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Recently, the animal breeding team of the livestock institute titled "N-Carbamylglutamate improves reproductive performance forbid alters fecal microbiota forbid serum me.
" Tabolites of primiparous sows during gestation after fixed-time artificial insemination" was published
in the journal Biology (Q1, IF5.
2).
" Tabolites of primiparous sows during gestation after fixed-time artificial insemination" was published
in the journal Biology (Q1, IF5.
2).
"Sow Timing Vaseca Batch Production Technology" was selected as the main agricultural technology in 2021, which is a new sow breeding technology formed in recent years, which effectively solves the problem of low efficiency of
sows.
The use of exogenous reproductive hormones in timed vas technology to promote follicle development and superovulation also caused a decrease in endometrial receptivity in some sows, so that the increase in litter size in timed sperm sows was much lower than the increase in ovulation number
.
If the uterine receptivity of timed sperm sows can be improved, it is possible to further improve the reproductive efficiency
of sows.
The animal breeding team found that some nutritional factors can increase the live litter size and live litter rate of timed insemination sows, and increase the primary weight and uniformity
of piglets to varying degrees.
It was found that N-carbamoyl glutamic acid can increase the body's antioxidant level, improve endometrial receptivity, and improve the reproductive performance
of sows through direct action (increasing the body's N-carbamoyl glutamate level) and indirect effect (changing the composition of intestinal microorganisms and serum metabolites).
This study provides theoretical support and technical basis
for improving the reproductive efficiency of timed sperm sows through feeding management.
sows.
The use of exogenous reproductive hormones in timed vas technology to promote follicle development and superovulation also caused a decrease in endometrial receptivity in some sows, so that the increase in litter size in timed sperm sows was much lower than the increase in ovulation number
.
If the uterine receptivity of timed sperm sows can be improved, it is possible to further improve the reproductive efficiency
of sows.
The animal breeding team found that some nutritional factors can increase the live litter size and live litter rate of timed insemination sows, and increase the primary weight and uniformity
of piglets to varying degrees.
It was found that N-carbamoyl glutamic acid can increase the body's antioxidant level, improve endometrial receptivity, and improve the reproductive performance
of sows through direct action (increasing the body's N-carbamoyl glutamate level) and indirect effect (changing the composition of intestinal microorganisms and serum metabolites).
This study provides theoretical support and technical basis
for improving the reproductive efficiency of timed sperm sows through feeding management.
The results are supported by the National Natural Science Foundation of China, the Beijing Municipal Natural Science Foundation and the Peace Institute, with Associate Professor Feng Tao as the first author and Professor Liu Yan as the corresponding author
.
.
