A study on the optimum dietary crude protein level for laying Shao ducks;

The mechanism of growth in Shao duck was investigated by measurement of hormones relative to growth.

The properties of Shao duck pituitary luteinizing hormone releasing hormone (LHRH) receptors were analyzed in pituitary membrane preparation and isolated pituitary cells prepared by enzymatic dispersion with collagenase and trypsin, by using a superagonist analog of (D Lys 6)LHRH.

Effect of Daidzein on Laying Performance of Shaoxing Ducks and Mechanisms of Estrogen Receptor Mediated Pathway Involved;

Shaoxing ducks raised in long-day (LD) or short-day photoperiods (SD) matured at different ages.

These results suggested that leptin may serve as a permissive signal for the sexual maturation,and IGF-I is involved not only in the growth regulation,but also in the mechanisms to initiate and maintain egg lay in Shaoxing ducks.

Effect of different crude protein levels in the diets on laying egg performance of laying Shaoxing ducks;

Developmental changes of FSH-R and LH-R mRNA in the ovary of prepubertal Shaoxing ducks;

Effect of dietary protein levels in the rearing period on egg laying performance of Shaoxing ducks;

Study on the optimum dietary energy level for laying Shao ducks;

Two hundred and twenty five 170-day-old laying Shao ducks were randomly divided into 5 groups which including 3 repetitions during 28 days of experiment.

Comparison of serum alkaline phosphatase polymorphisms of Shaoxing duck and Gaoyou duck;

Cloning,expression, and activity determination of Shaoxing duck IFN-α gene;

Expression of GnRH-I mRNA in pineal gland of Shaoxing Duck;

Comparison of laying performances and serum levels of some hormones and enzyme activities between two lines of Shaoxing ducks;

Gonadotrophin-releasing hormone-1 (GnRH-I)and estrogen receptor-β (ER-β) mRNA expression in the ovary of Shaoxing ducks between 1 and 90 post hatching were measured by semi-quantitative RT-PCR using β-actin as an internal standard.