国审新品种皖临白山羊培育与种质特性

Breeding and Germplasm Characteristics of Wanlin White Goat New Variety Approved by the State

为更好地保护和开发利用安徽省优良地方羊种,增加我国优质肉羊产能。该研究以地方品种安徽白山羊为基础,引入萨能奶山羊和波尔山羊血缘,开展了皖临白山羊新品种培育。选育结果:经过三元杂交以及横交固定选育四个世代后,新品种皖临白山羊2月龄公羔体重为(12.38±1.63) kg,体高、体长和胸围数据分别达到(46.12±1.51)、(44.15±1.55)和(50.10±1.99) cm;6月龄公羔体重为(31.12±3.14) kg,体高、体长和胸围数据分别达到(63.38±1.98)、(58.95±2.15)和(72.20±2.55) cm;12月龄公羊体重为(52.53±4.01) kg,体高、体长和胸围数据分别达到(71.38±4.11)、(68.55±2.99)和(85.85±3.55) cm;18月龄公羊体重为(66.16±4.78) kg,体高、体长和胸围数据分别达到(81.25±4.10)、(73.44±4.21)和(92.21±4.31) cm;产羔率达255.3%;6月龄公羊屠宰率、净肉率和眼肌面积分别达(54.15±1.42)%、(47.08±0.85)%和(13.01±0.44) cm2;6月龄母羊屠宰率、净肉率和眼肌面积分别达(53.21±0.76)%、(46.56±1.52)%和(12.92±0.78) cm2。可见,皖临白山羊新品种体型较大,背毛白色,全身结构匀称紧凑,背腰宽平,四肢粗壮,蹄质坚实,充分发挥了亲本成活率高、抗逆性强、耐粗饲等优良特点。

To better protect and develop and utilize the excellent local sheep breeds in Anhui Province,and increase the production capacity of high-quality meat sheep in China.In this study,we carried out the breeding of a new breed of Anhui Wanlin white goat based on the local breed Anhui white goat and introduced Saanen dairy goat and Boer goat bloodline.After four generations of three-way cross and cross fixed breeding,the body weight of 2-month-old male lambs of Wanlin White Goat was(12.38±1.63)kg,and the data of body height,body length and chest circumference were(46.12±1.51),(44.15±1.55)and(50.10±1.99)cm,respectively.The body weight of 6-month-old male lambs was(31.12±3.14)kg,and the data of body height,body length and chest circumference were(63.38±1.98),(58.95±2.15)and(72.20±2.55)cm,respectively;The body weight of 12-month-old male lambs was(52.5±4.01)kg,and the data of body height,body length and chest circumference were(71.38±4.11),(68.55±2.99),(85.85±3.55)cm,respectively.The body weight of 18-month-old ram was(66.16±4.78)kg,and the lambing rates of body height,body length and chest circumference were(81.25±4.10),(73.44±4.21)and(92.21±4.31)cm,respectively.The lambing rate of Wanlin white goat reached 255.3%.The slaughtering rate,net meat percentage and eye muscle area of 6-month-old rams were(54.15±1.42)%,(47.08±0.85)%and(13.01±0.44)cm2,respectively.The slaughtering rate,net meat percentage and eye muscle area of 6-month-old ewes were(53.21±0.76)%,(46.56±1.52)%and(12.92±0.78)cm2,respectively.The new variety of Wanlin white goat has large body size,white back hair,symmetrical and compact body structure,wide and flat back,strong limbs and solid hoof.It gives full play to the excellent characteristics of high survival rate,strong resistance and rough feeding resistance of parents.