)代農(nóng)業(yè)發(fā)展創(chuàng)造經(jīng)驗。因此在現(xiàn)代化的種豬場開展有計劃的育種工作顯得十分的必要和迫切。可以說，現(xiàn)代豬的育種已經(jīng)不再是某一單項技術的應用，而是遺傳學理論、計算機技術、系統(tǒng)工程和育種學家實踐經(jīng)驗的一個集合。隨著遺傳學理論的發(fā)展，豬的選種由表型選擇發(fā)展到育種值選擇，再到基因型選擇（即標記輔助選擇和基因診斷盒），計算機及網(wǎng)絡技術的飛速發(fā)展和應用，使得性能測定的形式也發(fā)生著巨大的變化?，F(xiàn)在降低背膘厚這一目標已基本實現(xiàn)，二元雜交商品瘦肉型豬胴體瘦肉率為60%左右。 豬育種就是從遺傳上來改良種豬和商品豬，形成新的品種（系），主要包括純種（系）的選育提高，新品種（系）的育成，雜種優(yōu)勢的利用等，從而提高養(yǎng)豬業(yè)的產(chǎn)量和質量。要改變現(xiàn)在這種狀況，必需轉變我們的思想，對我們引進的種豬進行不斷的選擇育種，使其保持優(yōu)秀的生產(chǎn)性能，并按照人們的需要進行選育，提高其產(chǎn)品性能。第二章 項目建設的背景及必要性一、項目建設背景我國是一個養(yǎng)豬大國，在世界養(yǎng)豬生產(chǎn)中占有重要地位，但我們不是養(yǎng)豬強國。十、效益分析項目建成后，PIC祖代原種豬繁育場年存欄祖代母豬600頭，種公豬30頭。九、資金籌措：，其中：申請中央投資150萬元，%；地方配套75萬元, %。其中：；；引種費312萬元；；預備費。 引種引進PIC祖代母豬600頭（其中第一批引進300頭，第二批引進200頭，第三批引進100頭）；引進種公豬30頭。地磅房30㎡；道路硬化9000m2；給水管網(wǎng)1000m；新打機井1眼，出水量40m3/h；新修圍墻2000m，配套電力變壓器1臺；綠化20000㎡。獸醫(yī)室42㎡；淋浴消毒室60㎡。 and the older waiter stops at a coffee bar on his way home—but while the events themselves seem relatively slight, the story as a whole is full of meaning. For a deep understanding of the meaning, we have to look to other elements of the story besides what happens in it: narrative, symbols, tone, the dialogue between the two waiters, the monologue of the older waiter, etc. Evidently the author intends us to pay more attention to the thoughts and feelings of the older waiter, the character whose words echo the author’s voice. One try on the theme may be: “The older waiter understands the old man and sympathizes with his need for a clean, welllighted place.” But here we are still talking about what happens in the story, though we are not第一章 項目摘要一、項目名稱：陜西榆林市畜禽良種繁育場豐潤種豬繁育有限公司種公豬站建設項目二、建設性質：擴建 三、項目建設單位：陜西榆林市豐潤種豬繁育有限公司四、建設地點：陜西省榆林市榆陽區(qū)榆陽鎮(zhèn)劉官寨村五、建設期限：2011年1月2011年12月六、建設規(guī)模該項目引進PIC祖代母豬600頭，公豬30頭，項目建成后，每年可向社會提供PIC父母代種豬6000套，淘汰豬及育肥肉豬8400頭。 Unobvious theme:Obvious theme:Important speeches. Characters talk and in their talk are revealed their judgments of the other characters or event. The characters’ judgments may give important clues to the theme.How the novelist deals with a mon subject. Often the novelist has to include in his work some mon subjects, but if he treats the mon subjects in an unmon way, it shows that he is trying to convey something new or important in the novel. Maybe it is the theme that demands him to do so.all cases) the novelist intends it to tell something important about the novel. Sometimes the central theme of the novel is present in the title. For example, Pride and Prejudice is about Darcy’s pride and Elizabeth Bennet’s prejudice. Main Street is about the life of middleclass people in a Midwestern town.. Think what the title of For Whom the Bell Tolls tells about its theme, and As I lay Dying.The novelist may state or imply the theme. He uses every possible method to convey the theme. Though the theme is based upon the whole novel, practically, we can specify some important areas in which to look for the theme. or platitude like “Beauty is only skindeep.” If one crams every new experience into an old formula, he loses the opportunity of new perception provided by reading novels.Since theme is the central and unifying idea of the novel, it must account for all the major details and must not be contradicted by an details in the novel.The theme is generalization about life based on the novel, and the statement of theme should be true also of other people or life situations. Therefore, names of characters and places should not be mentioned, for they suggest specific things and invite limitations. So in thematic discussion of Wuthering Heights, one may mention “people’s psychology of revenge,” but not “Heathcliff’s.”and the same theme. But it should meet the following requirements.III. Five Requirements for Stating a ThemeA novel is a plicated matter and different readers may have different interpretations of the same novel, so it is incorrect to presume that one novel has only one theme. In some cases, there are several subthemes to the main theme. In reality, some novels are appreciated for their thematic ambiguity. For example, Moby Dick can be interpreted in more ways than one.people discard the novel when they think that they have got the theme. It should be made clear that the novel is not written to convey an idea but to convey an idea artistically. The novel is a work of art whereas the theme is only an abstract idea. An analogy from daily life may help clarify this question. People all need vitamins and get them from various kinds of vegetables and fruits. Only those with deficiency of one kind or another have to take vitamin pills to get the required amount. The difference between the theme and the novel is much like that between the vitamins and the vegetables. The reader sometimes finds that the theme of a novel is similar to or even the same as what he has already known about life and that he is still fascinated by the novel. Theme appeals solely to the intellectual level of reading while the novel as a whole mainly appeals to the emotional level.theme is that each novel has a theme or themes, or theme is important to all novels. In fact, some novels, interesting ones though, do not provide any insight into life. For example, many novels of ratiocination and novels of horror. These novels are aimed at entertaining the reader, not at improving his understanding of life. They may sometimes touch upon the human nature or social problems, but these issues are only used to push the plot forward and they are not mentioned for their own value. Theme exists only in the novel that seriously attempts to reflect life faithfully or intends to reveal truth about life, or in the novels that are based on ideas or theories of life. (for example, novels of ideas).II. Clarification about ThemeOne of the safest ments to make about novels is on the theme. Everyone is entitled to extract a theme based upon his understanding of