苜蓿草粉对新西兰白兔生长的影响

选取28日龄断奶新西兰白兔88只,随机分为4组,对照组饲喂含花生秧粉35%的日粮,试验Ⅰ、Ⅱ、Ⅲ组分别添加15%、25%和35%的苜蓿草粉替代花生秧粉,测定28～70日龄阶段的增重、日增重,分析其经济效益。结果显示:对照组和试验Ⅰ、Ⅱ、Ⅲ组兔28～70日龄日增重分别为31.82g、33.71g、38.23g和29.26g,试验Ⅰ、Ⅱ、Ⅲ组只均增重和日增重均与对照组存在显著或极显著的差异(P<0.05或P<0.01);试验Ⅰ、Ⅱ和Ⅲ组的料重比分别比对照组下降6.14%、7.31%、11.40%;试验Ⅰ、Ⅱ和Ⅲ组的死亡率较对照组分别降低4.54%、9.09%、18.18%;试验Ⅰ、Ⅱ和Ⅲ组只均获利分别比对照组提高9.41%、14.48%、31.85%。     

山羊精料补充料增重效果报告

山羊精料补充料目前未见国标和地标,遵照饲料卫生标准（GB13078—2001）。参照美国NRC（1981）和《饲料添加剂手册》（张力2000）推荐量设计生产的山羊精料补充料经试验表明．试验组只平日增重126.3±12．6g,比对照组66．4±22．3g提高90．2％,差异显著（P〈0．01）,投入产出比1：1．92。     

精料补充料在家兔日粮中的应用研究

选择35日龄左右、健康无病的齐卡大型白兔120只,随机分为4组,分别饲喂全价饲料和3种不同营养水平的精料补充料,观察其采食量、日增重和成活率。结果表明:饲喂青草加精料补充料较饲喂全价饲料成本低。而精料补充料以消化能12.76MJ/kg、粗蛋白19.28%、粗纤维6.21%的营养水平饲喂效果最佳。     

蚯蚓粉代替鱼粉饲喂育肥猪的试验

蚯蚓粉是动物性蛋白饲料,营养丰富,用它来代替鱼粉理论上是可行的。为了验证蚯蚓粉代替鱼粉在生产实践中的可行性,特选择40头育肥猪,随机分为两组进行饲喂试验。结果表明用蚯蚓粉代替鱼粉饲喂育肥猪日增重可提高13.1.%,料重比降低0.9∶1。     

同种羔羊蛋白质补充料饲喂杂交肉羊效果

在日粮代谢能、粗蛋白相同的条件下,用羔羊蛋白补充料对断奶杂交肉用羔羊进行饲养试验,观察肉用羔羊的日增重情况。     

蚯蚓粉对肉兔生产性能的影响

选取40日龄体重接近的断奶新西兰白兔80只，随机分成2组，在基础日粮和营养水平相同的情况下，试验组添加2％的蚯蚓粉。结果表明，试验组平均日增重提高18％，料重比下降11．64％。     

桑叶粉对新西兰白兔免疫与抗氧化功能及肌肉风味的影响

本试验旨在研究饲粮中添加不同水平桑叶粉对新西兰白兔免疫与抗氧化功能及肌肉风味的影响。选用120只35日龄断奶的新西兰白兔,随机分为4组,每组3个重复,每个重复10只(公母各占1/2)。4组试验兔分别饲喂桑叶粉添加水平为0(对照组)、15%(试验Ⅰ组)、20%(试验Ⅱ组)、25%(试验Ⅲ组)的试验饲粮,试验期为35 d。结果显示:试验Ⅰ组和试验Ⅱ组血清酸性磷酸酶(ACP)活性和白细胞介素-6(IL-6)含量均显著高于对照组(P0.05)。随着桑叶粉添加水平的增加,血清溶菌酶(LZM)活性呈上升趋势,且试验Ⅱ组和试验Ⅲ组与对照组差异显著(P0.05)。试验I组血清过氧化氢酶(CAT)活性极显著高于对照组和试验Ⅲ组(P0.01)。血清丙二醛(M DA)含量在各试验组间无显著差异(P0.05),但各试验组均显著低于对照组(P0.05)。随着桑叶粉添加水平的增加,血清总抗氧化能力(T-AOC)呈现上升趋势,且各试验组均显著高于对照组(P0.05)。试验Ⅰ组和试验Ⅱ组背最长肌中肌苷酸含量均显著高于对照组(P0.05)。试验Ⅱ组和试验Ⅲ组腿肌中肌苷酸含量均显著高于对照组(P0.05)。试验Ⅰ组与试验Ⅱ组背最长肌和腿肌中必需氨基酸、鲜味氨基酸、总氨基酸以及多不饱和脂肪酸含量均高于对照组(P0.05)。由此得出,桑叶粉在改善新西兰白兔免疫与抗氧化功能及肌肉风味方面有很好的效果,并且以15%~20%添加水平效果较佳。     

日本大耳白兔、新西兰兔血液蛋白多态性的研究

采用垂直板聚丙烯酰胺凝胶电泳法对日本大耳白兔、新西兰兔血液中的血清转铁蛋白 (Tf)、前转铁蛋白 (Prt)、后白蛋白 (Po)、血液结合素 (Hp)、红细胞酯酶 (ES - 1、ES - 2和ES - 3)等 7个蛋白座位进行测定。结果表明 :这 7个座位均呈多态。在多态座位中 ,Tf、Prt、Po、Hp、ES - 1、ES - 2、ES - 3分别出现 3、3、6、3、3和 3种表型 ,受 2、2、3、2、2和 2个共显性等位基因控制。X2 检验表明 ,新西兰兔在这 7个座位上均处于平衡状态 (P >0 .0 5 ) ,日本大耳白兔在Tf、Po、ES -1、ES - 34个座位处于平衡 (P >0 .0 5 ) ,而在Prt、Hp、ES - 2出现不平衡状态 (P <0 .0 5 )。     

豫丰黄兔与新西兰兔、哈白兔增重对比试验研究

豫丰黄兔与新西兰兔、哈白兔进行增重对比试验表明,豫丰黄兔在增重、饲料转换率方面都略高于新西兰兔,而稍低于哈白兔,经t检验差异不显著（P＞0.05）,说明豫丰黄兔作为一个新的培育品种,具有良好的生产能力和饲料转换能力。     

Glaucoma in a New Zealand White Rabbit Fed High-cholesterol Diet

Goniodysgenesis, malformation of the filtration angle, was observed in a New Zealand white rabbit supplied with 100 g/day rabbit chow containing 0.2% cholesterol for 10 months. Histopathology revealed cupping of the optic disc, atrophy of the retina and hyalinization of the ciliary body in the bilateral eyeballs. These findings corresponded with histopathological features caused by glaucoma. On the basis of these findings, we diagnosed this lesion as glaucoma, and classified it as primary glaucoma because of the presence of developmental defects of the filtration angle. In this case, hypercholesterolemia-induced changes, such as aggregation of lipid-laden macrophages and cholesterin clefts in the sclera or choroid, might cause deterioration of the lesions in glaucoma.     

不同饲料添加剂对新西兰白兔生产性能的影响

为了探讨不同饲料添加剂水平的饲粮对新西兰白兔生产性能的影响,试验采用加日龄健康新西兰白兔,按性别对等原则分成4组,试验期为12周.对照组只饲喂基础饲粮,试验Ⅰ组饲粮中加入适量营养型物质.试验Ⅱ组为中草药添加剂组,试验Ⅲ组为酶制剂、营养型物质和中药添加剂组.测定第3、5、8周各组新西兰白兔的体重、体长和胸围.12周后屠宰,测定其相关生产性能指标,并统计饲料报酬和成活率.结果表明,试验Ⅲ组各项生产性能指标明显高于对照组,且差异显著(P<0.05);与试验Ⅰ组、试验Ⅱ组相比各项指标略高,但差异不显著(P>0.05).表明营养型物质、中草药添加剂以及酶制剂在基础饲粮中的适量添加对新西兰白兔的生产性能有明显的促进作用.     

德国大白兔与新西兰兔早期生长规律及饲料转化效率的比较

对德国大白兔、新西兰兔两个品种的早期生长规律及对不同饲料的转化效率进行研究比较。结果表明：无论是德国大白兔,还是新西兰兔,都表现出早期生长快的特点,而且以３０－７５日龄生长最快,在此期间,新西兰兔日增重平均为３２．１ｇ,德国大白兔为４３．６ｇ;与新西兰兔相比,德国大白兔生长更快,整个试验期的日增重始终高于新西兰兔;从饲料报酬看,对同一饲料,虽然德国大白兔的饲料报酬高于新西兰兔,但差异不显著（Ｐ＞０     

苜蓿草粉对獭兔消化率及饲用效果的影响

为探讨紫花苜蓿(Medicago sativa)草粉对獭兔饲用价值的影响,选取体重相近的56日龄獭兔108只,分别测定苜蓿草粉(alfalfa meal,AM)、玉米(Zea mays)秸秆(corn stalk,CS)和大豆(Glycine max)秸秆(soybean straw,SS)单一饲喂时的消化率,3种粗饲料源配制的配合饲料中各种营养物质的消化率,以及不同水平AM对獭兔胴体与毛皮品质的影响.结果表明:AM与CS和SS具有相似的粗饲料价值;AM对配合饲料粗蛋白质利用率的影响低于SS和CS;50％的AM有利于提高獭兔的屠宰率、肌肉系水力与毛皮强度.因此,AM优于CS和SS,饲喂50％的     

Postnatal Osteological Development of the Cervical Vertebrae in the New Zealand White Rabbit

This study used the New Zealand White rabbit to reveal the normal ossification development of the cervical component of the spine. Preserved cervical vertebrae representing five different age periods, each period including five individuals and the total number of animals being 25, were fixed in 3.5% formaldehyde solution and 95% ethanol, followed by a pure acetone bath. The materials were then stained with an alcian blue–alizarin red combination. The ossification centres were identical over time, and the pattern of fusion among them was homogenous and constant in appearance. There were three different primary ossification centres in all the cervical vertebrae except the axis, which showed four primary ossification centres. The dorsally located primary ossification centres later formed the pedicles of the neural arches, while the ventral centres constituted the body of each vertebra. The study was terminated at 10 weeks of age because the ossification centres observed in the cervical vertebrae completed their fusion and no further ossification centres were observed.     

Postnatal Osteological Development of the Hyoid Bone in the New Zealand White Rabbit

This study augments knowledge of bone growth by observing the development of the hyoid bone in the New Zealand White rabbit. Preserved hyoid bones representing five different age periods, each period including five individuals and the total number of animals being 25, were fixed in 3.5% formaldehyde solution and 95% ethanol, followed by a pure acetone bath. They were then stained with an alcian blue–alizarin red combination. The mode of bone formation was intracartilaginous type ossification. While the basihyoideum and thyrohyoideum were observed to start ossifying first at prenatal stage, indicating that they are the main skeletal structures of the hyoid apparatus, the ceratohyoideum and lingual process began to ossify in the second and third periods. The separately occurring primary ossification centres fused completely among themselves in the fifth period. Because no further ossification centers were observed and the ossified parts continued the development and growth, the research was terminated after 10 weeks of age.