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提高人工授精受精率技术要点

加入时间:2008-8-22 9:54:06    来源:本网采编

人工授精作为现代家禽业的一项技术,对提高受精率,减少种蛋污染,充分利用种公鸡,提高种鸡场的经济效益起着非常重要的作用。我场几年来采用人工授精技术,在实践中摸索,不断总结经验,使种蛋受精率由原来的85%提高到93%,甚至更高。现将人工授精技术要点介绍如下。

1,保证种鸡的营养需要:种鸡的营养水平很重要,如果营养摄入量不足或营养不平衡,受精率很难提高。足量营养供给,合理的营养调配是培育合格的后备鸡群和保证种鸡高受精率的基础。

2,人工授精前应注意的要点: (1)器具的清洗及消毒:集精杯、滴头等先用0.1%的新洁尔灭或0.1%的百毒杀浸泡,待刷洗用清水冲净后再用蒸馏水荡涤数次,然后放入消毒盒中加蒸馏水煮沸15分钟,晾干或烘干备用。 (2)公鸡的训练:经选择留种的公鸡单独饲养至24周左右便可进行按摩训练。训练前应剪去公鸡泄殖腔周围的羽毛,使裸露区直径约5厘米并剪短两侧鞍羽,便于以后采精操作和收集精液。经过数次按摩调教,使公鸡对保定、按摩、采精过程形成条件反射。公鸡的保定、按摩、采精人员要固定。(3)人工授精前2~3小时停料及控制饮水。

3,采精时应注意的要点:(1)采精人员应相对固定:因为不同的采精人员采精手势、用力程度的不同对公鸡的刺激及引起的兴奋程度不同,采精量差异较大。另外,公鸡的性反射有快慢,如果采精人员不熟悉每一只公鸡的性反射特性,容易造成反应快的公鸡精液流失。(2)采精人员的采精动作要迅速,采精手势要正确。 (3)采精时应以一只公鸡一个集精杯,防止个别公鸡在采精时排出尿液或粪便污染精液,造成浪费。(4)注意公鸡的合理利用。一般采精2~3天应休息一天。

4,人工授精时应注意的要点:(1)输精量和输精部位的确定:一般采用原精液,以0.025~0.05毫升为宜。对于首次输精或相当一段时间没有输精的鸡群,首次输精量加大或连续两天输精可提高种鸡的受精率。最佳输精部位为输精深度2~3厘米处,太深或太浅效果均不佳。(2)翻肛人员在向腹部方向施加压力时,用力不要过大以防止将输卵管内的蛋压破,造成输卵管和腹腔炎症。翻肛时,如果生殖道内有硬壳蛋不要强行挤出,因为产蛋过程是鸡的生理机制,不到产蛋时间强行挤出硬壳蛋,肛门收缩肌松弛,阴道口不能收缩复原,易造成鸡脱肛和死亡率增加。对于生殖道内有硬壳蛋的鸡应剔出单独存放,待产蛋过后重新输精。(3)输精人员插入输精器时,动作要轻,以防止输精器吸嘴刺破输卵管壁。(4)输精要及时。根据我们的实践和有关资料报道以5天为一个周期最佳。(5)采出的精液一般应在半小时内输完,输精应在下午3:00以后进行,避开产蛋高峰期。

5,用肉眼观察精液的颜色、稠度、污染情况和采精量。正常精液呈乳白色或稍发黄,混有血液呈红色,被粪便污染的精液呈褐色,被尿液污染的呈白色棉絮状,以上的污染精液均不能作输精用。

总之,人工授精是一项艰苦而细致的工作,不仅要有过硬的技术,而且还要有高度的责任心,具备如上条件一般都能获得满意的受精率。


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i1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0EiPiZuYnNwOyg8L3NwYW4+PHNwYW4gc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQTsgbXNvLWFzY2lpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWhhbnNpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWJpZGktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nIj7vvJM8L3NwYW4+PHNwYW4gbGFuZz0iRU4tVVMiIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tZmFyZWFzdC1mb250LWZhbWlseTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQSI+Ke6XpTwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPumHh+eyvuaXtuW6lOS7peS4gOWPquWFrOm4oeS4gOS4qumbhueyvuadr++8jOmYsuatouS4quWIq+WFrOm4oeWcqOmHh+eyvuaXtuaOkuWHuuWwv+a2suaIlueyquS+v+axoeafk+eyvua2su+8jOmAoOaIkOa1qui0ueOAgjwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj4oPC9zcGFuPjxzcGFuIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0E7IG1zby1hc2NpaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1oYW5zaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1iaWRpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJyI+77yUPC9zcGFuPjxzcGFuIGxhbmc9IkVOLVVTIiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWZhcmVhc3QtZm9udC1mYW1pbHk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0EiPik8L3NwYW4+PHNwYW4gc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQTsgbXNvLWFzY2lpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWhhbnNpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWJpZGktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nIj7ms6jmhI/lhazpuKHnmoTlkIjnkIbliKnnlKjjgILkuIDoiKzph4fnsr7vvJLvvZ7vvJPlpKnlupTkvJHmga/kuIDlpKnjgII8L3NwYW4+PHNwYW4gbGFuZz0iRU4tVVMiIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tZmFyZWFzdC1mb250LWZhbWlseTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQSI+PGJyIC8+DQombmJzcDsmbmJzcDsmbmJzcDs8L3NwYW4+PHNwYW4gc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQTsgbXNvLWFzY2lpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWhhbnNpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWJpZGktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nIj7vvJQ8L3NwYW4+PHNwYW4gbGFuZz0iRU4tVVMiIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tZmFyZWFzdC1mb250LWZhbWlseTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQSI+LDwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPuS6uuW3peaOiOeyvuaXtuW6lOazqOaEj+eahOimgeeCuTwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj46KDwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPu+8kTwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj4p7pelPC9zcGFuPjxzcGFuIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0E7IG1zby1hc2NpaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1oYW5zaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1iaWRpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJyI+6L6T57K+6YeP5ZKM6L6T57K+6YOo5L2N55qE56Gu5a6a77ya5LiA6Iis6YeH55So5Y6f57K+5ray77yM5Lul77yQPC9zcGFuPjxzcGFuIGxhbmc9IkVOLVVTIiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWZhcmVhc3QtZm9udC1mYW1pbHk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0EiPi48L3NwYW4+PHNwYW4gc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQTsgbXNvLWFzY2lpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWhhbnNpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWJpZGktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nIj7vvJDvvJLvvJXvvZ7vvJA8L3NwYW4+PHNwYW4gbGFuZz0iRU4tVVMiIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tZmFyZWFzdC1mb250LWZhbWlseTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQSI+Ljwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPu+8kO+8leavq+WNh+S4uuWunOOAguWvueS6jummluasoei+k+eyvuaIluebuOW9k+S4gOauteaXtumXtOayoeaciei+k+eyvueahOm4oee+pO+8jOmmluasoei+k+eyvumHj+WKoOWkp+aIlui/nue7reS4pOWkqei+k+eyvuWPr+aPkOmrmOenjem4oeeahOWPl+eyvueOh+OAguacgOS9s+i+k+eyvumDqOS9jeS4uui+k+eyvua3seW6pu+8ku+9nu+8k+WOmOexs+WkhO+8jOWkqua3seaIluWkqua1heaViOaenOWdh+S4jeS9s+OAgjwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj4oPC9zcGFuPjxzcGFuIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0E7IG1zby1hc2NpaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1oYW5zaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1iaWRpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJyI+77ySPC9zcGFuPjxzcGFuIGxhbmc9IkVOLVVTIiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWZhcmVhc3QtZm9udC1mYW1pbHk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0EiPinul6U8L3NwYW4+PHNwYW4gc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQTsgbXNvLWFzY2lpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWhhbnNpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWJpZGktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nIj7nv7vogpvkurrlkZjlnKjlkJHohbnpg6jmlrnlkJHmlr3liqDljovlipvml7bvvIznlKjlipvkuI3opoHov4flpKfku6XpmLLmraLlsIbovpPljbXnrqHlhoXnmoTom4vljovnoLTvvIzpgKDmiJDovpPljbXnrqHlkozohbnohZTngo7nl4fjgILnv7vogpvml7bvvIzlpoLmnpznlJ/mrpbpgZPlhoXmnInnoazlo7Pom4vkuI3opoHlvLrooYzmjKTlh7rvvIzlm6DkuLrkuqfom4vov4fnqIvmmK/puKHnmoTnlJ/nkIbmnLrliLbvvIzkuI3liLDkuqfom4vml7bpl7TlvLrooYzmjKTlh7rnoazlo7Pom4vvvIzogpvpl6jmlLbnvKnogozmnb7lvJvvvIzpmLTpgZPlj6PkuI3og73mlLbnvKnlpI3ljp/vvIzmmJPpgKDmiJDpuKHohLHogpvlkozmrbvkuqHnjoflop7liqDjgILlr7nkuo7nlJ/mrpbpgZPlhoXmnInnoazlo7Pom4vnmoTpuKHlupTliZTlh7rljZXni6zlrZjmlL7vvIzlvoXkuqfom4vov4flkI7ph43mlrDovpPnsr7jgII8L3NwYW4+PHNwYW4gbGFuZz0iRU4tVVMiIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tZmFyZWFzdC1mb250LWZhbWlseTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQSI+KDwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPu+8kzwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj4p7pelPC9zcGFuPjxzcGFuIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0E7IG1zby1hc2NpaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1oYW5zaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1iaWRpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJyI+6L6T57K+5Lq65ZGY5o+S5YWl6L6T57K+5Zmo5pe277yM5Yqo5L2c6KaB6L2777yM5Lul6Ziy5q2i6L6T57K+5Zmo5ZC45Zi05Yi656C06L6T5Y21566h5aOB44CCPC9zcGFuPjxzcGFuIGxhbmc9IkVOLVVTIiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWZhcmVhc3QtZm9udC1mYW1pbHk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0EiPig8L3NwYW4+PHNwYW4gc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQTsgbXNvLWFzY2lpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWhhbnNpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWJpZGktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nIj7vvJQ8L3NwYW4+PHNwYW4gbGFuZz0iRU4tVVMiIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tZmFyZWFzdC1mb250LWZhbWlseTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQSI+Ke6XpTwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPui+k+eyvuimgeWPiuaXtuOAguagueaNruaIkeS7rOeahOWunui3teWSjOacieWFs+i1hOaWmeaKpemBk+S7pe+8leWkqeS4uuS4gOS4quWRqOacn+acgOS9s+OAgjwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj4oPC9zcGFuPjxzcGFuIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0E7IG1zby1hc2NpaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1oYW5zaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1iaWRpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJyI+77yVPC9zcGFuPjxzcGFuIGxhbmc9IkVOLVVTIiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWZhcmVhc3QtZm9udC1mYW1pbHk6IOWui+S9kzsgbXNvLWZvbnQta2VybmluZzogMS4wcHQ7IG1zby1hbnNpLWxhbmd1YWdlOiBFTi1VUzsgbXNvLWZhcmVhc3QtbGFuZ3VhZ2U6IFpILUNOOyBtc28tYmlkaS1sYW5ndWFnZTogQVItU0EiPinul6U8L3NwYW4+PHNwYW4gc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQTsgbXNvLWFzY2lpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWhhbnNpLWZvbnQtZmFtaWx5OiAnVGltZXMgTmV3IFJvbWFuJzsgbXNvLWJpZGktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nIj7ph4flh7rnmoTnsr7mtrLkuIDoiKzlupTlnKjljYrlsI/ml7blhoXovpPlrozvvIzovpPnsr7lupTlnKjkuIvljYjvvJPvvJrvvJDvvJDku6XlkI7ov5vooYzvvIzpgb/lvIDkuqfom4vpq5jls7DmnJ/jgII8L3NwYW4+PHNwYW4gbGFuZz0iRU4tVVMiIHN0eWxlPSJGT05ULVNJWkU6IDExLjVwdDsgRk9OVC1GQU1JTFk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tZmFyZWFzdC1mb250LWZhbWlseTog5a6L5L2TOyBtc28tZm9udC1rZXJuaW5nOiAxLjBwdDsgbXNvLWFuc2ktbGFuZ3VhZ2U6IEVOLVVTOyBtc28tZmFyZWFzdC1sYW5ndWFnZTogWkgtQ047IG1zby1iaWRpLWxhbmd1YWdlOiBBUi1TQSI+PGJyIC8+DQombmJzcDsmbmJzcDsmbmJzcDs1LDwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPueUqOiCieecvOinguWvn+eyvua2sueahOminOiJsuOAgeeooOW6puOAgeaxoeafk+aDheWGteWSjOmHh+eyvumHj+OAguato+W4uOeyvua2suWRiOS5s+eZveiJsuaIlueojeWPkem7hO+8jOa3t+acieihgOa2suWRiOe6ouiJsu+8jOiiq+eyquS+v+axoeafk+eahOeyvua2suWRiOikkOiJsu+8jOiiq+Wwv+a2suaxoeafk+eahOWRiOeZveiJsuajiee1rueKtu+8jOS7peS4iueahOaxoeafk+eyvua2suWdh+S4jeiDveS9nOi+k+eyvueUqOOAgjwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj48YnIgLz4NCiZuYnNwOyZuYnNwOyZuYnNwOzwvc3Bhbj48c3BhbiBzdHlsZT0iRk9OVC1TSVpFOiAxMS41cHQ7IEZPTlQtRkFNSUxZOiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBOyBtc28tYXNjaWktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28taGFuc2ktZm9udC1mYW1pbHk6ICdUaW1lcyBOZXcgUm9tYW4nOyBtc28tYmlkaS1mb250LWZhbWlseTogJ1RpbWVzIE5ldyBSb21hbiciPuaAu+S5i++8jOS6uuW3peaOiOeyvuaYr+S4gOmhueiJsOiLpuiAjOe7huiHtOeahOW3peS9nO+8jOS4jeS7heimgeaciei/h+ehrOeahOaKgOacr++8jOiAjOS4lOi/mOimgeaciemrmOW6pueahOi0o+S7u+W/g++8jOWFt+Wkh+WmguS4iuadoeS7tuS4gOiIrOmDveiDveiOt+W+l+a7oeaEj+eahOWPl+eyvueOh+OAgjwvc3Bhbj48c3BhbiBsYW5nPSJFTi1VUyIgc3R5bGU9IkZPTlQtU0laRTogMTEuNXB0OyBGT05ULUZBTUlMWTogJ1RpbWVzIE5ldyBSb21hbic7IG1zby1mYXJlYXN0LWZvbnQtZmFtaWx5OiDlrovkvZM7IG1zby1mb250LWtlcm5pbmc6IDEuMHB0OyBtc28tYW5zaS1sYW5ndWFnZTogRU4tVVM7IG1zby1mYXJlYXN0LWxhbmd1YWdlOiBaSC1DTjsgbXNvLWJpZGktbGFuZ3VhZ2U6IEFSLVNBIj4mbmJzcDs8L3NwYW4+ZGQ=" 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当前位置:饲养技术 -> 稳产蛋鸡管理

提高人工授精受精率的技术要点

加入时间:2008-8-22 9:54:06    来源:本网采编
 人工授精作为现代家禽业的一项技术,对提高受精率,减少种蛋污染,充分利用种公鸡,提高种鸡场的经济效益起着非常重要的作用。我场几年来采用人工授精技术,在实践中摸索,不断总结经验,使种蛋受精率由原来的85%提高到93%,甚至更高。现将人工授精技术要点介绍如下。 
   
,保证种鸡的营养需要:种鸡的营养水平很重要,如果营养摄入量不足或营养不平衡,受精率很难提高。足量营养供给,合理的营养调配是培育合格的后备鸡群和保证种鸡高受精率的基础。
   
,人工授精前应注意的要点: ()器具的清洗及消毒:集精杯、滴头等先用0.1%的新洁尔灭或0.1%的百毒杀浸泡,待刷洗用清水冲净后再用蒸馏水荡涤数次,然后放入消毒盒中加蒸馏水煮沸15分钟,晾干或烘干备用。 ()公鸡的训练:经选择留种的公鸡单独饲养至24周左右便可进行按摩训练。训练前应剪去公鸡泄殖腔周围的羽毛,使裸露区直径约5厘米并剪短两侧鞍羽,便于以后采精操作和收集精液。经过数次按摩调教,使公鸡对保定、按摩、采精过程形成条件反射。公鸡的保定、按摩、采精人员要固定。()人工授精前2~3小时停料及控制饮水。
   
,采精时应注意的要点:()采精人员应相对固定:因为不同的采精人员采精手势、用力程度的不同对公鸡的刺激及引起的兴奋程度不同,采精量差异较大。另外,公鸡的性反射有快慢,如果采精人员不熟悉每一只公鸡的性反射特性,容易造成反应快的公鸡精液流失。()采精人员的采精动作要迅速,采精手势要正确。 ()采精时应以一只公鸡一个集精杯,防止个别公鸡在采精时排出尿液或粪便污染精液,造成浪费。()注意公鸡的合理利用。一般采精2~3天应休息一天。
   
,人工授精时应注意的要点:()输精量和输精部位的确定:一般采用原精液,以0.025~0.05毫升为宜。对于首次输精或相当一段时间没有输精的鸡群,首次输精量加大或连续两天输精可提高种鸡的受精率。最佳输精部位为输精深度2~3厘米处,太深或太浅效果均不佳。()翻肛人员在向腹部方向施加压力时,用力不要过大以防止将输卵管内的蛋压破,造成输卵管和腹腔炎症。翻肛时,如果生殖道内有硬壳蛋不要强行挤出,因为产蛋过程是鸡的生理机制,不到产蛋时间强行挤出硬壳蛋,肛门收缩肌松弛,阴道口不能收缩复原,易造成鸡脱肛和死亡率增加。对于生殖道内有硬壳蛋的鸡应剔出单独存放,待产蛋过后重新输精。()输精人员插入输精器时,动作要轻,以防止输精器吸嘴刺破输卵管壁。()输精要及时。根据我们的实践和有关资料报道以5天为一个周期最佳。()采出的精液一般应在半小时内输完,输精应在下午3:00以后进行,避开产蛋高峰期。
   5,
用肉眼观察精液的颜色、稠度、污染情况和采精量。正常精液呈乳白色或稍发黄,混有血液呈红色,被粪便污染的精液呈褐色,被尿液污染的呈白色棉絮状,以上的污染精液均不能作输精用。
   
总之,人工授精是一项艰苦而细致的工作,不仅要有过硬的技术,而且还要有高度的责任心,具备如上条件一般都能获得满意的受精率。 

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