Chicken meat is an important source of high-quality animal protein. Its consumption continues to grow in both developed and developing countries. Muscle fiber characteristics are key determinants quality quantity. Skeletal muscle a highly plastic tissue that affected by breed differences muscular tissues. However, studies regarding the effects different breeds tissues on fibers traits broilers lacking. In this study, Ross 308 chickens (fast-growing [FG] broilers) Xueshan (slow-growing [SG]...

This study evaluated the effects of muscle fiber characteristics on meat quality traits in 45 female fast- and slow-growing ducks. Three duck breeds at typical market ages were selected slaughtered, including fast-growing ducks (Cherry Valley duck) (Small-sized Beijing Liancheng White duck). M. pectoralis major (PM), m. soleus (SOL), gastrocnemius (GAS) extensor digitorum longus (EDL) used to assess as well properties. The results showed that compositions PM, GAS, EDL muscles only consisted...

Muscle fiber characteristics had beneficial effects on meat masses and quality in broilers. Its number is determined at birth directly affects the growth development of muscle fibers after birth. However, whether different types chickens are has not been fully documented. In this study, 1-day-old Xueshan chicken (slow-growing broiler) Ross 308 broiler (fast-growing were selected, respectively, type distribution, density, size breast (pectoralis major, PM) leg (gastrocnemius, GAS) muscles...

The selection of broilers for augmented growth rate and breast yield has been accompanied by deterioration in meat quality. To characterise the quality differences between slow- (SG) fast-growing (FG), Xueshan Ross 308 chickens were employed to determine mechanisms causing these differences. SG was found display more redness yellowness, higher shear force, pH24h, protein content, with lower intramuscular fat (IMF) content than FG meat. Further, based on comparative phosphoproteomic analysis...

Broodiness is an unfavorable trait associated with the cessation of egg laying. Studies have found that excessive granulosa cell apoptosis and autophagy occur during goose broodiness. Other studies also confirmed oxidative stress important cause autophagy. However, whether occurs broodiness this causes not been fully elucidated. In study, we investigated effects on cells in broody geese. The results showed higher mRNA expression genes related to antioxidative responses (GPX, SOD-1, SOD-2,...

Goose meat is increasingly popular among consumers because of its good quality. The fiber characteristics have been well demonstrated to be key contributing factors quality, and the marketable ages are also closely related However, little known about effect different on quality goose through characteristics. Here, Yangzhou geese (70, 90, 120 d) their were investigated. results showed that only fast-twitch fibers present in breast muscle, irrespective age, few slow-twitch could identified leg...

Recently, free-range poultry production has increased with notable benefits for animal welfare and meat quality traits. Geese, the third-most productive species, have not been studied extensively. This study investigated effects of different systems on muscle fiber characteristics status (feather quality, walking ability, behavioral changes) in Yangzhou geese. A total 180 male geese, aged 28 days, were randomly assigned to either a long-distance pasture system (LDPS, approximately 200 m from...

The proliferation and death of granulosa cells (GCs) in poultry play a decisive role follicular fate egg production. fluid (FF) contains variety nutrients genetic substances to ensure the communication between cells. Exosomes, as new intercellular communication, could carry transport proteins, RNA, lipids react on GCs, which had been found FF various domestic animals. Whether exosomes similar is unclear. In this study, geese, with low production, were chosen, effect GCs was investigated....

Storage time is considered to be one of the most important factors affecting obnoxious odor and microbial spoilage fresh meat. In this study, volatile organic compounds (VOCs) bacterial community structure chilled goose meat during storage were investigated. The results showed that numerous VOCs produced storage, including aldehydes (nonanal, (E)-2-octenal, hexanal, tetradecanal), alcohol (1-octen-3-ol), furan (2-pentylfuran), carboxylic acids (methyl diethyldithiocarbamate), which might a...

The volatile aroma compounds in raw duck meat strongly affect consumers’ purchase decisions and they vary among breeds with different growth rates. In this study, slow-growing (SG) Liancheng White fast-growing (FG) Cherry Valley ducks were selected, their characterized using electric nose gas chromatography-mass spectrometry. Furthermore, a widely targeted metabolomics approach was used to investigate the metabolites associated compounds. results showed that hexanal, nonanal, octanal,...

Marketable age is an important determinant of meat quality. Cherry Valley duck (SM3 medium) the most efficient Pekin-type and widely farmed breed globally. However, whether marketable determines quality ducks not well documented. The objective this study was to investigate effect on proximate composition nutritional profile breast from broiler ducks. Ducks at 28, 38, 42, 45 days old were selected slaughtered, their composition, cholesterol essential mineral compositions, amino acids fatty...

Integrated rice-duck farming (RD) system, which aims to improve the welfare of ducks, has gained popularity in Asian countries. However, effects RD system on carcass and quality traits duck meat have not been evaluated. Here, a paddy field experiment was conducted examine meat. A total 180 Jinding ducklings (7 days old) were randomly divided into 2 rearing systems floor pen (FPR) system. After 11 weeks, 12 ducks from each (6 males females each) used for traits, quality, amino acid, fatty...

The quality of poultry goose meat is closely related to its marketable ages, with varying increasing age. Geese two ages (70-day and 120-day) were selected understand the mechanisms behind this effect. Darker redder meat; chewier higher water-holding capacity (WHC) as well greater protein intramuscular fat (IMF) content observed in breast muscle (BM) 120-day-old geese compared 70-day-old geese. Quantitative phosphoproteomics revealed up-regulated phosphorylated myofibrillar proteins...

The photoperiod is the predominant environmental factor that governs seasonal reproduction in animals; however, underlying molecular regulatory mechanism has yet to be fully elucidated. Herein, Yangzhou geese (Anser cygnoides) were selected at spring equinox (SE), summer solstice (SS), autumn (AE), and winter (WS), regulation of via light-driven cyclical secretion pineal melatonin was investigated. We show there variations laying rate GSI, while ovarian area decreased 1.5-fold from SS AE....

This study was conducted to investigate the effects of different free-range systems on growth performance, carcass traits, and meat quality geese. Grass pasture zones in area were selected, 28 d-old male Yangzhou geese with similar body weights (1.57 ± 0.12 kg) randomly allocated one three conditions: (A) conditions apron during 9:00 a.m.–4:00 p.m. (10–20 m from shed grass pasture); (B) outer range a.m. 4:00 (beyond 50 (C) barn system. Free range-reared had higher weight gain after 42 days...

Eggshell is a crucial indicator of egg quality. Pimpled eggs (PE) type eggshell defect are characterized by low strength, leading to substantial financial losses. formation occurs in the uterine fluid (UF), which contains required ions and matrix proteins However, underlying mechanisms PE remain poorly understood. In this study, we analyzed quality PE, normal (NE) examining differences UF from hens producing NE (n = 6 each). This 2-wk-long assessment involved histomorphological proteomics...

The nutritive profile is a reliance meat quality trait and often closely related to marketable ages in production. Goose herbivorous poultry with the being rich values. In this study, geese from different (70, 120 300-day-old) were chosen, proximate composition, amino acids, fatty acids metabolomic profiles of breast determined. Notably, 300-day-old contained richer total essential (Thr, Lys others), umami (Asp, Glu Arg) polyunsaturated acid (C18:2n6c) than younger geese. Using widely...

Goose (Anas cygnoides), as a typical species domesticated from migratory bird, has maintained the capability of depositing excess lipid and preferentially accumulating fat within abdomen subcutaneous, which not only leads to decrease in yield meat product, but also affects feed conversion rate. Here, an experiment was conducted examine difference developmental dynamics between subcutaneous (SAT) abdominal adipose tissues (AAT) goose. The results showed that SAT could be clearly observed at...

Broody behavior is regulated by hypothalamic prolactin secretion, which seriously affects egg production in poulty production. Numerous studies have provided evidence that animal governed dynamic bidirectional communication between specific gut bacteria and their host via the Brain-Gut-Microbiome Axis. However, little research focused on how microbiota influence broody poultry. In this study, Zhedong white geese laying brooding phases were selected. Ten differentially abundant cecum detected...

Goose (Anser cygnoides) are highly broody with low egg production, and large number of granulosa cells undergo apoptosis during broodiness. Our previous study has found that miR-34c-5p was abundant in the ovary goose broodiness phenotype. However, mechanism regulates function remains unclear. Here, we demonstrated had higher levels than laying by qRT-PCR. The dual luciferase reporter assay showed Bcl2 identified as a direct target miR-34c-5p, which could be negatively regulated miR-34c-5p....

Egg laying is an important reproductive behavior of female poultry. Here, we investigated the and clutch traits different goose breeds, specifically, Zhedong white geese (Anser cygnoides), Sichuan cygnoides) Hungarian anser). A total 108 in their first year were selected. Their rhythm was monitored daily by video cameras during egg-laying period. The results showed that prenatal included nest hunting, site selection nesting, as well crouching, anal contraction until oviposition postnatal...

This study was conducted to investigate the potential effects of active immunization against recombinant-derived goose inhibin-α (INH-α), anti-Müllerian hormone (AMH), and prolactin (PRL) fusion protein on broodiness onset egg production in geese. The purified proteins (INH-α, AMH, PRL) were prepared using a prokaryotic expression system. Female Zhedong geese (10 mo old) randomly assigned one 4 treatments raised separate pens. actively immunized with recombinant INH-α, or PRL, respectively,...

Salmonella Entertidis (SE) often causes persistent infections and egg contamination in laying ducks. Hcp, the core structural effector proteins of Type VI Secretion System (T6SS) SE, contributes to bacterial invasion, adhesion virulence. However, little is known about effect Hcp on host's infection responses incidences duck. Herein, we generated an hcp deletion mutant SE MY1△hcp detected its ability invade duck granulosa cells (dGCs) contaminate eggs. In comparison with MY1-infected group,...

T-2 toxin is a dangerous natural pollutant and widely exists in animal feed, often causing toxic damage to poultry, such as slow growth development, immunosuppression, death. Although geese are considered the most sensitive poultry toxin, exact caused by elusive. In present study, total of forty two 1-day-old healthy Yangzhou male goslings were randomly allotted seven diets contaminated with 0, 0.2, 0.4, 0.6, 0.8, 1.0, or 2.0 mg/kg for 21 d, effects exposure on performance, feather quality,...

Geese have strong brooding abilities, which severely affect their egg-laying performance. Phosphorylation is widely involved in regulating reproductive activities, but its role goose behavior unclear. In this study, we investigated differences the phosphoprotein composition of ovarian tissue between laying and geese. Brooding geese exhibited follicular atrophy, as well significant oxidative stress granulosa cell apoptosis. We identified 578 highly phosphorylated proteins 281 lowly proteins,...