Sex-preselected buffalo (Bubalus bubalis) calves derived from artificial insemination with sexed sperm

Lu, Yangqing; Zhang, Ming; Lu, Sen; Xu, Dianxin; Huang, Weihong; Mao, Bing; Xu, Huiyan; Ke-huan, LU

doi:10.1016/j.anireprosci.2010.01.001

Cited by 28 publications

(25 citation statements)

References 18 publications

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“…Bovine sexed semen was introduced into commercial application for the first time in the United Kingdom in 2000. Now a days, large number of artificial insemination centres offered bovine sexed semen worldwide (Rath and Johnson, 2008).The application of sexed semen extended to different species (Rath and Johnson, 2008;Lu et al, 2010) and it began to be used with other advanced reproductive techniques such as IVF (Pontes et al, 2010) and super ovulation (Hayakawa et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

Fertility of Commercial Sexed Semen and the Economic Analyses of its Application in Holstein Heifers

Abdalla¹,

Ali²

2014

Adv. Anim. Vet. Sci.

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| The aim of the current study was to evaluate the fertility of commercially available sexed semen and to economically analyse three assumed strategies for its application in Holstein heifers. In the first part of the study, a total of 426 heifers were inseminated with sexed semen from 7 bulls and 325 heifers were inseminated with unsexed semen from 5 bulls. The pregnancy at 40 and 90 days post insemination, the embryonic loss, the calving, the abortion and the heifer calves rates were calculated. Heifers inseminated with sexed semen had significantly lower (P<0.001) pregnancy-40, pregnancy-90 and calving rates (34, 32.2 and 29.3%; respectively) than those inseminated with unsexed semen (62.5, 57.8 and 51.1%; respectively). The embryonic loss and abortion rates were similar in heifers inseminated with sexed and unsexed semen. There was a clear effect for bull on pregnancy, embryonic loss and abortion rates in sexed and unsexed semen. In the second part of the study, it was assumed that heifers will be inseminated with sexed semen once, twice or repeatedly till achieving 88% calving rate. The economic impact of the three sexed semen application strategies was compared to the unsexed strategy. The sexed once, the sexed twice and the sexed wide strategies achieved 8.7, 8.1 and 13.8% increase in the calf crop return; respectively. In conclusion, even with lower fertility, application of sexed semen could add numerous benefits to the dairy herds. Adv. Anim. Vet. Sci. 2 (9): 535-542.

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Section: Introductionmentioning

confidence: 99%

Fertility of Commercial Sexed Semen and the Economic Analyses of its Application in Holstein Heifers

Abdalla¹,

Ali²

2014

Adv. Anim. Vet. Sci.

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“…In another study, it was reported that the conception rate in heifers was 45% and in lactating cows was 28% (De Vries et al, 2008). In contrast, conception rate of 69.7% with sexed sperm & 66.5% with unsexed sperm following AI was reported in China (Lu et al, 2010). In general, conception rate in lactating animals is low due to low insemination dose, large postpartum uterus and weak heat symptoms (Yoshida and Nakao, 2005).…”

Section: Pregnancy Rate With Sexed Semenmentioning

confidence: 93%

Sexing of Spermatozoa in Farm Animals: a Mini Review

Prakash¹

2014

Adv. Anim. Vet. Sci.

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Livestock farmers always have a wish for producing young ones of desired sex. Among the several techniques available, use of sexed semen for artificial insemination is recognized as more pragmatic and easy way to pre -select the sex of the offspring. Selective use of sexed semen in breeding will not only increase the genetic progress from the daughter -dam path but would also help in producing good male germplasm from elite bulls for future breeding. Several attempts have been made, elsewhere in the globe, to develop methods that efficiently separate bovine semen into fractions containing higher concentrations of X -or Y -bearing sperm. These technologies include sex specific antibodies, centrifugation and flow cytometry. Of these attempts, the only method proven to be commercially viable is flow cytometry. However, sorting pressure, speed, electrical deviation, laser radiation all leads to membrane alteration and pre -capacitation like changes in the sorted sperm leading to reduced fertility. Despite these limitations, production of sexed semen usually followed by cryopreservation is being used commercially for cattle production. Development of the instrument for increasing the sorting rate and also purity of sorting without affecting the viability and fertility is still an active area of research. The aim of this review is to update the readers with the recent developments in sexing of spermatozoa with special reference to farm animals.All copyrights reserved to Nexus® academic publishers

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“…Lately, buffaloes have increasingly been the subject of interest on which to apply the latest available technologies like in vitro embryo production, with a variable degree of success, but definitely making the buffalo a species of interest for that particular type of genetic exploitation (Gasparrini, 2002). As previously anticipated, the use of sexed semen has been tested in buffaloes, its feasibility has been proved both via AI and in vivo embryo production, as well as via in vitro embryo production (Liang et al, 2008;Lu et al, 2010), and the trend is now to have buffalo sexed semen commercially available worldwide. In Asian countries, where the swamp subspecies is predominant, there is a tendency to use semen from river buffaloes to crossbreed with swamp females, in order to have F1, F2, and backcrossing.…”

Section: Improving the Buffalomentioning

confidence: 96%

Safe and Sustainable Traditional Production: The Water Buffalo in Asia

Deb

Nahar

Duran

et al. 2016

Front. Environ. Sci.

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The water buffalo (Bubalus bubalis) is considered an efficient converter of poor quality forages into high quality milk and meat. This species is ubiquitous, with prevalence though in Asian and Mediterranean countries. From a genetic standpoint, the species is characterized by two main subspecies: river and swamp type. The former to be found predominantly in Mediterranean countries, whereas the latter is found only in the Asia continent. At present, the majority of the total world buffalo population is distributed in Asia, holding around 97% of the available stock. There, animals are mostly fed on low quality roughages and crop residues with poor nutritive value, resulting inevitably in reduced productive and reproductive performances. A distinctive differential production system is in effect between river and swamp type buffaloes, due to a significant production capacity of the two sub-species. An overview of production systems and their sustainability in the two sub-species with an emphasis on country of origin and feed availability is presented.

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Sex-preselected buffalo (Bubalus bubalis) calves derived from artificial insemination with sexed sperm

Cited by 28 publications

References 18 publications

Fertility of Commercial Sexed Semen and the Economic Analyses of its Application in Holstein Heifers

Fertility of Commercial Sexed Semen and the Economic Analyses of its Application in Holstein Heifers

Sexing of Spermatozoa in Farm Animals: a Mini Review

Safe and Sustainable Traditional Production: The Water Buffalo in Asia

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