Comparison of Sumatra sheep and hair sheep crossbreds. III. Reproductive performance of F2 ewes and weights of lambs

Doloksaribu, M.; Gatenby, R. M.; Subandriyo,; Bradford, G. E.

doi:10.1016/s0921-4488(00)00150-4

Cited by 15 publications

(7 citation statements)

References 3 publications

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“…These results indicated that polymorphism within genomic of hybrids is higher than polymorphism within genomic of races as indicated by the results of similarity (GS), where similarity between races was 89.1 % and between crosses was 75 %. These results are in agreement with those found by Doloksaribu et al, (2000), Boujenane and Kansari (2002), Hassen et al, (2004) and Abd Allah (2009). Also, fragments generated by primers show a polymorphism ratio of 10.8 % for varieties and 25 % for crosses.…”

Section: Discussionsupporting

confidence: 93%

Finger Printing of Rahmani, Chios Sheep Breeds and Their Crosses Using Random Amplified Polymorphic Dna (Rapd)

Mohamed

El-Din

Fahmy

et al. 2016

Journal of Agricultural Chemistry and Biotechnology

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RAPD-PCR was performed using ten random primers to identify the genetic diversity among Rahmani, Chios and their crosses. The appearance of bands on gels would reflect the differences between genotypes of the examined animals. The differences would be detected by number and size of present or absent bands with each primer which could be used as positive or negative genetic markers to distinguish between breeds and their crosses. Primers A7, C7 and C1 were used for fingerprinting to identify the Rahmani breed, where they produced bands of 454 and 724 bp, respectively only with Rahmani breed. Presence of band at 410 bp with primer A9 would be used as a genetic marker for Chios breed. The presence of bands 1634, 1105, 223 and 187 bp with primer B17 and also bands 735, 683, 425 and 395 bp with primer A9 could be used as a fingerprinting for cross (½ C ½ R). Presence of bands 173, 132 and 122 bp with primer A5 would be used as a genetic marker for the reciprocal cross (½ R ½ C). The results of molecular DNA of the experimental sheep breeds and their crosses, showed that polymorphism within crosses is higher than polymorphism within the pure breeds of Rahmani and Chios. Fragments generated by primers showed a polymorphism ratio of 10.8 % between Rahmani and Chios and 25 % between crosses (½ C ½ R and ½ R ½ C). Also, the similarity between Rahmani and Chios breeds was 89.1 %, while it was 75 % between crosses. The results asserted that fingerprinting (RAPD-PCR genetic marker) technique would be a useful tool to differentiate sheep breeds and their crosses.

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Section: Discussionsupporting

confidence: 93%

Finger Printing of Rahmani, Chios Sheep Breeds and Their Crosses Using Random Amplified Polymorphic Dna (Rapd)

Mohamed

El-Din

Fahmy

et al. 2016

Journal of Agricultural Chemistry and Biotechnology

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“…Many strategies for the improvement of lamb production and the growth performance of lambs have been practiced. One such strategy is the production of commercial crossbred slaughter lambs (Doloksaribu et al, 2000;Fogarty et al, 2000;Freking et al, 2000). In general, breeds evaluation as the first step provides necessary information on the use of breeds in crossbreeding systems that exploit effects of heterosis and complementarily to meet specific production and marketing objectives.…”

Section: Introductionmentioning

confidence: 99%

Evaluate pure Breeding and Crossbreeding Strategy for Better Carcass and non-carcass Traits of Awassi, Chios, and their Reciprocal Crossbred Lambs

Tabbaa

Al-Atiyat

Abdullah

2019

JJAS

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In Jordan, crossing local sheep with the exotic breed has an acceptable sound by farmers but needs scientific proof for planned-ahead crossing and introgression. This work aimed to find the best mating strategy on economic carcass and non-carcass traits of produced lambs under an intensive production system in Jordan. The mating strategy among Awassi and Chios for two years was designed to obtain different pure- and cross-bred lambs. They were pure Awassi, pure Chios, and reciprocal crosses of Awassi-Chios and Chios-Awassi lambs for two years. The studied factors included sex of lamb, breed, lamb birth type, age at slaughtering, and their two-way interactions. The lamb sex significantly affected (P < 0.001) most carcass and non-carcass traits of economic importance. Similarly, the effect of age was notable (P < 0.05) on all carcass and non-carcass traits. The breeds were significantly different (P < 0.05) for the hot carcass, tail, and internal organs weights. Therefore, the use of Awassi sire as a paternal contributor for producing meat over one year in crossbreeding can be implemented for increasing carcass weights. The heterosis effect had only significant for tail weight. Significant differences for the liver with and without a trachea, kidney with and without fat, heart with and without fat, and lung between reciprocal crosses for heterosis percentages always favored the reciprocal cross of Awassi female parent. Interaction effects of age with sex were detected on body weight, carcass length, and kidney, while interaction effect of birth type with sex was significant for body weight and some internal organs. finally, significant interaction effects of the breed with both sex and birth type were significant for the cold carcass, tail, and some organs weights. In the present study, sheep producers might be benefited better if Awassi sire is used as a paternal contributor for producing meat over one year in crossbreeding strategy with Chios for increasing carcass weights.

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“…However, it is higher than the 523 days reported for the breed from experimental station in the highlands of Ethiopia (Mukasa-Mugerwa and Lahlou-Kassi, 1995), and the 465 days (Doloksaribu et al, 2000) and 516 days (Gatenby et al, 1997a) reported from a hot humid tropical environment in Indonesia.…”

Section: Age and Weight At First Lambingmentioning

confidence: 56%

Effects of strategic helminthosis control on age at first lambing and lambing interval of communally grazed Menz ewes in Ethiopia

Aragaw

Teferi

Haile³

et al. 2011

Livestock Science

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Comparison of Sumatra sheep and hair sheep crossbreds. III. Reproductive performance of F2 ewes and weights of lambs

Cited by 15 publications

References 3 publications

Finger Printing of Rahmani, Chios Sheep Breeds and Their Crosses Using Random Amplified Polymorphic Dna (Rapd)

Finger Printing of Rahmani, Chios Sheep Breeds and Their Crosses Using Random Amplified Polymorphic Dna (Rapd)

Evaluate pure Breeding and Crossbreeding Strategy for Better Carcass and non-carcass Traits of Awassi, Chios, and their Reciprocal Crossbred Lambs

Effects of strategic helminthosis control on age at first lambing and lambing interval of communally grazed Menz ewes in Ethiopia

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