本文選題：蛋雞 + 層疊式籠養(yǎng)��； 參考：《安徽農(nóng)業(yè)大學(xué)》2015年碩士論文

【摘要】：隨著我國(guó)蛋雞規(guī)模養(yǎng)殖標(biāo)準(zhǔn)化水平的不斷提高,雞舍內(nèi)環(huán)境控制成為影響產(chǎn)蛋性能遺傳潛力充分發(fā)揮的重要因素之一。本研究以密閉式八層層疊式籠養(yǎng)蛋雞舍為目標(biāo),對(duì)其夏季高溫環(huán)境和冬季低溫環(huán)境下不同位置的的環(huán)境質(zhì)量參數(shù)(溫度、相對(duì)濕度、CO2濃度、風(fēng)速、PM10、光照強(qiáng)度)進(jìn)行測(cè)定,分析各位置環(huán)境質(zhì)量參數(shù)差異及其相關(guān)性,為進(jìn)一步優(yōu)化規(guī)�；\養(yǎng)蛋雞舍環(huán)境質(zhì)量提供理論依據(jù)。本研究主要測(cè)定分析八層層疊籠養(yǎng)雞舍內(nèi)從濕簾端到風(fēng)機(jī)端,以及不同籠層間各測(cè)定點(diǎn)的環(huán)境參數(shù)。1、濕簾端至風(fēng)機(jī)端。夏季,溫度、CO2濃度、風(fēng)速和PM10測(cè)定值從雞舍濕簾端至風(fēng)機(jī)端逐漸增大,相對(duì)濕度呈遞減趨勢(shì),其中靠近風(fēng)速最低。冬季,溫度、CO2濃度、風(fēng)速、氨氣、TSP、相對(duì)濕度和PM10測(cè)定值從雞舍濕簾端至風(fēng)機(jī)端逐漸增大,其中近濕簾端PM10測(cè)定值顯著低于其他測(cè)定點(diǎn)(P0.05)。2、八層層疊籠不同籠層。夏季,CO2濃度、相對(duì)濕度和PM10濃度測(cè)定值隨著籠層遞增逐漸變大;風(fēng)速呈逐漸減小的趨勢(shì);各層籠溫度分布較均勻;上層測(cè)定點(diǎn)的相對(duì)濕度顯著高于下層;光照強(qiáng)度均以上、下層中部籠層最高,其中下層光照強(qiáng)度高于上層7-11Lx。冬季,溫度、PM10、CO2、氨氣隨著籠層增高濃度逐漸增大,相對(duì)濕度、風(fēng)速呈遞減趨勢(shì)。近濕簾端測(cè)定點(diǎn)溫度顯著低于其他測(cè)定點(diǎn),上層測(cè)定點(diǎn)的相對(duì)濕度低于下層。3、夏季環(huán)境質(zhì)量參數(shù)的相關(guān)性溫度與相對(duì)濕度呈極顯著負(fù)相關(guān)(r=-0.579),與CO2、風(fēng)速、PM10極顯著正相關(guān)(r=0.576、r=0.516、r=0.291);相對(duì)濕度與CO2、風(fēng)速呈極顯著負(fù)相關(guān)(r=-0.194、r=-0.275),CO2與風(fēng)速、極顯著正相關(guān)(r=0.619、r=0.675),風(fēng)速與PM10極顯著正相關(guān)(r=0.240)。4、冬季環(huán)境質(zhì)量參數(shù)的相關(guān)性溫度與CO2、PM10、氨氣、呈極顯著正相關(guān)(r=0.153、r=0.122、r=0.136),與濕度極顯著負(fù)相關(guān)(r=-0.711);濕度與CO2、PM10呈極顯著負(fù)相關(guān)(r=-0.346、r=-0.134)、與風(fēng)速極顯著正相關(guān)(r=0.227)、與氨氣顯著負(fù)相關(guān)(r=-0.088);CO2與風(fēng)速、TSP極顯著負(fù)相關(guān)(r=-0.332、r=-0.115),與氨氣極顯著正相關(guān)(r=0.582);風(fēng)速與PM10、氨氣極顯著負(fù)相關(guān)(r=-0.104、r=-0.170),與TSP顯著正相關(guān)(r=0.121)。綜上,本次試驗(yàn)研究表明八層層疊籠養(yǎng)蛋雞舍舍內(nèi)環(huán)境參數(shù)基本滿足畜禽環(huán)境質(zhì)量標(biāo)準(zhǔn),但是夏季近濕簾端的測(cè)定點(diǎn)相對(duì)濕度偏大,建議調(diào)整環(huán)境控制器參數(shù),降低濕簾水泵開啟時(shí)間,或者開啟次數(shù);光照強(qiáng)度在上、下層中部籠層最高,并且下層光照強(qiáng)度高于上層,建議調(diào)整光源強(qiáng)度,燈泡之間的間距;試驗(yàn)測(cè)得上層過道風(fēng)速較低,建議調(diào)整風(fēng)機(jī)模式,保證上層風(fēng)速。在冬季試驗(yàn)測(cè)定舍內(nèi)溫度平均值達(dá)到20℃以上,但舍內(nèi)不同籠層之間溫度分布不均勻,溫度最低值與最高值之間相差6℃;CO2濃度平均值在2000mg/m3相對(duì)濕度均值在43%左右,相對(duì)濕度偏低;建議在保證溫度的前提下,加大通風(fēng)量。
[Abstract]:In winter , the temperature , CO2 concentration , wind speed , ammonia gas , TSP , relative humidity and PM _ ( 10 ) concentration were measured from the wet curtain end of chicken house to the fan end . The relative humidity and wind speed decreased gradually , and the relative humidity of the lower layer was lower than that of the lower layer . There was a significant negative correlation between the relative humidity and the wind speed ( r = - 0.344 , r = - 0.115 ) , and the relative humidity was positively correlated with the air velocity ( r = - 0.272 , r = - 0.115 ) . The correlation between the wind speed and the wind speed was significantly positive ( r = - 0.344 , r = - 0.115 ) . The relative humidity was negatively correlated with the ammonia gas ( r = - 0.344 , r = - 0.115 ) . The relative humidity was significantly correlated with the ammonia gas ( r = - 0.344 , r = - 0.115 ) . The intensity of the light intensity was higher than that of the upper layer , and the distance between the light source intensity and the bulb was suggested . It is recommended to adjust the fan mode to ensure the upper wind speed . In winter test , the average value of the temperature is above 20 鈩，

本文編號(hào)：1924998