Publications by authors named "Long Che"

Article Synopsis
  • - The study explored how different dietary ratios of linseed and soybean oils affected egg quality and health in 70-week-old Jinghong laying hens, mixing them into four groups for a 4-week period with varying oil ratios.
  • - No significant differences were found in egg production or overall feed intake among the groups, but the T2 group (2:1 linseed to soybean oil) exhibited higher follicle counts, and the T3 group (1:2 ratio) showed better albumen height and antioxidant enzyme activity compared to the T4 group (all soybean oil).
  • - The findings indicated that a 1:2 ratio of linseed to soybean oil improved egg quality by enhancing antioxidant capacity and reducing oxidative stress in the
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  • High pulse discharge breakage is an emerging technique showing promise in effectively crushing concrete, although its mechanisms need further exploration.
  • A study was conducted with 27 tests examining how different factors (applied voltage, pulse number, and electrode gap) affect the dynamic elastic modulus loss (DEML) of concrete during high voltage pulse discharge (HVPD).
  • Results indicate that increasing the pulse number significantly improves DEML by up to 12.9%, with a maximum DEML of 219.73 ± 9.58 MPa achieved, suggesting a 25.19% enhancement in concrete crushing efficiency.
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The high incidence of oxidative stress in sows during late gestation and lactation affects mammary gland health, milk yield, and milk quality. Recently, we found that supplementing maternal diets with 1% taurine improved antioxidant capability and enhanced growth performance in offspring; however, the mechanisms underlying these are unknown. This study aimed to investigate the cytoprotective effects and the mechanism of taurine in mitigating oxidative stress in porcine mammary epithelial cells (PMECs).

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An insufficient energy supply to intestinal epithelial cells decreases production performance in weaned piglets. Triglycerides are the main energy source for intestinal epithelial cells in piglets. The present study aimed to investigate the effects and mechanisms of valine supplementation on triglyceride synthesis in porcine intestinal epithelial (IPEC-J2) cells.

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Milk fat is a major source of energy that determines the growth of neonates. Recently, studies have shown that valine is closely related to lipid metabolism. Therefore, this study was designed to investigate the effects of dietary valine supplementation on milk fat synthesis using a pig model.

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Background: Mammary gland development during late gestation in gilts is a major factor that alters the composition of colostrum and growth performance of piglets. Plasma valine is taken up and metabolized extensively by the mammary gland; however, the effects of valine on mammary gland development during late gestation are still unclear. Thirty primiparous gilts were divided into three treatment groups ( = 10) and received one of the three diets starting on day 75 of gestation until the day of farrowing.

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Mammary gland development during late pregnancy in sows is a major factor affecting the composition of colostrum and milk and the pre-weaning growth of piglets, while valine is essential for protein and nitrogen metabolism in mammary gland of sow. However, the effects of valine and its underlying mechanism on mammary gland development during late pregnancy are still unclear. Here, we hypothesized that dosage of dietary valine during late pregnancy will affect protein synthesis of colostrum in gilts.

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Birth is one of the most important events of animal production agriculture, as newborns are abruptly forced to adapt to environmental and nutritional disruptions that can lead to oxidative damage and delay in growth. Taurine (Tau) is an important regulator of oxidative stress and possesses growth-enhancing properties. In the present study, we investigated the effects of dietary Tau supplementation in gilts during late gestation and lactation on the growth performance of piglets by assessing intestinal morphology and barrier function, and oxidative stress status.

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Lactating mammary glands are among the most active lipogenic organs and provide a large percentage of bioactive lipids and calories for infant growth. The branched-chain amino acid (BCAA) valine is known to modulate fatty acids synthesis in adipose tissue; however, its effects on fat metabolism and the underlying mechanisms in mammary glands remain to be determined. Valine supplementation during late pregnancy significantly increased the contents of total milk fat, triglyceride, sphingomyelin, and polyunsaturated fatty acids in the colostrum of gilts.

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Primordial follicle formation represents a critical phase of the initiation of embryonic reproductive organ development, while the primordial follicle transition into primary follicle determines whether oestrus or ovulation will occur in female animals. To identify molecular mechanism of new proteins which are involved in ovarian development, we employed 2D-DIGE to compare the protein expression profiles of primordial follicles and primary follicles of fetal ovaries in pigs. Fetal ovaries were collected at distinct time-points of the gestation cycle (g55 and g90).

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  • Maternal nutrition, specifically energy intake, significantly impacts fetal growth, with a pig model used to explore this connection through placental protein analysis.
  • The study found that fetuses in the normal-energy diet group showed more variation in weight and glucose levels compared to the more consistent weights of those on a high-energy diet.
  • Key differences in protein expression related to lipid and energy metabolism were identified, suggesting that maternal nutrition influences fetal weight by modifying placental functions.
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Within-litter uniformity in pigs is a major factor affecting piglet survival and growth performance. We know that Meishan (MS) gilts have higher piglet survival rate than Large White (LW) gilts because their foetal weight is less varied. To understand the molecular basis for placental nutritional transport during the late stages of gestation in LW and MS, we employed the isobaric tags for relative and absolute quantification (iTRAQ) method to investigate alterations in the placental proteomes of LW and MS gilts on gestational day 90.

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Excessive fat intake is a global health concern as women of childbearing age increasingly ingest a high fat diet. We therefore determined the association of a maternal high fat diet in pregnancy with offspring ovarian health during the gestation and postnatal female offspring in pig a model. Thirty-two Yorkshire gilts with similar bodyweights mated at the third estrus were randomly assigned to two nutrition levels of either a control (CON, crude fat: 7.

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It has been suggested that maternal nutrition during gestation is involved in an offspring's intestinal development. The aim of this study was therefore to evaluate the effects of maternal energy on the growth and small intestine development of offspring. After mating, twenty gilts (Large White (LW) breeding, body weight (BW) at 135.

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  • The study aimed to examine how high fat intake during pregnancy affects fetal intestinal development and gene expression.
  • Eight pregnant gilts were fed either a control diet or a high fat diet from days 30 to 90 of gestation, with intestinal samples taken from the fetuses for analysis.
  • Results indicated that high fat intake increased fetal weight and lactase activity, but also led to significant changes in gene expression related to immune response and metabolism, impacting various signaling pathways.
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This experiment was designed to determine the effects of variations in dietary energy intake on reproductive performance and gene expression of luteal and endometrium tissues in Large White (LW) and Meishan (MS) gilts during early and middle pregnancy. After insemination, 32 LW gilts were assigned to high and low (HE and LE, 14.23 and 12.

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Time-dependent expression of functional proteins in fetal ovaries is important to understand the developmental process of the ovary. This study was carried out to enhance our understanding of the developmental process of porcine fetal ovaries and to better address the differences in fetal ovary development of local and foreign pigs. The objective of the present study is to test the expression of key proteins that regulate the growth and development of fetal ovaries in Meishan and Yorkshire porcine breeds by using proteomics technology.

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