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. 2020 May 1;98(5):skaa100.
doi: 10.1093/jas/skaa100.

Study on the correlation between BMPR1B protein in sheep blood and reproductive performance

Xiaoyan Zhang  1 , Liping Zhang  1 , Weibo Sun  1 , Xia Lang  2 , Jianping Wu  2 , Caiye Zhu  1 , Jianlei Jia  2 , Jinpen Jin  3 , Younfu La  1 , David P Casper  4
Affiliations

Study on the correlation between BMPR1B protein in sheep blood and reproductive performance

Xiaoyan Zhang et al. J Anim Sci. .

Abstract

Sheep reproductive performance is one of the important economic traits in sheep farming. The bone morphogenetic protein receptor 1B (BMPR1B) gene and protein may play an important role in sheep fertility. This study was to investigate the association of blood BMPR1B protein expression with reproductive performance in sheep. Mongolian sheep with single and twin births and polytocous Small Tail Han sheep were selected due to differences in birth numbers. The BMPR1B mRNA in sheep blood was measured by a reverse transcription-polymerase chain reaction as well as the BMPR1B protein was measured by enzyme-linked immunosorbent assay in blood samples of Mongolian and Small Tail Han sheep. The results demonstrated that blood BMPR1B concentration in Mongolian sheep with twin birth was higher (P < 0.05) than Small Tail Han sheep and Mongolian sheep with single birth. The protein concentration in the anestrus season was higher (P < 0.045) than those in the estrus season for both Mongolian and Small Tail Han sheep. Moreover, BMPR1B concentration in Mongolian sheep increased (P < 0.05) at the age of 6 to 12 mo and that in Small Tail Han sheep increased (P < 0.05) at the age of 3 to 6 mo. The result indicates that the increase in BMPR1B protein concentrations in the blood of Mongolian ewes and Small Tail Han ewes may be beneficial to follicular development, but too high or too low of this blood protein concentration in Mongolian and Small Tail Han sheep is not conducive to ovulation.

Keywords: Mongolian sheep; Small Tail Han sheep; bone morphogenetic protein receptor 1B protein; reproductive performance; sheep blood.

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Figures

Figure 1.
Figure 1.
The expression of BMPR1B mRNA in sheep blood. M: 2,000 base pairs (BP) DNA marker; 1, 2: Mongolia sheep with single birth; 3, 4: Mongolia sheep with twin birth; 5, 6: Polytocous Small Tail Han sheep.
See this image and copyright information in PMC

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