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You searched for: Journal Small ruminant research Remove constraint Journal: Small ruminant research Publication Year 2018 Remove constraint Publication Year: 2018 Subject Merino Remove constraint Subject: Merino
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1. Characterization of the commercial growth curves of Spanish Merino, Fleischschaf, and crossbred lambs in an associative economy context

Author:
López, B.; Lupi, T.M.; León, J.M.; López, F.; Agudo, B.; Delgado, J.V.
Source:
Small ruminant research 2018 v.164 pp. 8-14
ISSN:
0921-4488
Subject:
Merino; breeding programs; crossbreds; data collection; genotype; growth curves; herds; heterosis; lambs; models; selection criteria; sires
Abstract:
... We examined commercial growth curves of three sheep genotypes in a Second-Grade cooperative context, with Spanish Merino used as a maternal base, Fleischschaf as a paternal base, and crossbred (Fleischschaf × Merino) lambs as the commercial product. We included weight-age data collected from 2013 to 2016 for 9846 lambs of both sexes belonging to 14 herds across the three genotypes. Five of the mos ...
DOI:
10.1016/j.smallrumres.2018.04.009

2. Comparative proteome analysis of skeletal muscle between Merino and Tsigai lambs

Author:
Gulyas, Gabriella; Pohoczky, Krisztina; Csosz, Eva; Simon, Adam; Javor, Andras; Czegledi, Levente
Source:
Small ruminant research 2018 v.158 pp. 35-41
ISSN:
0921-4488
Subject:
Merino; carbohydrates; enzymes; gene expression; genes; glycolysis; lambs; longissimus muscle; mass spectrometry; messenger RNA; myoglobin; protein content; proteome; proteomics; quantitative polymerase chain reaction; skeletal muscle; structural proteins; two-dimensional gel electrophoresis
Abstract:
... Proteomic methods allow detecting breed-specific differences at protein level. The objective of the present study was to compare muscle proteome profiles of Hungarian Merino and Tsigai sheep breeds by two dimensional gel electrophoresis and mass spectrometry based protein identification. Approximately 327 protein spots were detected in musculus longissimus dorsi and 14 protein spots, identified as ...
DOI:
10.1016/j.smallrumres.2017.12.003

3. Comparison of the myostatin (MSTN) gene in Russian Stavropol Merino sheep and New Zealand Merino sheep

Author:
Trukhachev, V.; Yatsyk, O.; Telegina, E.; Krivoruchko, A.; Zhou, H.; Hickford, J.G.H.
Source:
Small ruminant research 2018 v.160 pp. 103-106
ISSN:
0921-4488
Subject:
DNA fragmentation; Merino; amino acid sequences; amino acids; meat production; myostatin; rams; sequence diversity; single nucleotide polymorphism; stop codon; New Zealand
Abstract:
... The aim of this research was to study the myostatin gene (MSTN) in Russian Stavropol Merino sheep and compare them with Merino sheep from New Zealand (NZ). Thirty rams of the Stavropol Merino breed and ten NZ Merinos were investigated. In order to detect sequence variation in MSTN, enrichment and sequencing of targeted DNA fragments was undertaken using NimbleGen technology. Nucleotide sequence va ...
DOI:
10.1016/j.smallrumres.2018.01.005

4. Cutaneous hypersensitivity reactions against unfed tick larval extract of Rhipicephalus evertsi in South African Mutton Merino, Namaqua Afrikaner and Dorper sheep

Author:
Thutwa, Ketshephaone; van Wyk, Japie B.; Dzama, Kennedy; Scholtz, Ansie J.; Cloete, Schalk W.P.
Source:
Small ruminant research 2018 v.169 pp. 113-117
ISSN:
0921-4488
Subject:
Dorper; Merino; Rhipicephalus evertsi; cell-mediated immunity; ears; hypersensitivity; larvae; mutton; sheep; tick infestations; ticks
Abstract:
... Indigenous Namaqua Afrikaner (NA) sheep have been reported to be more resistant to tick infestation than the commercial Dorper and South African Mutton Merino (SAMM) breeds. The aim of this study was to compare cutaneous reactions to unfed tick larval extract (ULE) of Rhipicephalus evertsi in the three breeds to verify if such reactions are related to resistance/susceptibility to tick infestation. ...
DOI:
10.1016/j.smallrumres.2018.07.020

5. Effects of feeding fresh bergamot (Citrus Bergamia Risso) pulp at up to 35% of dietary dry matter on growth performance and meat quality from lambs

Author:
Scerra, M.; Foti, F.; Caparra, P.; Cilione, C.; Violi, L.; Fiammingo, G.; D’Agui’, G.; Chies, L.
Source:
Small ruminant research 2018 v.169 pp. 160-166
ISSN:
0921-4488
Subject:
Citrus bergamia; Merino; alpha-linolenic acid; average daily gain; carcass weight; cold storage; color; conjugated linoleic acid; diet; docosapentaenoic acid; dry matter intake; feed conversion; grains; growth performance; lamb finishing; lambs; lipid peroxidation; meat; meat quality; pulp; vaccenic acid
Abstract:
... The effect of fresh bergamot pulp (FBP) was tested on lamb performances and meat quality. Twenty-seven Italian Merino ram-lambs were allotted into three experimental groups and for 90 days were fed a cereal-based concentrate diet (BERG-0) or two diets in which cereals were replaced with 20% (BERG-20) or 35% (BERG-35) FBP on DM basis. No significant differences between treatments were found for fin ...
DOI:
10.1016/j.smallrumres.2018.09.016

6. Estimation of genetic parameters and comparison of breeding values for body weight with different models in a South African Merino stud

Author:
Nemutandani, K.R.; Snyman, M.A.; Olivier, W.J.; Visser, C.
Source:
Small ruminant research 2018 v.169 pp. 34-41
ISSN:
0921-4488
Subject:
Merino; adults; animal models; birth weight; breeding value; data collection; ewes; flocks; genetic correlation; genetic variation; heritability; maternal effect; multivariate analysis; statistical models; weaning; weaning weight
Abstract:
... Data collected on body weight from birth to 5 years of age in the Grootfontein Merino stud from 1968 to 2012 were analysed with univariate, multivariate and repeatability animal models. The estimated breeding values (EBVs) were compared to determine the most suitable statistical models for the estimation of EBVs. Measures of body weights included birth weight (BW), body weight at 42 days of age (W ...
DOI:
10.1016/j.smallrumres.2018.10.007

7. Extra dietary vitamin E – selenium as a mitigation strategy against housing-induced stress in Dohne Merino lambs: Effect on growth performance, stress biomarkers, and meat quality

Author:
Maraba, Kgadi Pauline; Mlambo, Victor; Yusuf, Azeez Olanrewaju; Marume, Upenyu; Hugo, Arno
Source:
Small ruminant research 2018 v.160 pp. 31-37
ISSN:
0921-4488
Subject:
Merino; antioxidants; biomarkers; carcass quality; carcass weight; color; dressing percentage; erythrocytes; fatty acid composition; feed intake; feed supplements; glucose; glutathione peroxidase; growth performance; hemoglobin; lambs; males; meat; meat quality; oxidative stress; pH; psychosocial factors; selenium; shelf life; slaughter weight; superoxide dismutase; temperature; vitamin E; water holding capacity; weight gain
Abstract:
... Deprivation of social contact through solitary confinement has the potential to induce stress in farm animals. Current evidence that housing-induced stress contributes to suboptimal welfare, growth performance and meat quality in sheep is neither ubiquitous nor convincing. This study, therefore, investigated the effect of social stress, as induced by single-pen (isolated) and paired-pen (socially ...
DOI:
10.1016/j.smallrumres.2018.01.009

8. Genetic relationships of breech cover, wrinkle and wool coverage scores with key production traits in Australian Merino sheep

Author:
Hatcher, S.; Preston, J.W.V
Source:
Small ruminant research 2018 v.164 pp. 48-57
ISSN:
0921-4488
Subject:
Merino; body weight; breeding programs; business enterprises; covariance; fleece rot; flocks; flystrike; genetic correlation; genetic improvement; genetic relationships; neck; phenotypic correlation; profitability; sheep; staple (fibers); wool; wool production
Abstract:
... Merino breeding programs seeking a genetic solution to reduce the incidence of flystrike require estimates of genetic correlations between both flystrike itself and its indicator traits with wool production and quality traits that affect the profitability of a Merino enterprise. This will enable Merino producers to predict the outcome of selection strategies and genetic improvement programs that i ...
DOI:
10.1016/j.smallrumres.2018.04.010

9. Modeling of the annual cycle of Melophagus ovinus (L.) in two sheep flocks of Patagonia, Argentina

Author:
Larroza, Marcela; Aparicio, Alejandro; Raffo, Fernando; Cabrera, Raúl; Olaechea, Fermín
Source:
Small ruminant research 2018 v.160 pp. 19-22
ISSN:
0921-4488
Subject:
Melophagus ovinus; Merino; adults; autumn; climate; economic impact; farms; flocks; lambs; livestock and meat industry; meta-analysis; models; monitoring; neonates; parasites; parasitism; plague; population dynamics; spring; Argentina
Abstract:
... The ked Melophagus ovinus (L.), one of the most common obligate external parasites in sheep, is a recurrent problem in temperate sheep production areas worldwide. Modeling of its annual dynamics, which is lacking, can contribute to delineate integrated management strategies. We sampled ked density along a one-year period in two sheep farms of Northwest Patagonia, Argentina. In one farm with semi-i ...
DOI:
10.1016/j.smallrumres.2018.01.002

10. The ovine variety “Merino de los Montes Universales” and its good adaptation to traditional transhumant breeding system

Author:
Ramo, María de los Ángeles; Monteagudo, Luis Vicente; Tejedor, María Teresa; Sierra, Isidro
Source:
Small ruminant research 2018 v.166 pp. 35-40
ISSN:
0921-4488
Subject:
Merino; breeding; claws; ewes; flocks; grazing; herds; lactation; lameness; rams; temperature; transhumance; walking; winter; withers; Iberian Peninsula; Spain
Abstract:
... The “Merino de los Montes Universales” (MMU) is a variety still involved in traditional long distance transhumance: these herds walk for 24 days to complete a 580 km journey, twice a year, between the summering province of Teruel (Aragón, Northern Spain) and Jaén (Andalucía, Southern Spain), where they spend the winter. MMU morphology is adapted to this breeding system: for instance, the mean weig ...
DOI:
10.1016/j.smallrumres.2018.07.011

11. Variation in the ovine trichohyalin gene and its association with wool curvature

Author:
Gong, Hua; Zhou, Huitong; Tao, Jinzhong; Li, Shaobin; Dyer, Jolon M.; Luo, Yuzhu; Hickford, Jon G.H.
Source:
Small ruminant research 2018 v.159 pp. 1-4
ISSN:
0921-4488
Subject:
Corriedale; Merino; Romney; amino acids; calcium; crossbreds; crosslinking; exons; hair follicles; heterozygosity; intermediate filament proteins; introns; keratin; polymerase chain reaction; progeny; sheep; single nucleotide polymorphism; single-stranded conformational polymorphism; sires; wool; New Zealand
Abstract:
... Trichohyalin (TCHH) is a protein found in ovine wool fibres. It is part of the interfilamentous matrix protein and cross-links both to itself and to the keratin intermediate filament proteins. TCHH is also believed to play a role in the regulation of calcium levels within the hair follicle. This study used PCR-single stranded conformational polymorphism (PCR-SSCP) analysis to investigate variation ...
DOI:
10.1016/j.smallrumres.2017.12.007