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Factors Affecting Fattened Ewe and Lamb Performance, Carcass Conformation, Meat...
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Factors Affecting Fattened Ewe and Lamb Performance, Carcass Conformation, Meat Quality, and Flavor

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Small Ruminants".

Deadline for manuscript submissions: 21 March 2025 | Viewed by 3693

Special Issue Editors

Prof. Dr. Xiangpeng Yue

E-Mail Website
Guest Editor
College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
Interests: meat quality; flavor precursors; Y chromosome; genetic regulation; omics
Special Issues, Collections and Topics in MDPI journals
Dr. Long Guo

E-Mail Website
Guest Editor
College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
Interests: ruminant nutrient; feed additives; molecular nutrition; production quality
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The world mutton industry is developing rapidly. The production of high-quality mutton with flavor has become the core direction for producers to cater to the market. Meat quality and flavor are combined traits and governed by many factors, which include genetics, postmortem treatment, nutrition, environment, and their interactions. Using high-throughput omics technology to understand meat quality traits is helpful to produce high-quality mutton. In addition, methods of improving meat products through nutritional management methods to improve performance and intramuscular fat deposition in ewes and lambs are also common.

This Special Issue of Animals, “Factors Affecting Fattened Ewe and Lamb Performance, Carcass Conformation, Meat Quality, and Flavor”, will explore recent advances in ewe and lamb meat quality and flavor from various perspectives, including but not limited to:

  1. Research progress on the effects of genetics, nutrition, environment, and other factors on lamb or ewe meat quality and/or flavor;
  2. Recent developments in identifying and managing factors affecting fattened ewe and lamb performance;
  3. Application of genome and other high-throughput sequencing technologies to study meat-quality-related traits.

Prof. Dr. Xiangpeng Yue
Dr. Long Guo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • sheep
  • flavor precursors
  • meat quality
  • management
  • genetics
  • feed

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Related Special Issue

Published Papers (2 papers)

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Research

34 pages, 17104 KiB  
Article
Temporal Transcriptome Dynamics of Longissimus dorsi Reveals the Mechanism of the Differences in Muscle Development and IMF Deposition between Fuqing Goats and Nubian Goats
by Yuan Liu, Xianfeng Wu, Qian Xu, Xianyong Lan and Wenyang Li
Animals 2024, 14(12), 1770; https://doi.org/10.3390/ani14121770 - 12 Jun 2024
Cited by 1 | Viewed by 1520
Abstract
In this study, we measured the growth performance and intramuscular fat (IMF) content of the Longissimus dorsi (LD) of Fuqing goats (FQs) and Nubian goats (NBYs), which exhibit extreme phenotypic differences in terms of their production and meat quality traits. RNA-Seq analysis was [...] Read more.
In this study, we measured the growth performance and intramuscular fat (IMF) content of the Longissimus dorsi (LD) of Fuqing goats (FQs) and Nubian goats (NBYs), which exhibit extreme phenotypic differences in terms of their production and meat quality traits. RNA-Seq analysis was performed, and transcriptome data were obtained from the LD tissue of 3-month fetuses (E3), 0-month lambs (0M), 3-month lambs (3M), and 12-month lambs (12M) to reveal the differences in the molecular mechanisms regulating the muscle development and IMF deposition between FQs and NBYs. The results showed that a higher body weight and average daily gain were observed in the NBYs at three developmental stages after birth, whereas a higher IMF content was registered in the FQs at 12M. Additionally, transcriptome profiles during the embryonic period and after birth were completely different for both FQs and NBYs. Moreover, DEGs (KIF23, CCDC69, CCNA2, MKI67, KIF11, RACGAP1, NUSAP1, SKP2, ZBTB18, NES, LOC102180034, CAPN6, TUBA1A, LOC102178700, and PEG10) significantly enriched in the cell cycle (ko04110) at E3 (FQs vs. NBYs), and DEGs (MRPS7, RPS8, RPL6, RPL4, RPS11, RPS10, RPL5, RPS6, RPL8, RPS13, RPS24, RPS15, RPL23) significantly enriched in ribosomes (ko03010) at 0M (FQs vs. NBYs) related to myogenic differentiation and fusion were identified. Meanwhile, the differences in glucose and lipid metabolism began at the E3 timepoint and continued to strengthen as growth proceeded in FQs vs. NBYs. DEGs (CD36, ADIROQR2, ACACA, ACACB, CPT1A, IGF1R, IRS2, LDH-A, PKM, HK2, PFKP, PCK1, GPI, FASN, FADS1, ELOVL6, HADHB, ACOK1, ACAA2, and ACSL4) at 3M (FQs vs. NBYs) and 12M (FQs vs. NBYs) significantly enriched in the AMPK signaling pathway (ko04152), insulin resistance (ko04931), the insulin signaling pathway (ko04910), fatty acid metabolism (ko01212), and glycolysis/gluconeogenesis (ko00010) related to IMF deposition were identified. Further, the results from this study provide the basis for future studies on the mechanisms regulating muscle development and IMF deposition in different breeds of goats, and the candidate genes identified could be used in the selection process. Full article
(This article belongs to the Special Issue Factors Affecting Fattened Ewe and Lamb Performance, Carcass Conformation, Meat Quality, and Flavor)
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13 pages, 2671 KiB  
Article
Effects of Tail Vegetable Fermented Feed on the Growth and Rumen Microbiota of Lambs
by Rui Zhou, Lueyu Wang, Yaodong Li, Huihao Wu, Liping Lu, Rongxin Zang and Hongwei Xu
Animals 2024, 14(2), 303; https://doi.org/10.3390/ani14020303 - 18 Jan 2024
Cited by 7 | Viewed by 1671
Abstract
This study explored the impact of integrating fermented feed into the starter diet of lambs, focusing on growth, health, serum antioxidants, immune markers, rumen fermentation, and microbial communities. Thirty-six ten-day-old female Tail Han lambs were randomly divided into three experimental groups, which were [...] Read more.
This study explored the impact of integrating fermented feed into the starter diet of lambs, focusing on growth, health, serum antioxidants, immune markers, rumen fermentation, and microbial communities. Thirty-six ten-day-old female Tail Han lambs were randomly divided into three experimental groups, which were separately fed with alfalfa hay (LA group), tail vegetable fermented feed (LB group), and tail vegetable fermented feed supplemented with 0.1% microbial inoculants (LC group) during the experimental period. This study assessed the influence of fermented feed on various parameters, including growth performance, fiber degradation, rumen fermentation, enzymatic activities, and ruminal histomorphology. The results indicate that compared to the control group, the addition of fermented feed can increase the daily weight gain of lambs. Simultaneously, the addition of fermented feed can enhance the total antioxidant capacity of serum (p < 0.05). The addition of fermented feed promoted the increased height of villi in the duodenum or jejunum of lambs (p < 0.05), and the ratio of villi height to crypt depth in the LB and LC groups was also improved (p < 0.05). The addition of fermented feed increased the richness and diversity of the rumen microbial community in lambs (p < 0.05), primarily increasing the relative abundance of Ruminococcus_1, Ruminococcaceae_UCG-005, Lachnospiraceae, and Lachnospiraceae_NK4A136_group. Full article
(This article belongs to the Special Issue Factors Affecting Fattened Ewe and Lamb Performance, Carcass Conformation, Meat Quality, and Flavor)
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