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中国畜牧杂志
|遗传育种
2026
, 62
(2) :
247
-251
藏羊及其杂交后代生长发育模型分析
全屏
莫负涛1,2 , 李发弟3 , 石红梅4 , 张小雪1 , 李冲1 , 喇永富1 , 田慧彬3 , 张永辉2 , 王维民1,3
作者信息
1.甘肃农业大学动物科学技术学院; 2.甘肃省草原技术推广总站; 3.兰州大学草地农业科技学院; 4.甘南藏族自治州畜牧工作站
通讯作者:
王维民
作者简介:
莫负涛(1989-),女,甘肃定西人,硕士,高级畜牧师,研究方向为动物营养与草原资源保护利用,E-mail:392998237@qq.com;
Affiliations
出版时间: 2025-12-22
doi: 10.19556/j.0258-7033.20250314-08
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为探讨藏羊及其杂交后代最佳生长曲线模型,了解其生长发育规律,本试验测定了放牧条件下55只藏羊以及33只湖藏(湖羊♂×藏羊♀)杂交羔羊0~1周岁的体重,选用Gompertz和Logistic生长曲线拟合了上述2个种群羔羊0~1周岁的生长过程,并分析比较了生长参数及模型估计值。结果显示,2种曲线均有较好的拟合效果,拟合度(R 2 )>0.97,相比于Logistic曲线,Gompertz曲线对2个种群的拟合效果更佳。藏羊公、母羔拐点月龄分别为2.79、2.46月龄,拐点体重分别为17.20、15.35 kg;湖藏杂交羊公、母羔拐点月龄分别为3.39、2.27月龄,拐点体重分别为23.05、17.79 kg,杂交效果显著,开展其生长曲线模型分析,可为藏羊品种改良提供数据支撑和理论依据。
莫负涛, 李发弟, 石红梅, 张小雪, 李冲, 喇永富, 田慧彬, 张永辉, 王维民.
藏羊及其杂交后代生长发育模型分析.
中国畜牧杂志,
2026
, 62
(2)
: 247
-251
.
DOI: 10.19556/j.0258-7033.20250314-08
国家重点研发计划(2023YFF1001000);甘肃省重点研发计划(20YF3NA012);甘肃省农业生物技术研究与应用开发项目(GNSW-2016-10);高寒草地资源利用方式优化配置技术示范推广项目(kjcx2022010);
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2026年第62卷第2期
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doi: 10.19556/j.0258-7033.20250314-08
首发时间:2026-07-01
出版时间:2025-12-22
https://castjournals.cast.org.cn/joweb/zgxmzz/CN/10.19556/j.0258-7033.20250314-08
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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