The differences in intestinal growth and microorganisms between male and female ducks

Chen, Xuefei; Hu, Bo; Huang, Liansi; Cheng, Lumin; Liu, Hehe; Hu, Jiwei; Hu, Shiyan; Han, Chunchun; He, Hua; Kang, Bo; Xu, Hengyong; Zhang, Rongping; Wang, Jiwen; Li, Liang

doi:10.1016/j.psj.2020.10.051

Cited by 6 publications

(2 citation statements)

References 45 publications

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“…The intake of feed and water by each duck was ensured ad libitum during the experiment, and all ducks were subjected to the same routine immunization procedures to meet the National Research Council requirements. Table 3 shows the nutritional standards for the different stages of ducks [ 6 ]. Each treatment randomly selected 30 healthy male ducks at 4, 8 and 13 weeks, respectively (180 in total), weighed and euthanized by cervical dislocation after fasting for 12 h. After dissection, the duodenum, jejunum, ileum and ceca were removed, and the cecal contents were collected and quick-frozen in liquid nitrogen.…”

Section: Methodsmentioning

confidence: 99%

Effects of floor- and net-rearing systems on intestinal growth and microbial diversity in the ceca of ducks

et al. 2022

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Background Rearing systems can affect livestock production directly, but whether they have effects on intestinal growth states and ceca microorganisms in ducks is largely unclear. The current study used Nonghua ducks to estimate the effects of rearing systems on the intestines by evaluating differences in intestinal growth indices and cecal microorganisms between ducks in the floor-rearing system (FRS) and net-rearing system (NRS). Results The values of relative weight (RW), relative length (RL) and RW/RL of the duodenum, jejunum, ileum and ceca in the FRS were significantly higher than those in the NRS during weeks 4, 8 and 13 (p < 0.05). A total of 157 genera were identified from ducks under the two systems, and the dominant microorganisms in both treatments were Firmicutes, Bacteroidetes, Actinobacteria and Proteobacteria at the phylum level. The distribution of microorganisms in the ceca of the two treatments showed significant separation during the three time periods, and the value of the Simpson index in the FRS was significantly higher than that in the NRS at 13 weeks (p < 0.05). Five differential microorganisms and 25 differential metabolic pathways were found in the ceca at week 4, seven differential microorganisms and 25 differential metabolic pathways were found in the ceca at week 8, and four differential microorganisms and two differential metabolic pathways were found in the ceca at week 13. Conclusions The rearing system influences duck intestinal development and microorganisms. The FRS group had higher intestinal RL, RW and RW/RL and obviously separated ceca microorganisms compared to those of the NRS group. The differential metabolic pathways of cecal microorganisms decreased with increasing age, and the abundance of translation pathways was higher in the NRS group at week 13, while cofactor and vitamin metabolism were more abundant in the FRS group.

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Section: Methodsmentioning

confidence: 99%

Effects of floor- and net-rearing systems on intestinal growth and microbial diversity in the ceca of ducks

et al. 2022

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“…The research was conducted on 20 healthy adult male Egyptian geese ( Alopochen egyptiacus ) collected from Assiut governorate. There is significant difference of the weight and length of intestine between male and female (Mobini, 2011) and (Chen et al, 2020). The male samples are more valuable on shop than female samples.…”

Section: Methodsmentioning

confidence: 99%

Morph‐anatomic and histochemical study of ileum of goose (Alopochen egyptiacus) with special references to immune cells, mucous and serous goblet cells, telocytes, and dark and light smooth muscle fibers

Anwar

Abd‐Elhafeez

Abdel-Maksoud

et al. 2021

Microscopy Res & Technique

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The morphological characteristics of the ileum of 20 adult male Egyptian geese were determined using LM, SEM, and TEM. The mean length of the ileum in the male goose was approximately 158.71 mm, representing nearly 10.19% of the total length of the small intestine. The ileum is composed of four layers: mucosa, submucosa, muscular layer, and serosa. The mucosal layer comprises the epithelium, lamina propria, and muscularis mucosa. The mucosa forms finger-like villi and is invaginated at the bases, forming the crypts of Lieberkühn. The ileum is lined by simple columnar epithelium that contains absorptive dark and light enterocytes with two types of goblet cells (mucous and serous varieties) microfold like cells, dendritic reticulum cells, Paneth cells, and a closed type of enteroendocrine cells. The lamina propria has diffuse lymphoid tissue containing lymphocytes, macrophages, mast cells, plasma cells, and heterophils as well as telocytes. The muscularis mucosa comprises circular smooth muscle fibers extending into the core of the villi. The submucosa is a thin layer of elastic-rich connective tissue. The muscular level consists of four layers, with light and dark smooth muscle fibers. We described in detail the structure of all cellular components and histomorphometric measurements. Highlights1. This study investigates the anatomical and histological structures of the ileum of male geese using light and electron microscopy and histomorphometric measurement. This study provides basic information for future experimental studies.2. We have described in detail the structure of all cellular components (including enterocytes, Paneth cells, Entero-endocrine cells, immune cells, telocytes, two types of goblet cells, and dark and light smooth muscle fibers). K E Y W O R D Sdark and light band of smooth muscle fiber, enterocytes, M like cell and immune cells, mucous and serous goblet cells, paneth and enteroendocrine cells, telocytes

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Duck gut metagenome reveals the microbiome signatures linked to intestinal regional, temporal development, and rearing condition

Ma,

Lyu,

Zeng

et al. 2024

iMeta

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The duck gastrointestinal tract (GIT) harbors an abundance of microorganisms that play an important role in duck health and production. Here, we constructed the first relatively comprehensive duck gut microbial gene catalog (24 million genes) and 4437 metagenome‐assembled genomes using 375 GIT metagenomic samples from four different duck breeds across five intestinal segments under two distinct rearing conditions. We further characterized the intestinal region‐specific microbial taxonomy and their assigned functions, as well as the temporal development and maturation of the duck gut microbiome. Our metagenomic analysis revealed the similarity within the microbiota of the foregut and hindgut compartments, but distinctive taxonomic and functional differences between distinct intestinal segments. In addition, we found a significant shift in the microbiota composition of newly hatched ducks (3 days), followed by increased diversity and enhanced stability across growth stages (14, 42, and 70 days), indicating that the intestinal microbiota develops into a relatively mature and stable community as the host duck matures. Comparing the impact of different rearing conditions (with and without water) on duck cecal microbiota communities and functions, we found that the bacterial capacity for lipopolysaccharide biosynthesis was significantly increased in ducks that had free access to water, leading to the accumulation of pathogenic bacteria and antibiotic‐resistance genes. Taken together, our findings expand the understanding of the microbiome signatures linked to intestinal regional, temporal development, and rearing conditions in ducks, which highlight the significant impact of microbiota on poultry health and production.

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The differences in intestinal growth and microorganisms between male and female ducks

Cited by 6 publications

References 45 publications

Effects of floor- and net-rearing systems on intestinal growth and microbial diversity in the ceca of ducks

Effects of floor- and net-rearing systems on intestinal growth and microbial diversity in the ceca of ducks

Morph‐anatomic and histochemical study of ileum of goose (Alopochen egyptiacus) with special references to immune cells, mucous and serous goblet cells, telocytes, and dark and light smooth muscle fibers

Duck gut metagenome reveals the microbiome signatures linked to intestinal regional, temporal development, and rearing condition

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