The Effect of the Feeding System on Fat Deposition in Yak Subcutaneous Fat

Xiong, Lin; Pei, Jie; Bao, Pengjia; Wang, Xingdong; Guo, Shaoke; Cao, Mengli; Kang, Yandong; Yan, Ping; Guo, Xian

doi:10.3390/ijms24087381

Cited by 3 publications

(1 citation statement)

References 53 publications

(53 reference statements)

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“…This was in line with that reported by Brambillasca et al [ 16 ] and may explain why the growth performance of pigs fed whole-plant corn silage was better than that of control animals. The main reason for the elevated serum GLU levels in Hezuo pigs may be related to the rate of fattening and backfat thickness and the fact that the glycerol and fatty acids needed for TG synthesis are mainly generated from GLU [ 21 ]. The GLU present in the blood of animals is obtained by two means.…”

Section: Discussionmentioning

confidence: 99%

Effects of Whole-Plant Corn Silage on Growth Performance, Serum Biochemical Indices, and Fecal Microorganisms in Hezuo Pigs

Yin,

Wang,

Yan

et al. 2024

Animals

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In this study, we investigated the effects of the dietary inclusion of different proportions of whole-plant corn silage on growth performance, serum biochemical indexes, and intestinal microorganisms in Hezuo pigs. Thirty-two two-month-old Hezuo pigs (body weight: 7.88 ± 0.81 kg) were randomly divided into four groups of eight pigs (half male, half female) each. The control (CON) group received a basal diet, while the three experimental groups were fed the basal diet, part of which had been replaced with 5%, 10%, and 15% whole-plant corn silage, respectively. The experiment lasted for 127 days, including 7 days of pre-testing and 120 days of formal testing. At the end of the experiment, blood and fecal samples were collected. Compared with the CON group, the feed-to-gain ratio was significantly lower in the 10% test group (p < 0.05), whereas the total protein, albumin, triglyceride, and glucose contents were significantly higher (p < 0.05). No significant differences in total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, creatinine, urea, aspartate aminotransferase, and alanine aminotransferase were observed among the groups (p > 0.05). The addition of whole-plant corn silage to the diet significantly increased alpha diversity in the pig gut based on 16S rRNA gene sequencing. The principal coordinate analysis results showed significant clustering of the different groups (p < 0.05). At the phylum level, the addition of whole-plant corn silage to the diet significantly decreased (p < 0.05) the relative abundance of Firmicutes and significantly increased (p < 0.05) that of Bacteroidetes. At the genus level, the relative abundance of Streptococcus significantly decreased (p < 0.05) with increasing silage supplementation levels, whereas species diversity significantly increased (p < 0.05). In conclusion, 10% is the recommended inclusion ratio for whole-plant corn silage in the diets of pigs.

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Section: Discussionmentioning

confidence: 99%

Effects of Whole-Plant Corn Silage on Growth Performance, Serum Biochemical Indices, and Fecal Microorganisms in Hezuo Pigs

Yin,

Wang,

Yan

et al. 2024

Animals

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Lipidomics revealed the superior anti‐obesity effect of brown adipose tissue in obese mice

Jia,

Yue,

et al. 2024

Euro J Lipid Sci & Tech

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Brown adipose tissue (BAT) has been reported to possess the potential to ameliorate diet‐induced obesity. However, the molecular mechanism of BAT activation in alleviating obese states remains unclear. This study investigated the physiology and BAT index of high‐fat diet‐induced and normal chow mice after 3 weeks of mild cold treatment. Body weights and lipid accumulations in BAT and white adipose tissue were significantly decreased by cold treatment. Lipidomics analysis showed that chronic cold treatment caused the remodeling of major lipid classes in BAT, especially species and phospholipid content, plus the mitochondrial morphology. Evidence indicated mitochondrial biogenesis and thermogenesis, and all the effects caused by BAT activation were more pronounced in obese mice. Taken together, our study revealed that phospholipid metabolism is the fundamental requirement in the anti‐obesity effect of BAT.Practical Applications: Chronic mild cold treatment induced a significant alteration of lipid species and content in BAT and improvement in overall lipid metabolism. Apart from biogenesis and thermogenesis, the categories and morphology of mitochondria were also significantly altered. Though obese mice have inactivated BAT with impaired mitochondria, the superior effect caused by BAT activation on obese mice than control mice indicated the great potential to be evoked. This article may provide lifestyle guidelines for the population with overweight and obesity, especially in teenagers and children.

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The Characterization of Subcutaneous Adipose Tissue in Sunit Sheep at Different Growth Stages: A Comprehensive Analysis of the Morphology, Fatty Acid Profile, and Metabolite Profile

Han,

He,

Yun

et al. 2024

Foods

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Adipose tissue is a crucial economically significant trait that significantly influences the meat quality and growth performance of domestic animals. To reveal the changes in adipose tissue metabolism during the growth of naturally grazing sheep, we evaluated the thickness, adipocyte morphology, fatty acid profile, and metabolite profile of subcutaneous adipose tissue (SAT) from naturally grazing Sunit sheep at 6, 18, and 30 months of age (referred to as Mth-6, Mth-18, and Mth-30, respectively). The fat thickness and adipocyte number were significantly increased with the growth of the sheep (p < 0.05), and the increase of which from Mth-18 to Mth-30 was less than that from Mth-6 to Mth-18. Additionally, the alpha-linolenic acid metabolism was enhanced and fatty acid (FA) elongation increased with growth. The metabolomic analysis revealed 76 differentially expressed metabolites (DEMs) in the SAT in different growth stages. Interestingly, we observed elongation of FAs in lipids correlated with sheep growth. Furthermore, the expression of acylcarnitines was downregulated, and fatty acid amides, aspartic acid, acetic acid and phosphocholine were upregulated in Mth-18 and Mth-30 compared to Mth-6. Altogether, the study found that the difference in SAT in Mth-6 was great compared to Mth-18 and Mth-30. An increase in fat deposition via adipocyte proliferation with the growth of the sheep in naturally grazing. The DEMs of acylcarnitines, fatty acid amides, aspartic acid, acetic acid, and phosphocholine emerged as potential key regulators of adipose tissue metabolism. These findings illustrate the variation in and metabolic mechanism of sheep adipose tissue development under natural grazing, thus providing valuable insights into improving the edible quality of sheep meat and developing the mutton sheep industry.

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The Effect of the Feeding System on Fat Deposition in Yak Subcutaneous Fat

Cited by 3 publications

References 53 publications

Effects of Whole-Plant Corn Silage on Growth Performance, Serum Biochemical Indices, and Fecal Microorganisms in Hezuo Pigs

Effects of Whole-Plant Corn Silage on Growth Performance, Serum Biochemical Indices, and Fecal Microorganisms in Hezuo Pigs

Lipidomics revealed the superior anti‐obesity effect of brown adipose tissue in obese mice

The Characterization of Subcutaneous Adipose Tissue in Sunit Sheep at Different Growth Stages: A Comprehensive Analysis of the Morphology, Fatty Acid Profile, and Metabolite Profile

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