scholarly journals Suffolk Sheep

2020 ◽  
Author(s):  
Keyword(s):  
Suffolk Sheep

scholarly journals Identifications of immune-responsive genes for adaptative traits by comparative transcriptome analysis of spleen tissue from Kazakh and Suffolk sheep

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hua Yang ◽  
Yong-Lin Yang ◽  
Guo-Qing Li ◽  
Qian Yu ◽  
Jinzeng Yang
Keyword(s):  
High Throughput Sequencing ◽  
Killer Cell ◽  
Cell Lineage ◽  
Production Performance ◽  
Adaptive Traits ◽  
Spleen Tissue ◽  
Indigenous Sheep ◽  
Immunological Mechanisms ◽  
Iga Production ◽  
Suffolk Sheep

AbstractAridity and heat are significant environmental stressors that affect sheep adaptation and adaptability, thus influencing immunity, growth, reproduction, production performance, and profitability. The aim of this study was to profile mRNA expression levels in the spleen of indigenous Kazakh sheep breed for comparative analysis with the exotic Suffolk breed. Spleen histomorphology was observed in indigenous Kazakh sheep and exotic Suffolk sheep raised in Xinjiang China. Transcriptome sequencing of spleen tissue from the two breeds were performed via Illumina high-throughput sequencing technology and validated by RT-qPCR. Blood cytokine and IgG levels differed between the two breeds and IgG and IL-1β were significantly higher in Kazakh sheep than in Suffolk sheep (p < 0.05), though spleen tissue morphology was the same. A total of 52.04 Gb clean reads were obtained and the clean reads were assembled into 67,271 unigenes using bioinformatics analysis. Profiling analysis of differential gene expression showed that 1158 differentially expressed genes were found when comparing Suffolk with Kazakh sheep, including 246 up-regulated genes and 912 down-regulated genes. Utilizing gene ontology annotation and pathway analysis, 21 immune- responsive genes were identified as spleen-specific genes associated with adaptive traits and were significantly enriched in hematopoietic cell lineage, natural killer cell-mediated cytotoxicity, complement and coagulation cascades, and in the intestinal immune network for IgA production. Four pathways and up-regulated genes associated with immune responses in indigenous sheep played indispensable and promoting roles in arid and hot environments. Overall, this study provides valuable transcriptome data on the immunological mechanisms related to adaptive traits in indigenous and exotic sheep and offers a foundation for research into adaptive evolution.

Environmental and genetic effects on weight and visual score traits at postweaning in Suffolk sheep

2014 ◽  
Vol 46 (7) ◽  
pp. 1265-1269 ◽  
Author(s):  
Bárbara Mazetti Nascimento ◽  
Adriana Luiza Somavilla ◽  
Laila Talarico Dias ◽  
Rodrigo de Almeida Teixeira
Keyword(s):  
Genetic Effects ◽  
Visual Score ◽  
Suffolk Sheep

Differences in body temperature, cell viability, and HSP-70 concentrations between Pelibuey and Suffolk sheep under heat stress

2013 ◽  
Vol 45 (8) ◽  
pp. 1691-1696 ◽  
Author(s):  
Rosita Denny Romero ◽  
Arnulfo Montero Pardo ◽  
Hugo Horacio Montaldo ◽  
Ana Delia Rodríguez ◽  
Joel Hernández Cerón
Keyword(s):  
Heat Stress ◽  
Body Temperature ◽  
Cell Viability ◽  
Hsp 70 ◽  
Suffolk Sheep

scholarly journals The Influence of Thermal Stress on Serum Biochemical Profile in Sheep

2021 ◽  
Author(s):  
J. Autukait ◽  
I. Poškienė ◽  
V. Juozaitienė ◽  
R. Antanaitis ◽  
W. Baumgartner ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Biochemical Parameters ◽  
Climatic Factors ◽  
Small Ruminants ◽  
Cortisol Concentration ◽  
Stress Reactions ◽  
Temperature Humidity Index ◽  
Humidity Index ◽  
Group 2 ◽  
Suffolk Sheep

Background: Climatic factors, such as high temperature, high relative humidity, can induce a thermal stress in animals. The phenomenon of mammalian sensitivity to thermal stress, especially in small ruminants, is widely reported in the literature. The present study aimed to analyze temperature and humidity effects on serum metabolic profile and cortisol concentration in sheep. Methods: The experiment was conducted on 40 adult, non-lactating and non-pregnant Suffolk sheep from December 2018 to December 2019. The subgroups were formed by age (two groups): twenty sheep were about 1.5 years old (Group 1) and other twenty - about 3 years old (Group 2). Based on the value of the temperature-humidity index, the following three subgroups were formed: 1) temperature humidity index ≥20; 2) 20 greater than temperature-humidity index greater than 10 and 3) temperature-humidity index less than 10. Blood cortisol concentration and biochemical parameters were measured once per month on the same day, in identical animals. Result: The analysis of biochemical parameters revealed that Group 2 showed significantly higher values for creatinine, phosphorus, zinc and cortisol. All blood indicators, except iron, phosphorus and total bilirubin, were dependent on THI concentration. The highest positive correlation coefficient of cortisol was calculated with urea and total protein. It is concluded that both cortisol and biochemical parameters play a significant role in thermal stress reactions in the Suffolk sheep.

Selection for improved carcass composition in Suffolk Sheep : Interim Results

1990 ◽  
Vol 1990 ◽  
pp. 9-9
Author(s):  
G Simm ◽  
W S Dingwall ◽  
S V Murphy ◽  
J FitzSimons ◽  
W R Brown
Keyword(s):  
Cost Effective ◽  
Carcass Composition ◽  
Short Term ◽  
Genetic Potential ◽  
Selection Indices ◽  
Selection For ◽  
Breed Selection ◽  
Terminal Sire ◽  
Suffolk Sheep

It is likely that returns from lamb production in future will depend, much more than at present, on producing leaner carcasses. There are several short-term changes in management which could produce leaner carcasses. However, In the longer term genetic Improvement, particularly by within-breed selection In terminal sire breeds, is likely to provide permanent, cumulative and cost-effective benefits In carcass composition. In the early 1980s a research project was started at the Edinburgh School of Agriculture, using Suffolk sheep, to examine the genetic potential for Improving carcass composition In terminal sires. The work commenced with an evaluation of techniques for in vivo measurement of carcass composition (Simm, 1987) and derivation of selection indices to incorporate In vivo measurements (Simm and Dingwall, 1989). Since 1985 In vivo measurement and Index selection have been practised In the experimental flock, which now numbers about 220 ewes. This paper reports the interim results of selection.

scholarly journals Disease-associated PrP in the enteric nervous system of scrapie-affected Suffolk sheep

2003 ◽  
Vol 84 (5) ◽  
pp. 1327-1338 ◽  
Author(s):  
Ragna Heggebø ◽  
Lorenzo González ◽  
Charles McL. Press ◽  
Gjermund Gunnes ◽  
Arild Espenes ◽  
...  
Keyword(s):  
Nervous System ◽  
Enteric Nervous System ◽  
Suffolk Sheep

Genetic control of scrapie in Cheviot and Suffolk sheep

1988 ◽  
Vol 123 (6) ◽  
pp. 159-159 ◽  
Author(s):  
J. Foster ◽  
A. Dickinson
Keyword(s):  
Genetic Control ◽  
Suffolk Sheep

scholarly journals Response to selection of a breeding program for Suffolk sheep in the Czech Republic

2018 ◽  
Vol 63 (No. 8) ◽  
pp. 305-312 ◽  
Author(s):  
Ptáček Martin ◽  
Ducháček Jaromír ◽  
Schmidová Jitka ◽  
Stádník Luděk
Keyword(s):  
Czech Republic ◽  
Growth Traits ◽  
Live Weight ◽  
Backfat Thickness ◽  
Sheep Population ◽  
The Czech Republic ◽  
Longissimus Lumborum ◽  
The Difference ◽  
Selection Of ◽  
Suffolk Sheep

Lamb growth performance traits in relation to parental breeding values (BVs) for these traits were evaluated in a purebred Suffolk sheep population in the Czech Republic. The research lasted over 8 years and included 24 886 lambs. Four relevant parental BVs were observed: BV predicted for lamb live weight direct effect (BVLW-DE), BV predicted for lamb live weight maternal effect (BVLW-ME), BV predicted for lamb musculus longissimus lumborum et thoracis depth (BV-MLLT), and BV predicted for lamb backfat thickness (BV-BT). The lamb live weight (LW; kg), musculus longissimus lumborum et thoracis depth (MLLT; mm), and backfat thickness (BT; mm) were assessed at 100 days of age. A dataset was created using the most current parental BVs for each year (2007–2014) and subsequent growth traits of their lambs in the next season (2008–2015). Linear regressions showed an increased tendency when one point in dam BVs was associated with an increase in lamb LW (0.393 kg; P &lt; 0.01 in BVLW-DE and 0.090 kg; P &lt; 0.05 in BVLW-ME), MLLT (0.340 mm; P &lt; 0.01 in BV-MLLT), or BT (0.243; P &lt; 0.01 mm in BV-BT). Lower (but significant – P &lt; 0.01) values on linear regression were detected for sire BVs, when 0.135 kg of LW, 0.217 mm of MLLT, and 0.214 mm of BT corresponded to 1-point increases of BVLW-DE, BV-MLLT, or BV-BT. This was confirmed by ANOVA evaluation, especially for LW and MLLT traits. Maximal differences (P &lt; 0.05) in lamb LW were 1.84 kg or 0.88 kg regarding to dam or sire BVLW-DE groups. Similarly, the difference (P &lt; 0.05) in lamb MLLT reached 0.82 mm in dam BV-MLLT, while 0.57 mm was detected in sire BV-MLLT groups. These results have practical implications for the objectives of selection schemes used in the Suffolk sheep population in the Czech Republic.

A Morphologic and Biochemical Evaluation of the Spider Syndrome in Suffolk Sheep

1988 ◽  
Vol 17 (4) ◽  
pp. 289-300 ◽  
Author(s):  
D. L. Troyer ◽  
D. L. Thomas ◽  
L. E. Stein
Keyword(s):  
Biochemical Evaluation ◽  
Suffolk Sheep
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