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Trophic Effect of Bee Pollen on Small Intestine in Broiler Chickens
Heng Wang,Jue Wang,Shenghe Li,Qifa Wang,Baozhong Xin 한국식품영양과학회 2007 Journal of medicinal food Vol.10 No.2
In this study, the effects of bee pollen on the development of digestive organs were evaluated in broiler chick-ens. A total of 144 1-day-old AA broiler chickens were randomly and equally divided into two groups, assigned as the con-trol group and the pollen group, respectively. The control group was fed with a basic diet, while the pollen group was fedwith a basic diet supplemented with 1.5% bee pollen over a period of 6 weeks. At the end of each week, the digestive organswere obtained for comparison from 12 broilers randomly selected from each group. The results demonstrated that comparedto the control group, the small intestine villi from the duodenum, jejunum, and ileum were longer and thicker in the pollengroup. This difference was more significant during early development, especially through the first 2 weeks. Bee pollen in-creased the length of the villi by 37.1% and 29.4% in the duodenum, 28.1% and 33.7% in the jejunum, and 18.6% and 16.2%in the ileum in week 1 and 2, respectively. Furthermore, the small intestinal glands were developed at a higher density in thepollen group, and the depth of the glands was significantly increased by bee pollen in the first 2 weeks. These findings sug-gest that bee pollen could promote the early development of the digestive system and therefore is a potentially beneficial foodsupplement for certain conditions, such as short bowel syndrome.
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Jingen Xu,Chonglong Wang,Erhui Jin,Youfang Gu,Shenghe Li,Qinggang Li 한국유전학회 2018 Genes & Genomics Vol.40 No.4
Intramuscular fat (IMF) content is an important trait closely related to meat quality, which is highly variable among pig breeds from diverse genetic backgrounds. High-throughput sequencing has become a powerful technique for analyzing the whole transcription profiles of organisms. In order to elucidate the molecular mechanism underlying porcine meat quality, we adopted RNA sequencing to detect transcriptome in the longissimus dorsi muscle of Wei pigs (a Chinese indigenous breed) and Yorkshire pigs (a Western lean-type breed) with different IMF content. For the Wei and Yorkshire pig libraries, over 57 and 64 million clean reads were generated by transcriptome sequencing, respectively. A total of 717 differentially expressed genes (DEGs) were identified in our study (false discovery rate < 0.05 and fold change > 2), with 323 up-regulated and 394 down-regulated genes in Wei pigs compared with Yorkshire pigs. Gene Ontology analysis showed that DEGs significantly related to skeletal muscle cell differentiation, phospholipid catabolic process, and extracellular matrix structural constituent. Pathway analysis revealed that DEGs were involved in fatty acid metabolism, steroid biosynthesis, glycerophospholipid metabolism, and protein digestion and absorption. Quantitative real time PCR confirmed the differential expression of 11 selected DEGs in both pig breeds. The results provide useful information to investigate the transcriptional profiling in skeletal muscle of different pig breeds with divergent phenotypes, and several DEGs can be taken as functional candidate genes related to lipid metabolism (ACSL1, FABP3, UCP3 and PDK4) and skeletal muscle development (ASB2, MSTN, ANKRD1 and ANKRD2).
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