scholarly journals Association of IGF 1 gene polymorphisms with some morphometric traits of Nigerian indigenous sheep breeds

2018 ◽  
Vol 34 (1) ◽  
pp. 97 ◽  
Author(s):  
A. O. Raji ◽  
A. Mohammed ◽  
J. U. Igwebuike ◽  
C. Alphonsus
Keyword(s):  
Gene Polymorphisms ◽  
Morphometric Traits ◽  
Sheep Breeds ◽  
Indigenous Sheep

scholarly journals Association of gdf9 Gene Polymorphisms With Litter Size in Indigenous Sheep of Bangladesh

2020 ◽  
Vol 7 (2) ◽  
pp. 283-292
Author(s):  
Faruk Hossain ◽  
Sharmin Akter Suma ◽  
Mohammad Shamsul Alam Bhuiyan
Keyword(s):  
Gene Polymorphism ◽  
Litter Size ◽  
Gene Polymorphisms ◽  
Climatic Conditions ◽  
Animal Protein ◽  
Selection Program ◽  
Indigenous Sheep ◽  
Gdf9 Gene

Sheep in Bangladesh are well known as efficient users of low quality roughages, welladapted to hot and humid agro-climatic conditions, capable of bi-annual lambing withmultiple births and resistant to common prevalent diseases. They play an important role inthe supply of animal protein. Present study aimed to investigate possible association ofGDF9 gene polymorphisms with litter size. A total of 126 DNA samples extracted from theblood of indigenous sheep from 5 locations namely Tangail, Noakhali, Naogaon,Gaibandha and Satkhira with known litter size were used to study the association ofGDF9 polymorphism by PCR based RFLP method. Two polymorphic regions of GDF9(FecG1 and FecG8) were amplified by PCR, digested with respective restriction enzymesand 126 sheep were genotyped. Current study revealed that genotype and allelefrequency for FecG1 varied among the sheep from different locations. The genotype (GG,AG, AA) frequency were 51.59%, 45.24% and 3.17% and the allele (G and A) frequenciesin the overall population were 74.21% and 25.79%, respectively. There was a significantassociation of FecG1 of GDF9 gene polymorphism with litter size. The homozygous GGgenotype had the lowest litter size (1.59±0.09; n=65) and homozygous AA genotype hadthe highest litter size (2.00±0.41; n=4). No genotypic variations were found for FecG8.Findings of this study specially the polymorphism of FecG1 together with genotyping ofsome sheep could be utilized in the selection program to increase the lamb productionpotentiality of indigenous sheep of Bangladesh. Res. Agric., Livest. Fish.7(2): 283-292,  August 2020

The wool properties and body weights of the indigenous Red Karaman and Karyaka sheep breeds of Turkey

2009 ◽  
Vol 2009 ◽  
pp. 180-180
Author(s):  
E Pasa ◽  
H Esfandyari ◽  
M Farajiyan ◽  
G Mogghaddam ◽  
P Shahbazi ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Genetic Improvement ◽  
Mixed Type ◽  
Sheep Breeding ◽  
Wool Production ◽  
Sheep Breeds ◽  
Indigenous Sheep ◽  
Animal Genetic Resources ◽  
Body Weights ◽  
Production Characteristics

Sheep breeding has an important role in animal production in Turkey. The diversity of animal genetic resources of Turkey have not been fully appraised and some indigenous farm animal breeds are in danger of disappearing even before being scientifically defined. An equilibrium is needed between the genetic improvement studies and the conservation of the genetic resources Ozcan et al (1994). The greatest part of the wool produced by the indigenous sheep breeds in Turkey is of coarse and mixed type of wool and most of it is used in the hand woven authentic carpet production Kizilay (1986). This paper reports body weights and wool production characteristics of the indigenous Red Karaman and Karayaka sheep breeds.

scholarly journals Morphological diversity of northeastern fat-tailed and northwestern thin-tailed indigenous sheep breeds of Ethiopia

Heliyon ◽  
2021 ◽  
pp. e07472
Author(s):  
Belay Deribe ◽  
Dereje Beyene ◽  
Kifle Dagne ◽  
Tesfaye Getachew ◽  
Solomon Gizaw ◽  
...  
Keyword(s):  
Morphological Diversity ◽  
Sheep Breeds ◽  
Indigenous Sheep

scholarly journals Variation in body measurements and semen quality of Nigeria sheep breeds

2021 ◽  
Vol 48 (1) ◽  
pp. 55-61
Author(s):  
F. P. Agbaye ◽  
A. O. Sokunbi ◽  
M. A. Onigemo ◽  
O. Alaba ◽  
O. A. J. Anjola ◽  
...  
Keyword(s):  
Semen Quality ◽  
Sperm Concentration ◽  
Small Ruminants ◽  
Body Measurements ◽  
Morphometric Traits ◽  
Sheep Breeds ◽  
Scrotal Circumference ◽  
Body Weights ◽  
Qualité Du Sperme

small holder farmers enjoy in rearing small ruminants however, there are paucity of information on the morphometric traits and semen characteristics of Nigeria breeds of sheep in Ikorodu. Therefore, the effects of breeds on body measurements and semen quality of four sheep breeds in Nigeria were assessed. Twenty matured rams aged 2½ years and weighed 31.13±4.8 kg comprising five rams per breed namely: Balami (BAL), Ouda (UD), Yankasa (YAK) and West African Dwarf (WAD) were used for the study. Body measurements and semen quality of each ram was assessed for a period of six weeks after the four weeks of acclimatization. Live body weights (LBW), scrotal circumference (SC), height at wither (HtW), rump length (RpL) and rectal temperature (RT) were evaluated for body parameters. Semen samples were collected using electro-ejaculation method and evaluated for semen volume (SV), progressive sperm motility (PSM), sperm concentration (SC), normal sperm morphology (NSM), sperm livability (SL), and sperm acrosome integrity (SAI) using standard procedures. Results revealed that Yankasa had significantly (p<0.05) the higher live body weights (38.33kg) Live body weights while WAD recorded the least live body weights (28.50kg) live body weights which, was similar (p>0.05) with values recorded for Balami (28.67kg) and Ouda(29.0kg) breeds. Scrotal circumference was significantly (p<0.05) the lowest (24.50cm) in WAD but were similar (p>0.05) in Ouda (28.00cm), BAL (27.67cm) and YAK (26.33cm). The HtW showed similar trend with scrotal circumference. Meanwhile, there were no significant variation (p>0.05) in the value recorded for RpL (cm) and RT (0C). While, PSM, SAI and SV for all the breeds of sheep were statistically similar (p>0.05) in values and SC, SL and SNM were statistically different (p<0.05) between breeds.     La petite taille corporelle, la capacité de production élevée et les taux de croissance rapides des moutons sont des caractéristiques remarquables que les petits exploitants agricoles apprécient dans l'élevage de petits ruminants, cependant, il y a peu d'informations sur les traits morphométriques et les caractéristiques du sperme des races de moutons du Nigeria à Ikorodu. Par conséquent, les effets des races sur les mésures corporelles et la qualité du sperme de quatre races de moutons au Nigéria ont été évalués. Vingt béliers matures âgés de 2 ans et demi et pesant 31,13 ± 4,8 kg comprenant cinq béliers par race à savoir: Balami (BAL), Ouda (UD), Yankasa (YAK) et mouton nain de l'Afrique de l'Ouest (WAD) ont été utilisés pour l'étude. Les mesures corporelles et la qualité du sperme de chaque bélier ont été évaluées pendant une période de six semaines après les quatre semaines d'acclimatation. Les poids corporels vivants (LBW), la circonférence scrotale (SC), la hauteur au garrot (HtW), la longueur de la croupe (RpL) et la température rectale (RT) ont été évaluées pour les paramètres corporels. Des échantillons de sperme ont été collectés à l'aide de la méthode d'électro-éjaculation et évalués pour le volume de sperme (SV), la motilité progressive des spermatozoïdes (PSM), la concentration de spermatozoïdes (SC), la morphologie normale des spermatozoïdes (NSM), l'habitabilité des spermatozoïdes (SL) et l'intégrité des acrosomes du sperme (SAI) en utilisant des procédures standard. Les résultats ont révélé que Yankasa avait significativement (p <0,05) les poids corporels vivants les plus élevés (38,33 kg), tandis que WAD a enregistré les poids corporels vivants les moins élevés (28,50 kg) qui étaient similaires (p> 0,05) avec des valeurs enregistrées pour les races Balami (28,67 kg) et Ouda (29,0 kg). La circonférence scrotale était significativement (p <0,05) la plus basse (24,50 cm) dans le mouton nain de l'Afrique de l'Ouest mais était similaire (p> 0,05) chez Ouda (28,00 cm), BAL (27,67 cm) et YAK (26,33 cm). La hauteur au garrot (HtW) a montré une tendance similaire avec la circonférence scrotale. Pendant ce temps, il n'y avait pas de variation significative (p> 0,05) dans la valeur enregistrée pour la longueur de la croupe (RpL) (cm) et la température rectale (RT) (0C). Alors que PSM, SAI et SV pour toutes les races de moutons étaient statistiquement similaires (p> 0,05) en valeurs et SC, SL et SNM étaient statistiquement différents (p <0,05) entre les races.

scholarly journals Dorper sheep cross breeding with Indigenous sheep breed in Ethiopia

2019 ◽  
Vol 4 (1) ◽  
pp. 36
Author(s):  
Desalegn Ayichew Walle
Keyword(s):  
Research And Development ◽  
Research Output ◽  
Sheep Breed ◽  
Meat Production ◽  
Cross Breeding ◽  
Sheep Breeds ◽  
Indigenous Sheep ◽  
Dorper Sheep ◽  
On Farm ◽  
Better Than

The objective of this review paper was to review dorper sheep cross breeding with indigenous sheep breed in Ethiopia. The paper reviewed and discussed the history of dorper breed introduction, research and development efforts in crossbreeding and their performance under on-station and on-farm management. Formal survey on farmers perception on Dorper cross sheep indicated that the crossbred dorper sheep have non selective feed behavior and excellent in meat production under farmer`s management. On other study showed that dorper sheep was not meet farmer interest in breeding sheep aspect because of black coat color. The performance of indigenous sheep and their crosses with Dorper varied as per the location, management, farming conditions and percentage of exotic blood level inheritance. Different research output by team of researchers on farm and on station performance evaluation of dorper indicated that crossbreds often outperformed their local contemporaries. Under on farm condition, body weight at different ages was significantly higher in 50% Dorper crosses as compared to their 25% and75% counter parts.On station birth weight of Dorper (3.39 3.8 kg) better than crossbreed (3.0 3.24 ± 0.04 kg) and local sheep (2.36 2.77 kg), respectively.While the mean weaning weight (14 16 kg) and yearling weight (26.95 32.43 ± 0.46 kg) of 50% Dorper crossbreed was better than indigenous sheep breeds. However, crossbred ewes and local sheep breeds did not differ in litter size. Dorper crosses with Afar under on station is not economically important due to lower weight in all aspects. Crossbreeding programs of dorper with indigenous sheep require strong research and development support from public service and non-governmental institutions for sustainable design, optimization, and implementation in clearly defined production environments.

scholarly journals Genetic Polymorphisms of Cyp19 and Myostatin Genes in Turkish Indigenous Sheep Breeds

2018 ◽  
Vol 68 (3) ◽  
pp. 313
Author(s):  
I. AKIŞ ◽  
F. ESEN GÜRSEL ◽  
N. HACIHASANOĞLU ÇAKMAK ◽  
G. ATMACA ◽  
H. YARDIBI ◽  
...  
Keyword(s):  
Growth Traits ◽  
Muscle Growth ◽  
Reproductive Activity ◽  
Meat Production ◽  
Production Traits ◽  
Sheep Breeds ◽  
Indigenous Sheep ◽  
Estrogen Synthesis ◽  
Pcr Rflp ◽  
Cyp19 Gene

Growth and meat production traits are very important in sheep breeding. Cyp19 gene has a major role in reproductive activity and growth due to its function in estrogen synthesis. Another gene affecting growth traits is  Myostatin (MSTN) gene, which mainly regulates skeletal muscle growth. In this study allele frequencies of genetic polymorphism in Cyp19 and Myostatin genes were identified by PCR-RFLP method in five indigenous Turkish sheep breeds, Chiose, Imroz, Kivircik, Zom and Morkaraman. Digestion of Cyp19 gene with HaeIII only revealed uncut AA genotype and digestion of MSTN with DraI also revealed only uncut AA genotype. Both loci analyzed in this study were found to be monomorphic in five Turkish indigenous sheep breeds. These highly conserved parts of the two genes can be useful for molecular evolutionary studies in sheep. Further studies regarding association analysis of Cyp19 and MSTN in sheep should be conducted.

scholarly journals Meat production characteristics of Turkish native breeds: I. Fattening, slaughter and carcass traits of lambs

1970 ◽  
Vol 48 (4) ◽  
pp. 666-672
Author(s):  
Y. Aksoy ◽  
M. Uğurlu ◽  
A. Önenç ◽  
E. Şirin ◽  
U. Şen ◽  
...  
Keyword(s):  
Carcass Traits ◽  
Sheep Breed ◽  
The Other ◽  
Meat Production ◽  
Muscle Area ◽  
Sheep Breeds ◽  
Indigenous Sheep ◽  
Dressing Percentage ◽  
Production Characteristics ◽  
Carcass Cuts

The present study was conducted to determine the slaughter and carcass traits of male lambs of the Akkaraman (A), Morkaraman (M), Awassi (IW), Karayaka (KR), Kıvırcık (KV) and Middle Anatolian Merino (MAM) sheep breeds. Fattening of all lambs started when they were at 90 days at weaning and finished when they reached bodyweight of 40 kg. The cold dressing percentage of lambs of A, M, and IW breeds were significantly lower than those of KV, KR and MAM. Fat depth and muscle area were significantly greater in KV and MAM lambs than those of the other breeds. There were significant differences among breeds in shoulder, leg and lean weights. Weights of back loin in KV and MAM lambs were significantly greater than those of the other breeds. The highest values for carcass fleshiness were obtained in MAM and IW lambs, but they had a significantly lower carcass fatness score. There were significant differences among the breeds in carcass compactness and leg conformation. The results of the present study indicated that A and MAM breeds could be recommended for desirable carcass characteristics.Keywords: Carcass cuts, indigenous sheep breed, intensive lamb finishing, meat formation, SEUROP classification

scholarly journals Molecular genetic diversity and relationship of indigenous sheep breeds of Pakistan based on nuclear microsatellite loci

2019 ◽  
Vol 30 (1) ◽  
pp. 54
Author(s):  
T Hussain ◽  
M M. Musthafa ◽  
M E. Babar ◽  
M Shaheen ◽  
F M. Marikar
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Loci ◽  
Molecular Genetic ◽  
Sheep Breeds ◽  
Indigenous Sheep ◽  
Molecular Genetic Diversity ◽  
Nuclear Microsatellite ◽  
Relationship Of

<p>En Pakistán los recursos genéticos ovinos son abundantes, disponiéndose de varias diferentes castas extendidas en todo el país. No obstante, la diversidad molecular de las razas de ovejas es poco conocida en la región. Por ello, en el presente estudio se investigaron 16 marcadores microsatelitales de las razas indígenas Buchi y Hashtnagri, en las provincias de Pendjab y Balochistan respectivamente. Para indagar la diversidad genética se obtuvieron muestras de sangre de 25 animales de cada raza. El promedio del número de alelos en Buchi y Hashtnagri fue de 3,375±1,455 y 3,50±1,591 respectivamente. Los promedios de heterocigosis registradas fueron de 0,878±0,204 para la raza Buchi y 0,885±0,218 para Hashtnagri. Los índices de Shannon fueron 1,032±0,371 para Buchi y 1,070±0,412 para Hashtnagri, respectivamente. La estimación de los coeficientes de endogamia (FIS y FIT) mostró valores negativos, en tanto que el flujo genético (migración) fue de 10,09 y el promedio de la diferencia poblacional (FST) resultó de 2,4%. En ambas razas, el índice de información polimórfica fue 0,56, indicando el valor del marcador del tablero. Entre las ovejas Buchi y Hashtnagri, la distancia genética estándar de Nei (Ds) fue 0,0218. Según estos resultados, ambas razas mostraron considerable diversidad genética. Los datos obtenidos permiten vislumbrar una promisoria mejoría en el área de la conservación y en el diseño de las estrategias para la cría de ovejas en el futuro cercano.</p>

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