【摘要】：本試驗(yàn)采集了保育(60±3)d、肥育(170±5)d和妊娠(妊娠70±4)d三個(gè)階段的梅山豬新鮮豬糞各10份,比較三個(gè)階段豬糞的好氧與厭氧反硝化菌數(shù)量以及糞樣的理化性質(zhì)。結(jié)果表明,保育豬豬糞中好氧反硝化菌和厭氧反硝化菌的數(shù)量均顯著高于肥育豬豬糞(P0.05),與妊娠母豬豬糞差異不顯著(P0.05);豬糞中的凱氏氮、硝酸氮、銨態(tài)氮含量、碳氮比和異戊酸含量以保育豬最高,肥育豬次之,妊娠母豬最低(P0.05);糞中的有機(jī)質(zhì)和戊酸含量則以肥育豬豬糞最高,保育豬豬糞次之,妊娠母豬最低(P0.05)。相關(guān)性結(jié)果顯示:豬糞中好氧反硝化菌數(shù)量?jī)H與有機(jī)質(zhì)含量呈顯著負(fù)相關(guān)(P0.05),與pH、凱氏氮及碳氮比無(wú)相關(guān)性(P0.05);厭氧反硝化菌與豬糞中各項(xiàng)理化指標(biāo)均無(wú)相關(guān)性(P0.05)。
[Abstract]:In this experiment, 10 fresh pig dung samples were collected from Meishan pig in three stages of conservation (60 鹵3) d, fattening (170 鹵5) d and gestation (70 鹵4) d respectively. The aerobic and anaerobic denitrifying bacteria (aerobic) and anaerobic denitrifying bacteria (ASN) and the physicochemical properties of feces were compared in the three stages. The results showed that the number of aerobic denitrifying bacteria and anaerobic denitrifying bacteria in pig manure was significantly higher than that in fattened pig manure (P0.05), but not significantly different from that of pregnant sows (P0.05), and the contents of Kjeldahl nitrogen, nitrate nitrogen, ammonium nitrogen in pig manure were significantly higher than those in fattening pig manure (P0.05). C / N ratio and isovaleric acid content was the highest in conservation pigs, followed by fattening pigs, and the lowest in pregnant sows (P0.05); the content of organic matter and valerate in feces was the highest in fattening pig dung, followed by conservation of pig manure, and the lowest in pregnant sows (P0.05). The results showed that the number of aerobic denitrifying bacteria in pig manure was only negatively correlated with organic matter content (P0.05), but had no correlation with pH, Kjeldahl nitrogen and carbon nitrogen ratio (P0.05), while there was no correlation between anaerobic denitrifying bacteria and physical and chemical indexes in pig manure (P0.05).
【作者單位】： 南京農(nóng)業(yè)大學(xué)動(dòng)物科技學(xué)院;上海市農(nóng)業(yè)科學(xué)院畜牧獸醫(yī)研究所;
【基金】：國(guó)家自然基金青年科學(xué)基金項(xiàng)目(31201835) 上海市市級(jí)農(nóng)口系統(tǒng)青年人才成長(zhǎng)計(jì)劃滬農(nóng)青字(2015)第1-38號(hào)
【分類(lèi)號(hào)】：S828

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 王方貴;;防治豬亞硝酸鹽中毒[J];甘肅畜牧獸醫(yī);1985年05期

，

本文編號(hào)：2192832