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Academic literature on the topic 'Holstein-Friesian cattle. Cattle Artificial insemination'
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Journal articles on the topic "Holstein-Friesian cattle. Cattle Artificial insemination"
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Yohana, Nadia, Abdul Samik, Bimo Aksono, Trilas Sardjito, Herry Agoes Hermadi, and Tjuk Imam Restiadi. "CONCEPTION RATE DAN SERVICE PER CONCEPTION PADA SAPI PERAH AKSEPTOR INSEMINASI BUATAN DI KUD ARGOPURO KECAMATAN KRUCIL KABUPATEN PROBOLINGGO." Ovozoa : Journal of Animal Reproduction 7, no. 2 (2020): 143. http://dx.doi.org/10.20473/ovz.v7i2.2018.143-147.
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Reproduction is one of essential factor directly affecting profitability in a dairy production system. Some of the reproductive factors that influenced to the developing of dairy cattle of small holder’s farmer are Conception Rate (CR) Service per Conception (S/C). The study was conducted to know the CR and S/C of Friesian Holstein in KUD Argopuro, Probolinggo. The data is taken primary and secondary data. Primary data retrieval is done by direct observation, which includes several variables, where the variables include : the identity of the breeder, cages, and feeding and drinking. As for the secondary data obtained by recording the card Artificial Insemination (AI) owned by Inseminator in KUD Argopuro. The data which by collected from this sample are CR and S/C. This research was a case study. The materials used cattle as the acceptors were 10% from 728 lactation cattle. Data from the results of this research on CR (30%) and S/C (2,49). The conclusion of this research for CR the result were lower than normal and S/C the result were higher than normal.
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BREDBACKA, P., and M. T. KOSKINEN. "Microsatellite panels suggested for parentage testing in cattle: informativeness revealed in Finnish Ayrshire and Holstein-Friesian populations (Research Note)." Agricultural and Food Science 8, no. 3 (1999): 233–37. http://dx.doi.org/10.23986/afsci.5625.
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Informativeness of eleven microsatellite markers suggested for parentage control in cattle by the International Society for Animal Genetics (ISAG) was studied in Finnish Ayrshire and Holstein-Friesian populations. Calculations were based on a sample of 100 non-sib artificial insemination bulls. Assuming one known parent the nine loci suggested for routine testing exhibited exclusion probabilities of 99.84% in the Ayrshires and 99.91% in the Holstein-Friesians. The addition of markers INRA23 and TGLA53, recommended for further investigations, increased the attained values to 99.94% in Ayrshires and to 99.98% in Holstein-Friesians. The recommended core set of six microsatellites provided a combined exclusion probability of 98.25% in Ayrshires and 99.32% in Holstein-Friesians. Although the combined values were high in general, a relatively low level of polymorphism was detected in some instances.;
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Garcia, M., W. Huanca, and L. Echevarria. "Reproductive performance of purebred and crossbred Zebu cattle under artificial insemination in the Amazon tropics." Animal Science 50, no. 1 (1990): 41–49. http://dx.doi.org/10.1017/s0003356100004451.
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ABSTRACTBreeding data from 1543 artificial inseminations, performed on 763 purebred and crossbred zebu cattle reared on 73 small farms, in the Amazon basin of Peru from 1980 to 1986, were evaluated. Inseminations were performed during morning hours using Holstein or Brown Swiss frozen semen. The calving to first oestrus and calving to conception intervals, number of services per conception, intervals between services and conception rate were evaluated. A total of 64-4% of first services and 61-4% of conceptions occurred between the middle of the dry season and the middle of the rainy season. Farm effect proved to be the most important source of variation for all reproductive traits. Other important factors influencing the interval from parturition to first service were breed of cow, parity and season of service. Parity influenced the interval from parturition to conception while parity, time of oestrous detection and inseminator influenced conception rate. The long post-partum anoestrous interval was found to be the most important factor limiting reproductive efficiency on small farms involved in the artificial insemination programme. The reproductive performance of the crossbred cattle tended to be better than that of the purebred zebu cattle.
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Siddiquee, NU, SMA Rahman, MSA Bhuiyan, AKMA Rahman, MR Amin, and AKFH Bhuiyan. "Practice, preference and performance of cattle under peri-urban dairy management system in Mymensingh." Bangladesh Journal of Animal Science 42, no. 2 (2013): 89–95. http://dx.doi.org/10.3329/bjas.v42i2.18485.
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The objective of this research was to assess the status of cattle in respect of breeding system, quality of breeding services, their production, reproduction, health status, management system and marketing system using an in-depth baseline survey. The mean of homestead land owned by the farmers was 36.17± 32.94 decimal and most of them (48.3%) own very low homestead land (11-50 decimal). Average cultivable land owned was found as 101.52±61.044 decimal and a considerable number of farmers have medium (51-150 decimal) to high (151 onward decimal) land area. From the collected data, it is clear that most of the households have cattle and chicken. But among cattle owners, about 77.62% have lower number (1-3). Most of the farmers 69.8% use locally available grass and only 3.2 % fed exotic grass to their cows. Milk sale and consumption (52.13%) was found as main objective behind cattle rearing. Semi-intensive method of rearing was found most acceptable (77.62%) among the peri-urban farmers. Disease problem was quite high because of lack of routine vaccination where vaccination was found to be practiced by only 38.46% farmers. Indigenous cattle are of high preference among the farmers (52.45%) because of its easy management and high resistance to disease, 41.2% percent farmers preferred crossbred cattle. Main reasons behind preference for Deshi cattle were easy management (24.48%) and lower feed requirement (12.59%) whereas, reason behind crossbred preference (35.66%) was higher milk production. Artificial Insemination (AI) was preferred (61.06%) over natural service (38.94%). For artificial insemination, semen of Holstein Friesian (43.07%) was preferred where Deshi was the second most choice (32.12%). Most of the farmers (82.9%) have no idea about genotype, quality & merit of semen. Average milk yield of Deshi and crossbred genotype were found as 1.72±0.80 and 6.65±5.05 liter per day respectively whereas lactation period and dry period were found respectively as 243.98±113.13 and 92.37±63.14 days in crossbred, 249.69±106.93 and 96.58±32.06 days in Deshi cows. DOI: http://dx.doi.org/10.3329/bjas.v42i2.18485 Bang. J. Anim. Sci. 2013. 42 (2): 89-95
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Boodoo, A. A., R. Ramjee, B. Hulman, F. Dolberg, and J. B. Rowe. "The response of creole, friesian and friesian cross cows to concentrate supplementation on village smallholdings in mauritius." Proceedings of the British Society of Animal Production (1972) 1989 (March 1989): 143. http://dx.doi.org/10.1017/s0308229600011338.
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Milk production in the villages of Mauritius can be characterised as follows: about 90% of the ‘dairy’ cows on the island are owned by villagers. Cattle-rearing is a side-line activity of the family. Most villagers own one cow With a calf. No forage is cultivated. Forage sources for the cattle include sugar cane tops from June to December (harvest season) and shrubs and mixed grasses from road sides and common lands all the year round. All forages are available free and are collected by hand. There is very little or no use of concentrate supplements.The cattle are a mixture of the local Creole breed, Friesians and their crosses. Artificial insemination is widely used. Milk production is generally low (1200-1500 litres per lactation) when compared with European dairy cows. Lactations are normally relatively short (225-250 days) and calving intervals long (15-18 months).Since these cattle contribute more than 90% of the national production of fresh milk it Was decided, within the context of a project financed by the United Nations Development Programme, to investigate the extent to Which their productivity could be improved.
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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 milk, 7.0 kg fat and 6.3 kg protein per year since 1980. Genetically, the relative emphasis realized for production traits versus overall type during the past 5 yr has followed the 60:40 breeding goal represented in the Lifetime Profit Index, which has increased at an average rate of 0.28 standard units per year. Examination of the generation interval in the Canadian Holstein breed, associated with each of the four pathways for genetic improvement, indicates a 46% increase in the rate of annual genetic gain today compared to 20 yr ago. The increased accuracy and intensity of selection associated with the use of AI and genetic evaluations have also contributed to the rates of phenotypic and genetic progress achieved over the years. In the future , AI will continue to be a critical component of the genetic gains possible in dairy cattle breeding but it will be complemented by other reproductive technologies aimed at further reducing generation intervals and increasing the accuracy and selection of intensity, especially on the female side. Key words: Dairy cattle, artificial insemination, genetic progress, genetic evaluation
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Manomohan, Vandana, Ramasamy Saravanan, Rudolf Pichler, et al. "Legacy of draught cattle breeds of South India: Insights into population structure, genetic admixture and maternal origin." PLOS ONE 16, no. 5 (2021): e0246497. http://dx.doi.org/10.1371/journal.pone.0246497.
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The present study is the first comprehensive report on diversity, population structure, genetic admixture and mitochondrial DNA variation in South Indian draught type zebu cattle. The diversity of South Indian cattle was moderately high. A significantly strong negative correlation coefficient of -0.674 (P<0.05) was observed between the effective population size of different breeds and their estimated FIS. The genetic structure analysis revealed the distinctness of Kangayam, Vechur and Punganur cattle from the rest of the zebu breeds. The results showed the influence of Hallikar breed in the development of most Mysore type cattle breeds of South India with the exception of Kangayam. Bayesian clustering analysis was performed to assess the taurine admixture in South Indian zebu cattle using purebred Jersey and Holstein-Friesian as reference genotypes. Relatively high levels of taurine admixture (>6.25%) was observed in Punganur, Vechur, Umblachery and Pulikulam cattle breeds. Two major maternal haplogroups, I1 and I2, typical of zebu cattle were observed, with the former being predominant than the later. The pairwise differences among the I2 haplotypes of South Indian cattle were relatively higher than West Indian (Indus valley site) zebu cattle. The results indicated the need for additional sampling and comprehensive analysis of mtDNA control region variations to unravel the probable location of origin and domestication of I2 zebu lineage. The present study also revealed major concerns on South Indian zebu cattle (i) risk of endangerment due to small effective population size and high rate of inbreeding (ii) lack of sufficient purebred zebu bulls for breeding and (iii) increasing level of taurine admixture in zebu cattle. Availability of purebred semen for artificial insemination, incorporation of genomic/molecular information to identify purebred animals and increased awareness among farmers will help to maintain breed purity, conserve and improve these important draught cattle germplasms of South India.
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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 during July. In line with the enhancement of RT the pregnancy rate decreased in all groups; the lowest (cows) and the highest (heifers) value was observed in July. Moderate to high negative coefficients of correlation were detected between rectal temperature and pregnancy rate for particular groups (r = −0.3 – −0.7). More than 92% of ET, 48% and 16% of inseminated heifers and cows were pregnant up to the category of 39.1<sup> </sup>°C of RT, above this it did not change considerably in the inseminated groups. In inseminated animals with RT higher than 39.1 °C significantly higher services per conception could be observed contrary to ET heifers. ET may become a more effective strategy to improve pregnancy success in heifers compared to AI during summer.
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Skalova, Iva, Tamara Fedorova, and Karolina Brandlova. "Saliva Crystallization in Cattle: New Possibility for Early Pregnancy Diagnosis?" Agricultura tropica et subtropica 46, no. 3 (2013): 102–4. http://dx.doi.org/10.2478/ats-2013-0018.
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Abstract Saliva sampling is a non-invasive, simple and low-cost procedure. The aim of this study was to confirm the presence and changes of saliva crystallization in domestic cattle during synchronized oestrous cycle and early pregnancy. We verified saliva crystallization as a method for early pregnancy diagnosis. Eight Holstein cows were included into the research. The samples were collected daily from 16th day before to 34th day after artificial insemination (in total 51 days). We observed the following types of crystallization: none, dotted, branch-like, fir-like, fern-like and combinations of them and an atypical pattern. We confirmed the presence of saliva crystallization in cattle and its changes during oestrus synchronization process, insemination and post-insemination periods. We found significant differences in pregnant and non-pregnant animals between 20th and 29th day after insemination. We concluded that pregnancy diagnosis by saliva crystallization might be possible but the practical application of this method is currently unfeasible.
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Ferris, C. P., D. C. Patterson, and D. J. Kilpatrick. "A comparison of the reproductive performance of Holstein-Friesian and Norwegian Red dairy cattle on commercial dairy farms over five lactations." Proceedings of the British Society of Animal Science 2009 (April 2009): 61. http://dx.doi.org/10.1017/s1752756200029008.
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Fertility traits have been included within breed selection programmes for the Norwegian Red (NR) dairy cow population in Norway for over thirty years. As a consequence, a 60 day non-return rate to first artificial insemination (AI) of 72.5% was recently calculated for NR cows in Norway (Garmo et al., 2008). In view of this long term breeding programme, and current fertility performance within Norway, there is considerable interest in the NR breed as a means of overcoming the high levels of infertility that currently exist within the Holstein-Friesian (HF) breed. However, farming systems within Norway are very different from those within the UK, with herd sizes in particular being much smaller. Thus an experiment was established on 19 commercial dairy farms to compare the fertility performance of cows of the NR and HF breeds.
Dissertations / Theses on the topic "Holstein-Friesian cattle. Cattle Artificial insemination"
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Ribeiro, Maria Madalena Raio Costa. "Estudo retrospetivo de índices reprodutivos em vacas frísias Holstein : análise preliminar da utilização de um protocolo de ressincronização de ovulação." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2018. http://hdl.handle.net/10400.5/16471.
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Dissertação de Mestrado Integrado em Medicina Veterinária<br>O setor do leite atravessa uma grande crise na Europa devido nomeadamente ao fim das quotas leiteiras, à redução de importações, abrandamento do crescimento da economia chinesa. Em Portugal, apesar de excedentário na produção leiteira em natureza, o país importou vários milhões de euros em produtos lácteos. Os excedentes de produção estão relacionados com a diminuição do consumo per capita de leite em natureza que se tem observado nos últimos anos. De forma a ultrapassar algumas dificuldades, deverão ser adotadas várias medidas entre as quais, a melhoria dos parâmetros reprodutivos. Com este intuito, realizou-se o presente estudo, de modo a verificar se a introdução de um protocolo que permitisse a re-inseminação precoce a tempo fixo, seria vantajosa para a exploração. Para o estudo foram avaliadas 83 vacas do ano em que realizaram a inseminação artificial apenas quando detetadas em cio e 86 vacas do ano em que foi introduzido o protocolo de ressincronização da ovulação. Quando calculadas as medianas, registou-se uma diminuição de 45 para 17,5 dias abertos, verificando-se uma melhoria dos parâmetros reprodutivos. Após a aplicação da metodologia do orçamento parcial de substituição, constatou-se que a utilização do protocolo de ressincronização foi vantajosa para a exploração também a nível económico, tendo se obtido como benefício líquido de substituição um valor de 249,14€/vaca.<br>ABSTRACT - Retrospetive study of reproductive indexes in Holstein Friesian cows: preliminary study of the use of a protocol for ovulation re-synchronization - The milk sector is undergoing a major crisis in Europe due namely to the end of milk quotas, reducing imports and the slower growth of the Chinese economy. Despite a surplus in dairy production, Portugal imported several million euros in dairy products. The production surpluses are related with the decrease in milk consumption per capita that has been observed in the previous years. In order to overcome certain difficulties, several measures must be adopted, including the improvement of reproductive parameters. To achieve this purpose, the present study was carried out in order to verify if the introduction of a protocol that allows a fixed time artificial re-insemination would be advantageous for the dairy farm. In the present study, 83 cows were evaluated regarding the year in which the artificial insemination was performed only due to detection of oestrus, and another 86 cows were evaluated regarding the year of the introduction of the ovulation re-synchronization protocol.
When the medians were calculated, a decrease in the open days, from 45 to 17,5, was observed and was also attested an improvement in the reproductive parameters. After applying the methodology of the partial analysis budget, it was found that the application of the re-synchronization protocol was advantageous for the dairy farm, not only in terms of open days, but also economically, and a net benefit of substitution of 249,14 € per cow was obtained.<br>N/A
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Buttrey, Brad Sterling. "Human chorionic gonadotropin and gonadotropin-releasing hormone influence pregnancy survival and resynchronized ovulation before timed artificial insemination in Holstein cattle." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/542.
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