The Progeny test of Friesian sires for milk traits by using the contemporary comparison method

Mardenli, Omar

doi:10.24188/recia.v13.n1.2021.747

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…No doubt, the IVEP technology of farm animal embryos is characterized by high costs and sophisticated laboratory tools, as is the production of embryos in humans. However, the requirements of the breeding plans are mostly aimed at producing genetically superior individuals to accelerate genetic improvement and reach a high ceiling of production [9][10][11][12][13][14]. Perhaps this is closely related to animal breeds of high productivity and very desirable by breeders, but in the end, the factors that govern the success of IVEP efficiency are the transfer of these embryos, the rates of implantation and the conception rates.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the In Vitro Embryo Production of Farm Animals Under the Circumstances of Embryo Transfer Technology

Mardenli

Al-Tawash

Ibrahim

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“Embryo transfer” technology is one of the deterministic techniques related to the production of in vitro or in vivo produced embryos. This technique controls to a large extent the integrity of the developmental component of early embryos and their ability to develop later until birth. Pregnancy rates resulting from the transferred embryos were widely dispersed and associated with many variables and factors. The developmental stage of early embryos had a significant impact on pregnancy rates, as most studies agreed to transfer embryos in the blastocyst and morula stages due to the high rates of pregnancy (40%-100%) compared to the blastomeres. Embryo cryopreservation technology (rapid and slow) competed to a large extent with fresh embryos in pregnancy rates, even surpassing the latter in some cases, as the percentage approached 100%. The resulting pregnancy rates varied greatly (up to 95%) according to the method of transferring and hormonal induction. The results were mainly based on the size and type of the animal on the one hand and on the nature of the biological activity and the specific function of the hormones (progesterone, prostaglandin F2α, gonadotropin - releasing hormone and follicle - stimulating hormone, etc.) involved in regulating estrus in donors and recipients on the other hand. This review concluded that the embryo transfer technology has given many scenarios that cannot lead to an inevitable result in judging the efficacy of the technology of in vitro embryo production, but the results are encouraging and require further efforts.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the In Vitro Embryo Production of Farm Animals Under the Circumstances of Embryo Transfer Technology

Mardenli

Al-Tawash

Ibrahim

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…The development of poultry science is in fact linked to the interplay of many paths, the most important of which are genetics, animal husbandry, physiology and nutrition [1,2].…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Using Lactic Acid Bacillus on Productive Parameters of Babcock B300 Laying Hens Strain

salih¹,

Abed-Almajeed²,

Mardenli³

et al. 2021

QJAS

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This research was carried out in the Research Center of the Faculty of Agriculture in Al-Muslimiya, 240 hybrid Babcock B300 female laying hens were randomly distributed since the first day of the experiment into four independent groups. Each group included 60 birds according to three replicates (20 birds in each replicate). Lactic acid bacillus was added to the feed mixture according to three levels (50 mg/kg; B group, 100 mg /kg; C group and 150 mg/kg; D group), while the first group was considered as a control group (A group) and was without additions. During the production period, the results showed that the addition of lactic acid bacillus led to significant differences (p<0.03) in the egg production and shell thickness compared with the control group. The additions did not affect the egg weight and feed consumption rate as well as the feed conversion ratio. The birds of the third group (C group) showed clear superiority in various productive traits compared to others in the other groups throughout the productive period followed by the birds of group D and then group B. The current study concluded that adding 100 mg /kg lactic acid bacillus to the feed mixtures for laying hens will contribute to raising the productive efficiency of laying hens and improving egg specifications.

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The Progeny test of Friesian sires for milk traits by using the contemporary comparison method

Cited by 2 publications

References 19 publications

Evaluation of the In Vitro Embryo Production of Farm Animals Under the Circumstances of Embryo Transfer Technology

Evaluation of the In Vitro Embryo Production of Farm Animals Under the Circumstances of Embryo Transfer Technology

Efficacy of Using Lactic Acid Bacillus on Productive Parameters of Babcock B300 Laying Hens Strain

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