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1.
不同周龄母鸡鸡蛋及不同蛋壳质地鸡蛋的蛋品质比较 总被引：1，自引：0，他引：1
本文比较了同一品种不同周龄(26、40周龄和64周龄)母鸡所产蛋的蛋壳品质和蛋品质,包括蛋重、蛋壳相对重、蛋形指数、蛋壳强度、蛋壳厚度、蛋黄颜色、蛋黄指数、蛋黄比率、哈氏单位、蛋清pH值。之后,还比较了该鸡种不同蛋壳质地鸡蛋(正常蛋和砂壳蛋)之间上述指标的差异。结果表明:在不同周龄母鸡所产蛋之间,蛋重、蛋黄指数、蛋黄比率、哈氏单位等均存在显著差异(p<0.05),而蛋壳厚度之间差异不显著(p>0.05)。此外,蛋重、蛋形指数、蛋黄颜色、蛋黄比率随着母鸡周龄的增加呈上升趋势,而蛋壳强度、蛋壳相对重、哈氏单位、蛋黄指数、蛋清pH值呈下降趋势。最后,蛋壳质地不同的鸡蛋(正常蛋与砂壳蛋)之间,蛋重、蛋壳相对重、蛋壳强度、蛋清pH值之间存在极显著差异(p<0.01),而其他参数之间差异不显著(p>0.05)。 相似文献
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1. Eggs from a layer-type breeder flock (Baladi, King Saud University) between 50 and 63 weeks of age were used in three trials to study the effects of electrical field (EF) during incubation on albumen and yolk heights, incubation temperature, egg weight loss and hatchability traits. The effects of egg size and eggshell characteristics on hatchability traits of eggs incubated under EF were investigated. 2. Eggs were weighed and graded into three weight classes (small, medium, and large). The physical dimensions, eggshell characteristics, and conductance of eggs were examined. The incubator was divided into two compartments for the control and EF treatments. Two aluminium plates were fitted on the inside walls of the EF compartment, face to face, and connected to a step up electric transformer. Eggs were exposed constantly to the EF during the first 18 d of incubation at the level of 30 kV/m, 60 Hz. 3. Egg size influenced the physical dimensions and eggshell characteristics of eggs. Large eggs had higher egg weight, egg surface area, egg volume, eggshell conductance, and eggshell weight and lower yolk weight percentage than medium or small size eggs. Small eggs had lower egg length and higher egg density than large or medium size eggs. Large eggs had higher eggshell thickness than small size eggs. 4. EF incubation of eggs raised incubation temperature by 0.06 degrees C, and increased the percentage of egg weight loss, hatchability, and weight of hatching chicks and reduced the early embryo deaths, and length of incubation by approximately 9.8, 19.6, 1.7, 62.1 and 2.1%, respectively. 5. There was no significant difference between the two incubation treatments in the heights of albumen and yolk of incubated eggs, percentages of late embryo deaths, and pips with live and dead embryos. Hatchability traits were not significantly influenced by egg size. 6. It was concluded that EF incubation of eggs increased hatchability, chick-hatching weight, and reduced the length of incubation of Baladi eggs. Differences in the physical dimensions and eggshell characteristics of eggs did not influence hatchability traits of eggs under EF incubation. 相似文献
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为研究缠丝鸭蛋和普通鸭蛋在蛋品质及营养成分之间的差异,本试验随机选取300日龄左右鸭产的缠丝鸭蛋和普通鸭蛋各50枚,分别测定其蛋重、蛋壳厚度、蛋壳强度、蛋壳颜色、蛋白高度、蛋形指数、蛋黄色泽和哈氏单位等蛋品质性状及粗蛋白质、粗脂肪、钙、磷、锌和铁等营养成分含量。结果表明,与普通鸭蛋相比,缠丝鸭蛋的蛋重、蛋壳厚度、蛋壳颜色、蛋壳强度和蛋形指数差异均不显著(P>0.05),而蛋白高度、蛋黄色泽和哈氏单位极显著高于普通鸭蛋(P<0.01);蛋白质、钙、锌、铁含量较高,脂肪、磷含量较低。提示,缠丝鸭蛋蛋品质优于普通鸭蛋,营养物质含量比普通鸭蛋更丰富。 相似文献
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[目的]研究鸡蛋暗斑对蛋品质及其抗氧化能力的影响。[方法]从饲喂同种日粮、饲养环境相同、同日龄褐壳蛋鸡同一批次所产的褐壳蛋中,用灯光照射法挑选出24枚典型正常蛋、24枚典型暗斑蛋进行试验,并分别对正常蛋和暗斑蛋进行蛋品质、蛋黄抗氧化指标的测定及比较。[结果]蛋品质比较:暗斑蛋与正常蛋相比,其蛋形指数、蛋壳强度、蛋重、哈氏单位、蛋白高度、鸡蛋等级、蛋黄颜色、蛋黄重、蛋壳重、蛋清重、蛋壳厚度、蛋黄比重、蛋壳比重、蛋清比重均差异不显著(P>0.05);暗斑蛋蛋壳颜色极显著深于正常蛋(P<0.01)。抗氧化指标比较:暗斑蛋蛋黄的总抗氧化能力(T-AOC)显著低于正常蛋蛋黄的总抗氧化能力(P<0.05),暗斑蛋蛋黄的丙二醛(MDA)含量与正常蛋蛋黄的丙二醛含量相比差异不显著(P>0.05)。[结论]与正常蛋相比,暗斑蛋的蛋壳颜色较深,总抗氧化能力较差。 相似文献
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拉萨白鸡蛋品质的测定及相关分析 《畜牧与饲料科学》2016,37(10):10-10
为研究拉萨白鸡蛋品质的相关物理性状,对43周龄拉萨白鸡所产的30枚新鲜鸡蛋进行了蛋品质测定及相关分析。结果表明,蛋壳重量与蛋壳颜色呈显著正相关（P〈0.05）;蛋壳强度与蛋重呈显著正相关（P〈0.05）;蛋白重量与蛋壳颜色呈显著正相关（P〈0.05）,与蛋壳重量呈极显著正相关（P〈0.01）,与蛋壳率呈显著负相关（P〈0.05）;蛋白率与蛋壳率呈显著负相关（P〈0.05）,与蛋白重量呈极显著正相关（P〈0.01）;蛋黄重量与蛋壳重量、蛋白重量呈极显著正相关（P〈0.01）,与蛋壳率呈显著负相关（P〈0.05）,与蛋白率呈极显著负相关（P〈0.01）;蛋黄率与蛋形指数、蛋黄重量呈极显著正相关（P〈0.01）,与蛋壳重量、蛋白重量、蛋白率呈极显著负相关（P〈0.01）;蛋黄比色与蛋壳强度呈显著负相关（P〈0.05）;哈氏单位与蛋壳颜色呈显著负相关（P〈0.05）,与蛋白高度呈极显著正相关（P〈0.01）;蛋壳厚度与蛋壳强度呈极显著正相关（P〈0.01）;血肉斑与蛋壳强度呈极显著正相关（P〈0.01）,与哈氏单位呈显著负相关（P〈0.05）,与蛋壳厚度呈显著正相关（P〈0.05）。其他性状间也有相关性,但差异不显著。该研究为拉萨白鸡今后的选育提供了理论依据。 相似文献
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《The Journal of Applied Poultry Research》2014,23(2):196-203
The objective of this study was to evaluate selected morphological characteristics and the chemical composition of turkey eggs of different weight classes. The percentage of eggs weighing ≥100 g increased to 46.66% in wk 23. Eggs weighing 95 and 110 g had lower yolk content (3.05 and 4.86%) and higher albumen content (by 3.16 and 5.21%) compared with eggs weighing 80 g. The total protein content of the albumen increased (from 9.93 to 10.71%) and the water content of the albumen decreased (from 88.30 to 87.59%) with an increase in egg weight. Albumen weight per gram of yolk increased from 1.87 to between 2.18 and 2.42 g in larger eggs. The energy density of the egg decreased from 5.68 to 4.90 kJ/g with an increase in egg weight, and the energy density of the yolk remained at a similar level in all egg weight classes. The other analyzed yolk and shell parameters were not affected by egg weight. The highest energy and total protein content of the yolk was observed in wk 14 of the laying season. No correlations were found between the progress of the laying cycle and eggshell percentage and the water content of the yolk. The values of the remaining egg parameters varied over the laying season. 相似文献
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个品种鸡的蛋品质比较研究 《畜牧与饲料科学》2016,37(11):12-12
随机选取43周龄的拉萨白鸡鸡蛋、藏鸡鸡蛋和白来航鸡鸡蛋各30枚,进行蛋品质测定。结果表明,3个品种鸡的蛋品质存在差异,除蛋比重差异不显著（P〉0.05）外,拉萨白鸡鸡蛋、白来航鸡鸡蛋与藏鸡鸡蛋的蛋重、蛋壳颜色、气室直径、蛋壳百分率、蛋壳强度、蛋黄重量、蛋壳厚度均存在极显著差异（P〈0.01）;拉萨白鸡鸡蛋、藏鸡鸡蛋与白来航鸡鸡蛋的蛋形指数存在极显著差异（P〈0.01）;拉萨白鸡鸡蛋与藏鸡鸡蛋、白来航鸡鸡蛋的蛋白高度、哈氏单位存在极显著差异（P〈0.01）;蛋白重量、蛋黄比色在3个品种鸡的鸡蛋中存在极显著差异（P〈0.01）;拉萨白鸡鸡蛋与藏鸡鸡蛋、白来航鸡鸡蛋的蛋白百分率存在显著差异（P〈0.05）;3个品种鸡的蛋壳重量和蛋黄百分率相互表现出显著或极显著差异（P〈0.05或P〈0.01）;拉萨白鸡鸡蛋、白来航鸡鸡蛋与藏鸡鸡蛋的血肉斑存在显著差异（P〈0.05）。综合来看,拉萨白鸡的蛋品质最佳,具有良好的市场前景,应加大对拉萨白鸡的品种培育力度。 相似文献
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本试验分析了不同贮存温度和时间对鸽蛋新鲜度、组分、蛋品质及蛋白透明度的影响,寻求鸽蛋贮存的最佳条件,并探索不同贮存条件下鸽蛋蛋白透明度的变化规律,为实际生产中鸽蛋合理贮存和出售提供理论依据。以1~2岁公母配对白羽王鸽为试验对象,采用3（低温、中温、高温）×4（1、2、3、4周）因子交叉完全随机设计,试验开始后每周随机采集90枚鸽蛋,分别放置在3种不同温度条件下,每组30枚,分别持续1、2、3、4周,而后对鸽蛋进行新鲜度、组分、蛋品质及蛋白透明度的测定分析。结果显示,低温条件下,鸽蛋放置4周未出现散黄和可见霉变现象。高温和中温条件下,鸽蛋只可放置1周不变质。随着时间的延长和温度的升高,鸽蛋的失重率显著上升（P<0.05）。时间对蛋壳率、蛋白率及蛋黄率均有显著影响（P<0.05）,但温度对其无显著影响（P>0.05）。不同贮存温度和时间对鸽蛋的蛋白高度和蛋黄颜色均有显著影响（P<0.05）,即随着时间的延长和温度的升高,鸽蛋的蛋白高度呈下降趋势,蛋黄颜色变深。不同贮存温度和时间对煮熟的鸽蛋蛋白L*、a*和b*值均有显著影响（P<0.05）;中温贮存透明鸽蛋所占比例最高。综上所述,鸽蛋贮运和贩售需在冷藏条件下进行。在低温冷藏条件下,鸽蛋可贮存4周以上。在中温条件下（20℃左右）保存,有利于提高鸽蛋蛋白透明度。 相似文献
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1. The egg quality of striped and normal duck eggs was compared to determine why striped eggs show decreased hatchability. A total of 430 eggs, obtained from a Pekin duck breeder flock aged 50–65 wks, were used in three experiments. The eggs were weighed and assigned randomly to measure egg quality traits, egg weight (EW) loss and hatchability during incubation.
2. There were no significant differences between egg types in terms of egg shape index, eggshell strength and thickness, albumen height, Haugh unit, yolk colour, weight of the eggshell with or without membranes, calcium, phosphorus, copper and manganese contents in the eggshell (with the inner and outer membranes or without the inner membrane), albumen weight, dry matter of albumen, crude protein (CP) of thick albumen and pH of the thick albumen.
3. The weight of eggshells with membranes, weight of thick albumen and CP of thin albumen in striped eggs were lower than those in normal eggs.
4. The thin albumen in striped eggs was heavier than that in normal eggs. The pH of the thin albumin in striped egg was significantly higher than that in normal eggs.
5. There were no significant differences in EW loss during incubation or duckling weight between striped and normal eggs. However, the hatchability of striped eggs was lower.
6. The lower weight of the eggshell inner membrane and thick albumen, lower CP content and higher pH in the thin albumen of striped eggs might contribute to lower hatchability. 相似文献
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本试验通过在种鸡的基础饲粮中加入肌苷酸(IMP)来研究其对种鸡产蛋性能、蛋品质和种蛋孵化性能的影响。选择遗传背景相同、体重相近,产蛋率达到5%的20周龄健康AA种鸡864羽,随机分为2组(对照组饲喂基础饲粮;试验组饲喂基础饲粮+0.5%肌苷酸),每组6个重复,每个重复72羽,试验期30 d。测定试验期间所有种蛋的平均蛋重、产蛋率和合格蛋率;每组随机选取部分种蛋进行蛋品质测定;于孵化开始第17天,通过照蛋处理统计种蛋受精率,第21天出雏时,计算受精蛋孵化率、入孵蛋孵化率和健雏率。试验结果表明:与对照组相比,试验组种鸡的平均蛋重、产蛋率和合格蛋率均有升高的趋势,但差异不显著(P>0.05);蛋形指数显著升高(P<0.05),蛋壳强度、蛋壳厚度和蛋黄颜色显著降低(P<0.05);受精率、受精蛋孵化率和入孵蛋孵化率显著升高(P<0.05),健雏率和雏鸡体重有升高的趋势,但差异不显著(P>0.05)。综上,0.5%外源肌苷酸对种鸡的产蛋性能和种蛋孵化性能均有促进作用。 相似文献
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本试验旨在研究不同水平蛋重与蛋形指数对籽鹅种蛋孵化效果的影响,进而总结出种蛋筛选的最佳方案,为籽鹅个体、家系种蛋的选留及籽鹅的繁衍、孵化、生产提供科学参考。选取二年籽鹅种蛋2 469枚,蛋重为94.8~154.4 g,平均蛋重（123.3±9.5）g;蛋形指数为1.24~1.63,平均蛋形指数1.45±0.05。采用2因素4水平试验设计,将所有种蛋按蛋重与蛋形指数分成16个孵化组（蛋重与蛋形指数分别分为4个水平）,测量每枚种蛋蛋重与蛋形指数,并在蛋壳上做好编号,在相同孵化条件、同一孵化设备中进行两次孵化试验。结果表明,①蛋重<118.0 g组种蛋受精率最高,>131.9 g组次之;>131.9 g组种蛋受精蛋孵化率最高,125.0~131.9 g组次之,且受精蛋孵化率随着蛋重增大升高;125.0~131.9 g组种蛋孵化健雏率最高,>131.9 g组次之;>131.9 g组种蛋孵出鹅雏出生重最大。②蛋形指数在1.47~1.51组种蛋受精率及种蛋孵化健雏率最高,>1.51组次之;1.47~1.51组种蛋受精蛋孵化率最高,1.42~1.46组次之。分析以上结果可得出：籽鹅种蛋蛋重对种蛋受精率、受精蛋孵化率、健雏率、鹅雏出生重有显著影响（P<0.05）,以籽鹅蛋重在125.0~154.4 g为宜;蛋形指数对种蛋受精率、受精蛋孵化率、健雏率亦有显著影响（P<0.05）,对种蛋孵出鹅雏出生重无影响（P>0.05）,以蛋形指数在1.47~1.51为宜。籽鹅种蛋蛋重与蛋形指数对受精率、受精蛋孵化率、健雏率、鹅雏出生重的影响均存在交互作用。其中,蛋形指数对种蛋孵化健雏率的影响较蛋重强,其作为单一因素对鹅雏出生重无影响。以上结果表明,以蛋重或蛋形指数任一因素作为种蛋筛选的依据都不科学,应综合考虑以达到种蛋优选的目的。 相似文献
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Pis T 《British poultry science》2012,53(1):141-144
1. In two partridge species, the grey partridge (Perdix perdix) and chukar (Alectoris chukar), from hatching up to 120?d, the growth rate and development of body mass, wing, tarsus, and bill length were measured and fitted by Gompertz equations. 2. As a typical precocial species, partridges hatched with relatively well developed legs and bills, and wing growth followed a gradual development of thermoregulation. 3. Gompertz growth constants for body mass growth were 0·039 and 0·038 for grey partridges and chukars, respectively. 4. The allometric relationship between tarsus length and body mass followed a geometric similarity (1/3 power) in both grey partridges and chukars. 相似文献
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丝羽乌鸡蛋品质对种蛋受精率和受精蛋孵化率的影响 总被引：2，自引：0，他引：2
试验就丝羽乌鸡蛋品质因素对种蛋受精率和受精蛋孵化率的影响进行了研究.结果显示,哈氏单位和蛋白高度越大,受精率和受精蛋孵化率越高(P＜0.01);蛋重对受精率有一定的影响,蛋重与受精率呈一定正相关关系(r=0.0619,P＜0.1),随着蛋重增加,受精率也会增大;蛋壳强度与受精蛋孵化率呈一定负相关关系(r=-0.1808,P＜0.1),蛋壳强度太大的鸡蛋其受精蛋孵化率反而下降;蛋壳颜色与受精率呈强的负相关关系(r=-0.2848,P＜0.01),即蛋壳颜色越深的鸡蛋其受精率越高;而蛋黄颜色与受精蛋孵化率呈强的负相关关系(r=-0.2328,P＜0.05),即蛋黄颜色越浅的鸡蛋受精蛋孵化率越高;蛋形指数、蛋壳厚度、蛋比重等指标对受精率及受精蛋孵化率未有显著影响. 相似文献
16.
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
17.
珍珠鸡是从国外引进,经人工驯养育成的一个特色品种,其蛋用性能获得了显著进展,为加快蛋产品的开发力度,增加其附加价值,对珍珠鸡蛋和海兰褐鸡蛋蛋品质及营养成分进行比较分析。试验随机抽取新鲜珍珠鸡蛋、海兰褐鸡蛋各100枚,测定其蛋外、内在品质及主要营养成分,采用Duncan新复极差法、皮尔逊相关系数进行比较分析。研究表明,在外部品质方面,海兰褐鸡蛋蛋重高于珍珠鸡蛋15.54g（35.61%）,有极显著差异（P〈0.01）;珍珠鸡蛋蛋壳厚度比海兰褐鸡蛋的蛋壳厚0.14mm（40%）,差异极显著（P〈0.01）;由于蛋重的差异,两种鸡蛋蛋黄比例、蛋白比例、蛋壳比例也均有极显著差异（P〈0.01）。在内在品质方面,两种鸡蛋蛋清pH、蛋黄高度、蛋黄系数均无明显差异;珍珠鸡蛋浓蛋白高度比海兰褐鸡蛋的低3.02mm,有极显著差异（P〈0.01）;浓蛋白系数比海兰褐的高0.87,有显著差异（P〈0.05）;珍珠鸡蛋蛋黄颜色比海兰褐鸡蛋的颜色大一个罗氏比色值,有显著差异（P〈0.05）。在营养成分上,以g/枚为单位,珍珠鸡蛋的主要营养成分除胆固醇高于海兰褐鸡蛋外,其他均低于海兰褐鸡蛋。以g/100g为单位,珍珠鸡蛋水分含量明显低于海兰褐鸡蛋,相差12.62（20.21%）,差异极显著（P〈0.01）,脂肪含量也低于海兰褐鸡蛋,差异显著（P〈0.05）,相差1.34（4.4%）,其它营养成分均高于海兰褐鸡蛋。珍珠鸡蛋是较海兰褐鸡蛋小、壳厚、水分含量低、营养丰富的浓缩型蛋,为珍珠鸡蛋的蛋品开发创造了条件。 相似文献
18.
本试验通过在种鸡的基础饲粮中加入肌苷酸（IMP）来研究其对种鸡产蛋性能、蛋品质和种蛋孵化性能的影响。选择遗传背景相同、体重相近,产蛋率达到5%的20周龄健康AA种鸡864羽,随机分为2组（对照组饲喂基础饲粮;试验组饲喂基础饲粮＋0.5%肌苷酸）,每组6个重复,每个重复72羽,试验期30 d。测定试验期间所有种蛋的平均蛋重、产蛋率和合格蛋率;每组随机选取部分种蛋进行蛋品质测定;于孵化开始第17天,通过照蛋处理统计种蛋受精率,第21天出雏时,计算受精蛋孵化率、入孵蛋孵化率和健雏率。试验结果表明：与对照组相比,试验组种鸡的平均蛋重、产蛋率和合格蛋率均有升高的趋势,但差异不显著（P>0.05）;蛋形指数显著升高（P<0.05）,蛋壳强度、蛋壳厚度和蛋黄颜色显著降低（P<0.05）;受精率、受精蛋孵化率和入孵蛋孵化率显著升高（P<0.05）,健雏率和雏鸡体重有升高的趋势,但差异不显著（P>0.05）。综上,0.5%外源肌苷酸对种鸡的产蛋性能和种蛋孵化性能均有促进作用。 相似文献
19.
GUO Rong CUI Can LI Si-chen ZHU Qing LIU Yi-ping WANG Yan YIN Hua-dong YE Lin ZHANG Lu YUAN Yun-cong WANG Zhen ZHAO Xiao-ling 《中国畜牧兽医》2017,44(10):2994-3000
The purpose of this study was to provide the reference to Jiangxi Green-eggshell breeding through the analysis of laying performance, hatchability and egg quality in the first generation of Jiangxi Green-eggshell layers at 300-days old. 306 Jiangxi Green-eggshell layers and 80 eggs were selected to determine the laying performance, hatchability and egg quality among families, and the correlation between the hatchability and egg quality were analyzed also. The results were as fellows:The average body weight of these hens was 1 596.99 g, the average egg weight was 50.57 g, the average egg-laying number was 14.53, the average fertility rate was 93.69%, the average dead fertile egg rate was 5.55%, the average healthy chick rate was 84.3%, the average dead embryo egg rate was 13.9%, the average egg shape index was 1.28, the average Haugh unit was 71.77, and the average eggshell strength was 4.44 kg/cm2. The healthy chick rate and the egg weight had significant correlation,as well as the eggshell color and the egg shape index (P < 0.05). The healthy chick rate had extremely significantly correlation with the dead fertile egg rate(P < 0.01), as well as the eggshell strength and the eggshell thickness (P < 0.01). Generally, the first generation of Jiangxi Green-eggshell layers had good egg quality, higher laying performance and hatchability, but they still need to be further selected. 相似文献