【正文】 有140個(gè)，年可向社會(huì)供應(yīng)良種仔豬50萬(wàn)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(wàn)頭，僅能滿足需要的50％。不同繁育場(chǎng)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(yán)重影響了肉豬養(yǎng)殖的經(jīng)濟(jì)效益。二、項(xiàng)目建設(shè)的必要性項(xiàng)目建設(shè)是健全種公豬站建設(shè)，加快良種化進(jìn)程的需要長(zhǎng)期以來(lái)，我國(guó)大部分集約化肉豬養(yǎng)殖場(chǎng)以飼養(yǎng)引進(jìn)純種瘦肉型豬為主。決定用35年時(shí)間，建成榆林現(xiàn)代特色農(nóng)業(yè)示范區(qū)域，樹(shù)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(yàn)。因此在現(xiàn)代化的種豬場(chǎng)開(kāi)展有計(jì)劃的育種工作顯得十分的必要和迫切?？梢哉f(shuō)，現(xiàn)代豬的育種已經(jīng)不再是某一單項(xiàng)技術(shù)的應(yīng)用，而是遺傳學(xué)理論、計(jì)算機(jī)技術(shù)、系統(tǒng)工程和育種學(xué)家實(shí)踐經(jīng)驗(yàn)的一個(gè)集合。隨著遺傳學(xué)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(biāo)記輔助選擇和基因診斷盒），計(jì)算機(jī)及網(wǎng)絡(luò)技術(shù)的飛速發(fā)展和應(yīng)用，使得性能測(cè)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(biāo)已基本實(shí)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(lái)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(shì)的利用等，從而提高養(yǎng)豬業(yè)的產(chǎn)量和質(zhì)量。要改變現(xiàn)在這種狀況，必需轉(zhuǎn)變我們的思想，對(duì)我們引進(jìn)的種豬進(jìn)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(jìn)行選育，提高其產(chǎn)品性能。第二章 項(xiàng)目建設(shè)的背景及必要性一、項(xiàng)目建設(shè)背景我國(guó)是一個(gè)養(yǎng)豬大國(guó)，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(qiáng)國(guó)。十、效益分析項(xiàng)目建成后，PIC祖代原種豬繁育場(chǎng)年存欄祖代母豬600頭，種公豬30頭。九、資金籌措：，其中：申請(qǐng)中央投資150萬(wàn)元，%；地方配套75萬(wàn)元, %。其中：；；引種費(fèi)312萬(wàn)元；；預(yù)備費(fèi)。 引種 引進(jìn)PIC祖代母豬600頭（其中第一批引進(jìn)300頭，第二批引進(jìn)200頭，第三批引進(jìn)100頭）；引進(jìn)種公豬30頭。地磅房30㎡；道路硬化9000m2；給水管網(wǎng)1000m；新打機(jī)井1眼，出水量40m3/h；新修圍墻2000m，配套電力變壓器1臺(tái)；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(xiàng)目摘要一、項(xiàng)目名稱：陜西榆林市畜禽良種繁育場(chǎng)豐潤(rùn)種豬繁育有限公司種公豬站建設(shè)項(xiàng)目二、建設(shè)性質(zhì)：擴(kuò)建 三、項(xiàng)目建設(shè)單位：陜西榆林市豐潤(rùn)種豬繁育有限公司四、建設(shè)地點(diǎn)：陜西省榆林市榆陽(yáng)區(qū)榆陽(yáng)鎮(zhèn)劉官寨村五、建設(shè)期限：2011年1月2011年12月六、建設(shè)規(guī)模該項(xiàng)目引進(jìn)PIC祖代母豬600頭，公豬30頭，項(xiàng)目建成后，每年可向社會(huì)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 understandin