Academic literature on the topic 'Dairy cattle – Artificial insemination'

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Journal articles on the topic "Dairy cattle – Artificial insemination"

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Harder, B., W. Junge, J. Bennewitz, and E. Kalm. "Investigations on breeding plans for organic dairy cattle." Archives Animal Breeding 47, no. 2 (2004): 129–39. http://dx.doi.org/10.5194/aab-47-129-2004.

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Abstract. facilities in Germany, different alternative breeding plans for organic cattle breeding were developed using the computer program ZPLAN. First the impact of the population size on the parameters of success was analysed. A conventional cattle breeding program was compared with an organic breeding program. The results indicate that the selection response increased with increasing population size due to improved selection of bull sires. The EU Regulations on organic farming say that the proportion of artificial insemination has to be reduced as much as possible. According to this, the i
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Thangavelu, G., M. Gobikrushanth, M. G. Colazo, and D. J. Ambrose. "Pregnancy per artificial insemination and pregnancy loss in lactating dairy cows of a single herd following timed artificial insemination or insemination at detected estrus." Canadian Journal of Animal Science 95, no. 3 (2015): 383–88. http://dx.doi.org/10.4141/cjas-2014-122.

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Thangavelu, G., Gobikrushanth, M., Colazo, M. G. and Ambrose, D. J. 2015. Pregnancy per artificial insemination and pregnancy loss in lactating dairy cows of a single herd following timed artificial insemination or insemination at detected estrus. Can. J. Anim. Sci. 95: 383–388. The objective of this retrospective study was to determine the factors affecting pregnancy per artificial insemination (P/AI) and pregnancy loss in lactating dairy cattle. Breeding records (n=1466) for 5 consecutive years were evaluated from one dairy herd. The effects of type of breeding [timed artificial insemination
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Rizki, Andaru, Pudji Srianto, Endang Suprihati, Trilas Sardjito, Ismudiono Ismudiono, and Mohammad Anam Al Arif. "PENGARUH pH LENDIR MUKOSA VAGINA SAAT BIRAHI TERHADAP PERSENTASE KEBUNTINGAN (Conception Rate) PADA SAPI PERAH DI KUD TANI WILIS KABUPATEN TULUNGAGUNG DAN KSU TUNAS SETIA BARU KABUPATEN PASURUAN." Ovozoa : Journal of Animal Reproduction 8, no. 2 (2020): 154. http://dx.doi.org/10.20473/ovz.v8i2.2019.154-158.

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The purpose of this research is to determine the effect of mucos acidity of vaginal mucous when estrus towards conception rate at KUD Tani Wilis Tulungagung District and KSU Tunas Setia Baru Pasuruan District. Measured samples were taken from 30 dairy cattles in each KUD. Mucos acidity of vaginal mucous were obtained by using a digital acidity meter before insemination was done on dairy cattle. After measuring the acidity from mucosal vagina mucous, artificial insemination has done on estrus dairy cattle. On the 60th day after insemination, rectal palpation was done to check the conception rat
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Leigh, Olufisayo Oluwadamilare, Lukman Mustapha, Agbugba Chinyere Linda, and Adaeze Ezenwanyi Ibiam. "Timed Artificial Insemination: Pregnancy Rates in Sokoto Gudali Cattle Treated with Prostaglandin F2 Alpha at a Private Dairy Farm in Nigeria." ANIMAL PRODUCTION 20, no. 1 (2019): 1. http://dx.doi.org/10.20884/1.jap.2018.20.1.636.

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Pregnancy rates (PR) resulting from timed artificial insemination (TAI) with frozen semen were investigated in 192 Sokoto Gudali (SG) cattle following estrus synchronization under 11- and 12- day treatment intervals with prostaglandin F2 alpha (Estrumate®). Two-point inseminations at 60 h and 72 h post Estrumate® treatments were used. All cattle were randomly allocated to 2 groups i.e. A and B, such that each sub-group of A1, A2, B1 and B2 had sixteen (16) cows and thirty two (32) heifers. Furthermore, cattle in Groups A and B were administered double Estrumate® injections at 11- and 12-day in
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Hamid, Muhammed, Sadam Abduraman, and Belege Tadesse. "Risk Factors for the Efficiency of Artificial Insemination in Dairy Cows and Economic Impact of Failure of First Service Insemination in and around Haramaya Town, Oromia Region, Eastern Ethiopia." Veterinary Medicine International 2021 (May 21, 2021): 1–6. http://dx.doi.org/10.1155/2021/6622487.

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A cross-sectional study was conducted from November 2019 to May 2020 in and around Haramaya Town to study the risk factors of artificial insemination (AI) in dairy cattle and evaluate the economic impact of failure of first service AI. A questionnaire survey and field follow-up were employed for collecting data from cattle owners and artificial insemination technicians (AITs) who were selected purposively. Out of the 221 inseminated cows and heifers, the overall conception rate was 60.2% (n = 133). The conception rate was statistically different between breed ( P = 0.019 ) and insemination tim
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Van Doormaal, B. J., and G. J. Kistemaker. "Dairy genetic improvement through artificial insemination, performance recording and genetic evaluation." Canadian Journal of Animal Science 83, no. 3 (2003): 385–92. http://dx.doi.org/10.4141/a03-023.

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Artificial insemination (AI) of dairy cattle in Canada was started more than half a century ago and today it is estimated that at least 75% of all dairy cattle nationally are bred using this common reproductive technology. A Best Linear Unbiased Prediction sire model for estimating genetic evaluations for production traits was introduced in 1975. The combination of extensive use of AI with genetic evaluations for bulls and cows has resulted in significant phenotypic and genetic gains over the past 20 yr. In the Holstein breed, mature equivalent yields have increased by an average of 200 kg mil
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Abebe, Belete, and Mulugeta Alemayehu. "Challenges and Opportunities on Estrus Synchronization and Mass Artificial Insemination in Dairy Cows for Smallholders in Ethiopia." International Journal of Zoology 2021 (May 28, 2021): 1–6. http://dx.doi.org/10.1155/2021/9914095.

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In this paper, the potentials and constraints on estrus synchronization (ES) and artificial insemination (AI) practice for dairy cattle producers were overviewed. Compared to other African countries, Ethiopia has large numbers of dairy cattle population. However, the self-sufficiency in milk production is not yet attained due to the presence of a lot of limitations that hamper the success of ES and mass AI practice in many parts of the country such as improper selection of cows/heifers, inseminating a large number of cows/heifers in one day at a specific place (which creates stress for both AI
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Cabrera, Victor E., and Paul M. Fricke. "Economics of Twin Pregnancies in Dairy Cattle." Animals 11, no. 2 (2021): 552. http://dx.doi.org/10.3390/ani11020552.

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Twinning in Holstein dairy cows has increased over time concurrent with increased milk production. Twinning in dairy cattle is not desirable due to the negative effects on both cows that calve twins and calves born as twins that result in economic losses to dairy farms. Although a twin pregnancy could bring additional income from extra calves and shorten gestation length, twinning compromises milk production, increases the incidence of dystocia and perinatal mortality, decreases calf birth weight, increases the incidence of metabolic diseases, decreases fertility, increases the incidence of fr
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Olynk, N. J., and C. A. Wolf. "Stochastic economic analysis of dairy cattle artificial insemination reproductive management programs." Journal of Dairy Science 92, no. 3 (2009): 1290–99. http://dx.doi.org/10.3168/jds.2008-1418.

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Zubor, Tibor, Gabriella Hollo, Roland Pósa, Henrietta Nagy-Kiszlinger, Zsófia Vigh, and Balázs Húth. "Effect of rectal temperature on efficiency of artificial insemination and embryo transfer technique in dairy cattle during hot season." Czech Journal of Animal Science 65, No. 8 (2020): 295–302. http://dx.doi.org/10.17221/14/2020-cjas.

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This study aimed to evaluate the effects of rectal temperature (RT) as well as artificial insemination (AI) technique on pregnancy rates in Holstein cows and artificial insemination or embryo transfer (ET) techniques in Holstein heifers during summer. The experiments were conducted on five dairy farms in Hungary, where 1 631 data were examined. The RT was measured immediately before reproductive techniques using a digital thermometer. The effects of animal group and month on RT were analysed. The enhancement of RT until September can be seen in heifers, but the highest RT of cows occurred duri
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Dissertations / Theses on the topic "Dairy cattle – Artificial insemination"

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Grove, Mary Beth. "Optimal time of insemination in dairy cattle identified in estrus by HeatWatch." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-08292008-063759/.

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Peeler, Iris Dawn. "Synchronization and Resynchronization of Ovulation and Timed Insemination in Lactating Dairy Cows and Heifers." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9880.

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This study was conducted to evaluate the efficacy of intravaginal progesterone (P4) inserts (CIDR) in synchronization protocols combined with timed artificial insemination (TAI) as related reproductive performance. In the first study, heifers were synchronized with CIDR inserts followed by TAI. Heifers in the estradiol cypionate (ECP) group were synchronized with a combination of ECP, CIDR, prostaglandin (PGF2α), and ECP (CIDR-ECP), while the gonadotropin-releasing hormone (GnRH) group was synchronized using a combination of ECP, CIDR, PGF2α, and GnRH (CIDR-GnRH). All heifers were bred at eith
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Gordon, Miriam Bronwen. "Strategies to improve ovulation synchronization/timed artificial insemination protocol to increase pregnancy rate in dairy cattle." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/37788.

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Physiological stressors of high milk production and intensive management systems affect fertility and pregnancy rates (PR) in lactating dairy cows. A field study was conducted on dairy farms in the Fraser Valley of British Columbia to benchmark current reproductive performance and issues that impact local dairy farms. The results indicated a substantial reduction in reproductive performance due to inaccurate estrus detection, fertilization/ovulation failure, and embryonic mortality. Ovsynch timed artificial insemination (TAI) protocol is used for the induction and synchronization of ovulation
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Ojomo, Christian Olafimihan. "The Feasibility of Artificial Insemination of Dairy Cattle Managed by Fulani Tribesmen in Kaduna State, Nigeria." DigitalCommons@USU, 1987. https://digitalcommons.usu.edu/etd/153.

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This study sought to determine: (a) the essential elements of a viable artificial insemination program for the Fulani Tribesmen in Kaduna State, Nigeria, and (b) to determine if the essential elements of a viable artificial insemination program exist in Kaduna State, Nigeria. This study was conducted from April 15 to May 15, 1985, in the Artificial Insemination (AI) Subcenters of Zaria, Katsina, Kabomo, Kaduna, Ikara, Zonkwa, Kurmin-Biri, and Kauranjuli. The data presented in this study were collected by personal interviews with Fulani Tribesmen. The population of this study was from a partial
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Chung, Jin-Tae 1961. "Activation of bovine oocytes following intracytoplasmic sperm injection (ICSI)." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21528.

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The objective of this study was to develop a reliable method for intracytoplasmic sperm injection (ICSI) in bovine oocytes. Oocytes recovered from abattoir-derived ovaries were centrifuged for 5 min at 6000xg to facilitate sperm injection. Sperm were pre-treated in vitro with 5mM dithiothreitol (DTT), and diluted (approximately 1:5) with 5% polyvinylpyrrolidone (PVP) in 0.9% saline. After sperm injection, various activation procedures were compared. Initially, 3 h after activation with 5muM Ionomycin (A23187), oocytes with second polar bodies were selected and treated with 1.9mM 6-dimethylamin
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Båge, Renée. "On repeat breeding in dairy heifers : with special focus on follicular dynamics, ovulation, and oocyte quality /." Uppsala : Dept. of Obstetrics and Gynaecology, Swedish Univ. of Agricultural Sciences, 2002. http://epsilon.slu.se/v139.pdf.

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Ivanou, Aleh Vitorovich. "Clínica e reprodução de bovinos leiteiros." Master's thesis, Universidade de Évora, 2015. http://hdl.handle.net/10174/17493.

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O presente relatório resulta do estágio curricular realizado na área de Clínica de Espécies Pecuárias, no âmbito do Mestrado Integrado em Medicina Veterinária. Na primeira parte, são descritas as explorações onde o estágio se realizou e as atividades desenvolvidas nas mesmas. Numa segunda parte, efetuou-se uma revisão bibliográfica sobre os fatores reprodutivos que afetam explorações leiteiras e, numa terceira parte, desenvolve-se análise dos índices reprodutivos nas explorações onde decorreu o estágio. No presente trabalho pretendeu-se descrever os principais fatores que influenciam os parâme
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Meyer, Joseph Patrick. "Evaluation of estrus synchronization protocols for first and second insemination in dairy cows and heifers /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1426088.

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Melo, Leonardo de França e. "Progesterone-based fixed-time artificial insemination protocols for dairy cows." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-30092016-150847/.

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In the last 50 years, milk production increased in lactating dairy cows. In contrast, reproductive efficiency has dramatically decreased. Several causes may be involved, such as management and environmental factors, physiological and nutritional factors, disease challenges and others. Steroid hormone concentrations in high-producing lactating dairy cows are often at lower levels, due to high dry matter intake and increased liver blood flow and steroid hormones metabolism, which is associated with the compromised estrus expression and reduced oocyte quality, thus decreasing fertility. However,
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Januskauskas, Aloyzas. "Assessment of viability and function of post-thaw spermatozoa from Swedish dairy AI bulls /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5435-2.pdf.

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Books on the topic "Dairy cattle – Artificial insemination"

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Underwood, John. Sires of distinction: The M.F.A. Artificial Breeding Association and its impact on Missouri's dairy industry. Donning Co., 2012.

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Soderquist, Lennart. Sperm characteristics and fertility in dairy A.I. bulls: With special reference to sperm motility, ATP content, sperm morphology, and spermatogenesis. Sveriges Lantbruksuniversitet, 1991.

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Herman, Harry August. The artificial insemination and embryo transfer of dairy and beef cattle (including techniques for goats, sheep, horses, and swine): A handbook and laboratory manual for students, herd operators, and workers in the AI field. 7th ed. Interstate Printers & Publishers, 1987.

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Herman, Harry August. The artificial insemination and embryo transfer of dairy and beef cattle (including information pertaining to goats, sheep, horses, swine, and other animals): A handbook and laboratory manual for students, herd operators, and persons involved in genetic improvement. 8th ed. Interstate Printers & Publishers, 1994.

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Ontario. Ministry of Agriculture and Food. Artificial insemination (A1) in beef cattle. Ministry of Agriculture and Food, 1993.

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Hogeland, Julie A. Cooperatives' role in the artificial insemination industry. U.S. Dept. of Agriculture, Agricultural Cooperative Service, 1990.

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Lantbruksuniversitet, Sveriges, ed. Distribution of spermatozoa in the bovine genital tract after artificial insemination: With special referenceto the time and site of semen deposition and the morphology of inseminated spermatozoa. Sveriges Lantbruksuniversitet, 1988.

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Roman L. Hruska U.S. Meat Animal Research Center. Germ plasm evaluation program: Progress report, no. 12. U.S. Dept. of Agriculture, 1990.

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Conference on Artificial Insemination and Embryo Transfer in Beef Cattle (1986 Denver, Colo.). Proceedings of the Annual Conference on Artificial Insemination and Embryo Transfer in Beef Cattle, January 11, 1986, Denver, Colorado. The Association, 1986.

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Małecki, Jan. Wpływ środowiskowych czynników termiczno-wilgotnościowych na skuteczność unasiennienia krów w okresie pastwiskowym w hodowli wielkostadnej. Wydawn. Akademii Rolniczej w Szczecinie, 1991.

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Book chapters on the topic "Dairy cattle – Artificial insemination"

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Van Eetvelde, Mieke, Sonia Heras, J. L. M. R. Leroy, Ann Van Soom, and Geert Opsomer. "The Importance of the Periconception Period: Immediate Effects in Cattle Breeding and in Assisted Reproduction Such as Artificial Insemination and Embryo Transfer." In Periconception in Physiology and Medicine. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62414-3_3.

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"ARTIFICIAL INSEMINATION OF DAIRY CATTLE." In Problem of Fertility. Princeton University Press, 2017. http://dx.doi.org/10.1515/9781400886876-014.

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"Zebu Cattle: Timed Artificial Insemination." In Encyclopedia of Biotechnology in Agriculture and Food. CRC Press, 2010. http://dx.doi.org/10.1081/e-ebaf-120043044.

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Monke, D. R. "BULL MANAGEMENT | Artificial Insemination Centers." In Encyclopedia of Dairy Sciences. Elsevier, 2002. http://dx.doi.org/10.1016/b978-0-12-374407-4.00057-1.

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Foote, R. H. "MATING MANGEMENT | Artificial Insemination, Utilization." In Encyclopedia of Dairy Sciences. Elsevier, 2002. http://dx.doi.org/10.1016/b0-12-227235-8/00436-3.

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Monke, D. R. "BULL MANAGEMENT | Artificial Insemination Centres." In Encyclopedia of Dairy Sciences. Elsevier, 2002. http://dx.doi.org/10.1016/b0-12-227235-8/00052-3.

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Foote, R. H., and J. E. Parks. "GAMETE AND EMBRYO TECHNOLOGY | Artificial Insemination." In Encyclopedia of Dairy Sciences. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-12-374407-4.00198-9.

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Foote, R. H. "GAMETE AND EMBRYO TECHNOLOGY | Artificial Insemination." In Encyclopedia of Dairy Sciences. Elsevier, 2002. http://dx.doi.org/10.1016/b0-12-227235-8/00429-6.

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Chacko, C. T., and F. Schneider. "Management of artificial insemination service." In Breeding Services for Small Dairy Farmers. CRC Press, 2019. http://dx.doi.org/10.1201/9780429187896-5.

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Callis, Jerry J. "Artificial Insemination, Fertilized Ova, and Disease Transmission." In Beef Cattle Science Handbook. CRC Press, 2019. http://dx.doi.org/10.1201/9780429045189-63.

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Conference papers on the topic "Dairy cattle – Artificial insemination"

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Matsumoto, Atsushi, Chikara Kubota, and Hayato Ohwada. "Extracting Rules for Successful Conditions for Artificial Insemination in Dairy Cattle Using Inductive Logic Programming." In ICMLC 2017: 2017 the 9th International Conference on Machine Learning and Computing. ACM, 2017. http://dx.doi.org/10.1145/3055635.3056607.

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"Analysis of Knowledge and Attitude of Cattle Ranchers Towards Artificial Insemination in Dairy Cattle (Case Study: West Azerbaijan Province, Iran)." In International Conference on Earth, Environment and Life sciences. International Institute of Chemical, Biological & Environmental Engineering, 2014. http://dx.doi.org/10.15242/iicbe.c1214013.

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Romadhonny, Randy Anwar, Agustinus Bimo Gumelar, Tresna Maulana Fahrudin, et al. "Estrous Cycle Prediction of Dairy Cows for Planned Artificial Insemination (AI) Using Multiple Logistic Regression." In 2019 International Seminar on Application for Technology of Information and Communication (iSemantic). IEEE, 2019. http://dx.doi.org/10.1109/isemantic.2019.8884272.

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Suteky, Tatik, and Dwatmadji. "Factors Affecting Adoption of Beef Cattle Artificial Insemination (AI) in Smallholder Farmer in Bengkulu Province, Indonesia." In International Seminar on Promoting Local Resources for Sustainable Agriculture and Development (ISPLRSAD 2020). Atlantis Press, 2021. http://dx.doi.org/10.2991/absr.k.210609.032.

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C Y Wang, B M Li, Z X Shi, G Q Zhang, and H B Rom. "Comparison between the Statistical Method and Artificial Neural Networks in Estimating Ammonia Emissions from Naturally Ventilated Dairy Cattle Buildings." In Livestock Environment VIII, 31 August - 4 September 2008, Iguassu Falls, Brazil. American Society of Agricultural and Biological Engineers, 2008. http://dx.doi.org/10.13031/2013.25478.

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Reports on the topic "Dairy cattle – Artificial insemination"

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Sommer, Morgan M., and Curtis R. Youngs. Impact of Embryo Transfer Technology on the Production of Artificial Insemination Sires for the U.S. Dairy Cattle Industry. Iowa State University, 2016. http://dx.doi.org/10.31274/ans_air-180814-202.

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