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1.
鹅的主要产品为毛、肉、蛋、肥肝等,虽然各种鹅均生产这些产品,但不同品种的鹅生产用途有所不同。从鹅的主要经济用途看,鹅的品种分羽绒型、蛋用型、肉用型、肥肝用型。1羽绒用型各品种的鹅均产羽绒,专门把某些鹅种定为羽绒用型似乎不科学,但在鹅的品种中,以皖西白鹅的羽绒洁白、绒朵大而品质最好。因此一些客商在收活鹅时,相同体重的白鹅,皖西白鹅的价格要高。特别是养鹅进行活鹅拔毛时,更应选择这一品种。但皖西白鹅的缺点是产蛋较少,繁殖性能差,如以肉毛兼用为主,可引入四川白鹅、莱茵鹅等进行杂交。2蛋用型目前鹅蛋已成为人们喜爱的食品…  相似文献   

2.
在大致相同的饲养管理及自然气候条件下,分别测定四川白鹅、莱茵鹅两品种的生长、繁殖、屠宰性能。结果表明:四川白鹅在产蛋数、授精率明显高于莱茵鹅;莱茵鹅在初生重、成年体重、日增重、饲料报酬、屠宰率、肝重明显高于四川白鹅:在孵化率、腿肌率和抗病性能两品种无明显差异。  相似文献   

3.
<正>1品种选择品种是影响肥肝生产的首要因素。凡是肉用性能良好的大型水禽品种均适合于肥肝生产,而产蛋多的小型水禽不宜用于肥肝生产。狮头鹅和溆浦鹅是体型大的品种,其肥肝生产性能比体型小的品种如豁鹅等产肥肝性能好。目前一些肥肝生产发达的国家,从用纯种的朗德鹅生产肥肝,逐渐转向充分利用杂交优势来进行肥肝的商品生产,即采用肥肝性能好的大型鹅作父本,与繁殖率高的品种作母本进行杂交。如浙东白鹅的肥肝性能也较好,与朗德鹅杂交后  相似文献   

4.
对五龙鹅、四川白鹅、朗德鹅、莱茵鹅、本地鹅等品种在湖北气候条件下进行饲养观测,0~80日龄体重分别达到3068、3152、3923、3588、2863g,当年10~11月开产至次年5月产蛋结束,产蛋持续时间183~214d,平均产蛋数35.6枚/只,产蛋率18.2%。  相似文献   

5.
提高养鹅经济效益的措施   总被引:1,自引:0,他引:1  
1选择优良品种鹅 优良品种鹅生长发育快、饲料转化率高、饲养周期短、产蛋多、产肉多、产羽绒高、经济效益高.我国普遍饲养的良种鹅有四川白鹅、扬州鹅、隆昌鹅、溆浦鹅、豁眼鹅、狮头鹅以及由品种鹅多次与当地鹅杂交纯化选育的商品鹅,如雅鲁肝鹅,就是典型的肉、蛋、绒、肝、皮多用的新品种鹅.  相似文献   

6.
水禽欣赏     
建昌鸭:是我国麻鸭类型中肉用性能较好的品种,以生产大肥肝而闻名。具有生长迅速,成熟早,体大肉多,易于填肥,瘦肉率高,肉质细嫩,肝大等特点。年产蛋150枚左右,蛋重72~73克,公鸭平均体重2.2~2.6千克,母鸭平均体重2~2.1千克,成年鸭经人工填饲后可得到肥肝200~400克。公母鸭配种比例1∶7~9。金定鸭:是优良的蛋鸭品种,早熟高产,年平均产蛋量280~300枚,平均蛋重70克。体重达1.7千克。该鸭可边产蛋边换羽,产蛋周期也较长。适宜海滩、河流、池塘、稻田及平原放牧,也可舍内饲养。公母鸭配种比例为1∶25。母鸭的利用年限为3年,公鸭的利用年限为…  相似文献   

7.
<正> 莲花白鹅是我省有代表性的优良地方鹅品种,它具有耐粗饲、适应性强、孵化及育雏性能好等优点。但是,由于其就巢性强,不易醒抱,故而其产蛋性能较差。据调查,成年母鹅的年产蛋量为25~30枚。为了使莲花白鹅的产蛋性能得以提高,决定进行莲花白鹅的杂交改良试验。 1材料与方法欲达到提高莲花白鹅产蛋性能的目的,除了进行本品种选育提高的途径之外,进行杂交改良是既快又好的有效手段。我国的豁  相似文献   

8.
蛋用鹌鹑神丹黄羽系与南农黄羽系比较试验   总被引:1,自引:0,他引:1  
将鹌鹑神丹黄羽系与鹌鹑南农黄羽系在相同饲养管理条件下,进行生长发育与产蛋性能对比试验,结果表明:神丹黄羽系鹌鹑初生重、35日龄体重、105日龄体重分别比南农黄羽系鹌鹑低。神丹黄羽系鹌鹑的开产日龄分别比南农黄羽系鹌鹑早2~3d。15周龄产蛋数多4.9枚;20周龄产蛋数多4.2枚,总产蛋数比南农黄羽系高5%以上。神丹黄羽系105日龄平均蛋重10.96g/枚,比南农黄羽系低0.3g/枚,符合蛋品加工的要求。  相似文献   

9.
(一)选择优良品种鹅 优良品种鹅生长发育快、饲料转化率高、饲养周期短、产蛋多、产肉多、产羽绒高、经济效益高.我国普遍饲养的良种鹅有四川白鹅、扬州鹅、隆昌鹅、溆浦鹅、豁眼鹅、狮头鹅以及由品种鹅多次与当地鹅杂交纯化选育的商品鹅,如雅鲁肝鹅,就是典型的肉、蛋、绒、肝、皮多用的新品种鹅.  相似文献   

10.
《中国禽业导刊》2003,20(8):46-46
我国鹅品种资源丰富,根据鹅的主要经济用途可将其分为羽绒用型、蛋用型、肉用型、肥肝用型。在倡导健康消费的今天,市场对鹅产品的需求呼声渐高,紧盯市场、科学选择优质鹅种是获得显著经济效益的前提。羽绒用型所有品种的鹅均产羽绒,专门把某些鹅种定为羽绒用型似乎不太科学,但在所有鹅种中以皖西白鹅的羽绒洁白、绒朵大而视为上乘,一些客商在收购羽绒用活鹅时,如为相同体重的白鹅,以皖西白鹅的价格为最高。因此,进行活鹅拔毛时应该选择这一品种。但皖西白鹅的缺点是产蛋较少.繁殖性能差,如以内毛兼用为主要用途.可引入四川白鹅、莱茵鹅等对其进行杂交。  相似文献   

11.
不同开填体重朗德鹅产肝性能的比较试验   总被引:1,自引:0,他引:1  
对不同开填体重的朗德鹅产肝性能进行了比较分析。结果发现:4.2 kg体重组的平均肝重最大,为827.50 g,极显著高于3.8 kg、3.0 kg体重组(P<0.01);4.7 kg体重组的肝重明显低于4.2 kg体重组,但没有达到显著水平(P=0.20);相关分析发现开填体重与肝重之间呈极显著的正相关;通过建立回归曲线得出国内朗德鹅12周龄的最佳开填体重为4.5 kg。对肥肝重与腹脂重、皮脂厚等指标进行了相关性分析,发现肝重与腹脂重呈正相关且达到显著水平(P<0.05),说明脂肪组织的脂肪沉积与肝脏的脂肪沉积有密切的关系。  相似文献   

12.
为揭示马岗鹅的生长发育规律,挖掘马岗鹅的生长潜力,本研究通过测定马岗鹅0~12周龄的体重和体尺性状,并用Logistics、Von Bertalanffy和Gompertz 3种模型进行生长曲线拟合。结果表明:马岗鹅体重生长曲线最佳模型为Gompertz模型(R2=0.999),拐点周龄是4.31周龄,拐点体重是1459.01g,2~8周龄的周增重都在320 g以上,相对生长率都在16%以上,8周龄前为马岗鹅体重迅速增长时期。胸深、龙骨长、颈长的最佳拟合模型为Gompertz,拐点周龄分别为0.65、3.71、2.28周龄;体斜长、半潜水长的最佳拟合模型为Von Bertalanffy,拐点周龄分别为0.53、0.47周龄;胸宽、骨盆宽、胫长、胫围的最佳拟合模型为Logistic,拐点周龄分别为3.81、1.39、0.91、0.51周龄;7周龄前为马岗鹅体尺性状迅速增长时期。本研究结果可为马岗鹅的生产和饲养管理提供理论指导。  相似文献   

13.
本试验选择性状优良的中系、日系材料若干,以杂交育种结合系谱选择为主,辅以对死笼率及产卵量的选择,经过6年11代的选育,初步选育出一对春秋兼用的桑蚕新品种。该品种虫蛹率、万蚕收茧量、万蚕茧层量、万头蚕产丝量、生丝率、解舒率分别高于对照种。茧层率与对照种相仿,茧丝长及净度低于对照种。克蚁制种量高出对照种16.5个百分点。该品种综合经济性状优良,适合在山西省及气候条件相同的中西部蚕区饲养。  相似文献   

14.
太湖鹅生长和屠宰性能以及肉品质的分析   总被引:1,自引:0,他引:1  
以国家水禽种质资源基因库引进的太湖鹅为素材,对其生长、生产性能和肉品质进行研究。结果表明:7周龄前,太湖鹅体重在性别间无显著差异,7周龄后公鹅的体重显著高于母鹅的体重;公鹅的宰前活重、屠宰重、半净膛重、全净膛重、肝重、心重显著高于母鹅;母鹅胸肌嫩度显著低于公鹅,其他指标在性别间无显著差异。体重与体尺、屠宰性能、肉品质多数指标存在极显著的正相关。  相似文献   

15.
为充分了解广东地区重要鹅种"清远黑鬃鹅"的生产性能和生长发育规律,本研究测定"清远黑鬃鹅"0~9周龄的生长性能,并用Gompertz、Logistics和Von bertalanffy 3种模型对其体重及体尺性状进行生长曲线拟合,同时对9周龄体重与体尺性状进行相关性分析。结果表明:Gompertz模型为"清远黑鬃鹅"体重最佳拟合模型(R2=0.998),拐点体重为1642.68g,拐点周龄为3.93周龄;半潜水长、胸宽和骨盆宽的最佳拟合模型为Gompertz模型,体斜长的最佳拟合模型为Von bertalanffy模型,胫长、胫围、龙骨长、胸深和胫长的最佳拟合模型为Logistic模型;体重与体尺性状各指标间均呈正相关,与体斜长、胸宽、骨盆宽、龙骨长、胫围、半潜水长、颈长均达极显著相关,与胫长呈显著相关。  相似文献   

16.
对浙江省现有主要鹅种的体重、体尺及屠宰性能进行了比较分析,并根据各品种的表型性状值进行了聚类分析。结果表明:不同鹅种间在活重、胸深、胸宽、骨盆宽、胫长、胫围、体斜长、龙骨长、半潜水长、屠宰率、半净膛率、全净膛率、腹脂率、胸肌率和腿肌率等指标上均存在明显的差异,同一鹅种体尺、体重和屠宰性能在性别之间的差异也较明显;依据鹅体尺、体重和屠体性状等表型性状值进行品种间聚类分析,其聚类结果与鹅体重和体尺表现出较高的一致性,5个品种可大致分为3类,太湖鹅和江山白鹅为一类,浙东白鹅和朗德鹅为一类,永康灰鹅独立为一类。  相似文献   

17.
This paper was aimed to study the impact of hatching egg weights and egg shape indexs on hatching of Zi goose,and then sum up the best scheme for hatching eggs screening,so as to provide scientific reference for the selection and retention of Zi goose individuals and family hatching eggs,as well as the breeding and incubation production.2469 hatching eggs of Zi geese of the second year were chosen with the weight range of 94.8 to 154.4 g and an average weight of (123.3±9.5) g;the egg shape index range was 1.24~1.63 and the average index was 1.45±0.05.Using 2 factors 4 levels test design,the weight and the shape index of eggs were divided into four levels and all the eggs were separated into 16 hatching groups.The weight and the shape index were measured and labeled on eggshells.Two hatching experiments were conducted in the same instrument and the hatching conditions were same.The results showed that:① Egg fertility rate was the highest in egg weight <118.0 g group,followed by >131.9 g group;Hatchability of fertilized eggs was the highest in >131.9 g group,followed by 125.0~131.9 g group,and the hatchability of fertilized eggs increased along with the increase of egg weight;The highest healthy chick rate of breeding egg hatching lay in 125.0~131.9 g group,followed by >131.9 g group;The highest breeding egg hatching gosling birth weight lay in >131.9 group.② When egg shape index was between 1.47 to 1.51,the egg fertility rate and healthy chick rate were the highest,followed by >1.51 group;In the group 1.47 to 1.51,hatchability of fertilized eggs was the highest,followed by 1.42 to 1.46 group.In conclusion,hatching egg weight of Zi goose had significant impact on egg fertility rate,hatchability of fertilized eggs,healthy chick rate and gosling birth weight (P<0.05),and the egg weight of Zi goose between 125.0~154.4 g was advisable;on the other hand,egg shape index also had significant impact on egg fertility rate,hatchability of fertilized eggs and healthy chick rate (P<0.05),but had no impact on gosling birth weight (P>0.05),and the egg shape index between 1.47 to 1.51 was appropriate.Egg fertility rate,hatchability of fertilized eggs,healthy chick rate and gosling birth weight were affected by interaction of egg weight and shape index.Compared with the weight of eggs,the egg shape index had greater influence on healthy geese rate.The egg shape index had no direct impact on birth weight of young geese,but it could be influenced by the interaction between the egg shape index and the weight.Thus it was not very scientific to take either the weight or the index as the only basis for choosing qualified hatching eggs.  相似文献   

18.
为挖掘和利用太湖鹅遗传资源,利用太湖保种场核心群对太湖鹅的繁殖性能进行测定,在相同饲养管理条件下比较太湖鹅与四川白鹅、皖西白鹅、豁眼鹅、扬州鹅的肉质特性差异。结果表明:太湖鹅3%开产日龄188d,66周入舍母鹅产蛋76.3个,52周龄蛋重142.7g,种蛋受精率91.2%,受精蛋孵化率90.1%;太湖鹅胸肌肉水分含量与四川白鹅差异显著(P<0.05),与其它品种差异不显著,太湖鹅胸肌剪切力、肉色、系水力、pH值、粗蛋白和粗脂肪含量与其它品种间差异均不显著;太湖鹅肌纤维密度显著大于四川白鹅、豁眼鹅和扬州鹅(P<0.05),但显著小于皖西白鹅(P<0.05);太湖鹅肌纤维直径显著小于其它品种(P<0.05)。研究表明,太湖鹅经过进一步选育可以作为优质肉鹅配套系的理想母本。  相似文献   

19.
This experiment aimed to determine the changes of body weight, liver weight, abdominal fat weight, hepatic routine nutritional composition, blood biochemistry indexes, as well as mRNA expression of lipid metabolism-associated genes during the recovery of Landes geese with fatty liver, which provided the basis for the further elucidation of the recovery or protection mechanism of goose fat liver.18 Landes geese were divided into three groups (6 gees in each group).Group 1 was control group, in which the geese were fed with boiled maize;Group 2 was the overfeeding group without recovery, in which the geese were overfed with a maize-based diet for 19 days;And group 3 was the overfeeding group with 20-day recovery, in which the geese were overfed with the maize-based diet for 19 days followed by feeding boiled maize for 20-day recovery.The results showed that compared with group 2, the body weight and liver weight of the geese in group 3 decreased extremely significantly (P<0.01), and the abdominal fat weights undecreased significantly (P>0.05);Moreover, the percentages of nutrients including water, ash, CP of livers in group 3 increased significantly (P<0.05), while the percentage of EE decreased significantly (P<0.05), but there were no significant difference for these variables between groups 1 and 3 (P>0.05) except water.In regard to blood biochemistry indexes, the contents of blood ALT, AST, TG and HDL-C in group 3 decreased significantly (P<0.05), but there were no significant difference from those of group 1 (P>0.05).The mRNA expression levels of FADS1, SCD1 and CYP2C45 in group 3 decreased significantly compared with group 1 (P<0.05), but there were no significant difference between groups 1 and 3 (P>0.05).In summary, this study demonstrated the recoverability of goose fatty liver at different layers, and thus laid a foundation for further investigation on the recovery or protective mechanism of goose fatty liver and found the solution to resolve the problems related to animal fatty liver.  相似文献   

20.
The study was aimed to reveal the rule of growth and development and meat performance in Xiang White goose. 100 healthy Xiang White geese (50 male and 50 female) were selected and weighed during 0 to 12 weeks of age for study the growth and development by using Logistic model. 8 geese in each gender were slaughtered at age of 12-week and the body size index and meat yield performance were measured. The results showed as follows:① Xiang White goose grew rapidly in 1 to 6 weeks, and the increase of body weight was relatively stable during 7 to 12 weeks. After 4 weeks of age, the body weight of male goose were significantly (P<0.05) or extremely significantly (P<0.01) higher than the female. The fitting rates of Logistic model were over 0.988 in both male and female goose. The inflection of growth curves of female goose was at age of 5 weeks, and the male was 5.2 weeks. The correlation coefficient between the body weights at age of 4 weeks and 12 weeks were 0.512,0.561 in male and female goose, respectively (P<0.01).②The body length, keel length, tibia length and half-length diving of male goose at age of 12 weeks were significantly higher than the female (P<0.05).③The live body weight of male goose at age of 12 weeks was significantly greater than the female (P<0.05). ④The slaughter rate, eviscerated percentage, breast muscle rate, leg muscle rate of Xiang White goose were 88.25%, 67.93%, 13.03% and 13.76%, respectively. In conclusion, Xiang White goose grew fast, and had a good performance of meat production. The growth and development, body size and slaughter performance of male goose were better than the female.  相似文献   

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