Although many studies have attempted to determine the effect of goose age on egg weight, the relationship remains unclear. We conducted a meta-analysis of the relevant literature in an attempt to provide clarity on this question. We found that goose egg weight changes with age and that he greatest amount of yolk is produced following the second laying season, after which laying performance tends to decline. However, there was considerable heterogeneity among research study results that appears to be caused by ad libitum feed consumption. Interestingly, there have been no studies on the correlation between goose yolk weight and uterine secretions. These parameters change with age and can be easily evaluated through measurements of goose egg component weight in different laying seasons. Following the meta-analysis, we hypothesize that estrogen is a key factor in determining egg weight. Our findings suggest that poultry farms can adjust feed formulations and the duration of light exposure as geese age to optimize egg production. Estrogen concentrations may also be adjusted through diet supplementation as geese age to increase their productive lifespans.

尽管许多研究试图确定鹅龄对蛋重的影响，但这种关系仍不清楚。我们对相关文献进行了荟萃分析，以期弄清楚这个问题。我们发现鹅蛋的重量会随着年龄的增长而变化，第二产蛋季节后蛋黄的产量最大，此后产蛋性能趋于下降。但是，研究研究结果之间存在相当大的异质性，这似乎是随意采办的饲料消耗。有趣的是，还没有关于鹅蛋黄重量与子宫分泌物之间关系的研究。这些参数会随着年龄的变化而变化，并且可以通过测量不同产蛋季节的鹅蛋成分重量来轻松评估。根据荟萃分析，我们假设雌激素是决定蛋重的关键因素。我们的发现表明，随着鹅龄的增长，家禽养殖场可以调整饲料配方和光照时间，以优化产蛋量。随着鹅龄的增长，还可以通过饮食补充来调节雌激素的浓度，以延长其生产寿命。