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Journal articles on the topic 'Dairy cattle – Breeding – Québec (Province)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

NIE, JING, GUI-QUAN SUN, XIANG-DONG SUN, et al. "MODELING THE TRANSMISSION DYNAMICS OF DAIRY CATTLE BRUCELLOSIS IN JILIN PROVINCE, CHINA." Journal of Biological Systems 22, no. 04 (2014): 533–54. http://dx.doi.org/10.1142/s021833901450020x.

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Dairy cattle brucellosis is a chronic bacterial disease, which is caused by Brucella abortus and mainly characterized by abortion in dairy cattle. With the rapid development of breeding industry of milk cows in China, the infectious cases of dairy cattle brucellosis show an increasing trend. Particularly in Jilin province, the annual number of the positive cases of dairy cattle was only 3 cows in 1987, and went up to 168 cows in 2005. Based on the situation of the brucellosis infection in Jilin province, we propose an Susceptible-Exposed-Infected-Virus (SEIV) dynamical model with outside trans

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2

Hagan, Bernard Ato, and Roger Cue. "Generation intervals in Canadian dairy cattle herds." Canadian Journal of Animal Science 100, no. 1 (2020): 175–83. http://dx.doi.org/10.1139/cjas-2019-0053.

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Genetic evaluation records for the Canadian Holstein, Ayrshire, Jersey, and Brown Swiss bulls and cows born from 1950 and 1960, respectively, were used to study the generation intervals (L) along the four-path selection model. The objectives of the study were to determine the L in the four dairy cattle breeds and the effects of some environmental factors and variations among herds or artificial insemination (AI) studs on the L achieved. Total L of the four selection paths was reduced by 55% from 29.2 yr in 1980 to 13.2 yr in 2016 in the Holstein breed. Substantial reductions in total L were al

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3

Borusiewicz, Andrzej. "Technological Preconditions in Dairy Farms." Agricultural Engineering 21, no. 2 (2017): 59–68. http://dx.doi.org/10.1515/agriceng-2017-0016.

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AbstractThe paper presents the impact of the applied technologies on milk yield of cows in dairy farms. The scope of the research covered technical equipment used in the dairy cattle breeding and milking in 50 farms on the area of Grajewo Province in Podlaskie Voivodeship. The studies were carried out in 2016 with the diagnostic survey method based on the interview questionnaire developed for this purpose. The studies proved that 68% of the respondents from Grajewo Province maintain cattle in a stanchion-tide stable system and the remaining 32% in a free stall system. The group (48%) of the su

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4

Aleksic, S., S. Sunfang, Z. Jingming, et al. "Cattle production: PR China and Republic of Serbia." Biotehnologija u stocarstvu 28, no. 4 (2012): 635–48. http://dx.doi.org/10.2298/bah1204635a.

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The paper presents data on the cattle industry in the People's Republic of China and the Republic of Serbia. China is the third largest dairy producing country and the third largest beef producing country in the world. In 2011, the dairy cow population in China was 14.4 million. Chinese dairy breed is mainly obtained by grading hybridization from Holstein, Simmental, etc. which were introduced from foreign countries, and local cattle breeds for long time to form the offspring with stable genetic characteristics. Currently, the dairy breeds cultured in China mainly include Chinese Holstein, Chi

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5

Lardé, Hélène, David Francoz, Jean-Philippe Roy, et al. "Comparison of Quantification Methods to Estimate Farm-Level Usage of Antimicrobials in Medicated Feed in Dairy Farms from Québec, Canada." Microorganisms 9, no. 9 (2021): 1834. http://dx.doi.org/10.3390/microorganisms9091834.

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Monitoring antimicrobial usage (AMU) in dairy cattle is becoming common in a growing number of countries, with the ultimate goal to improve practices, reduce the development of antimicrobial resistance, and protect human health. However, antimicrobials delivered as feed additives can be missed by some of the quantification methods usually implemented. Our objective was to compare three methods of quantification of in-feed AMU in Québec dairy herds. We recruited 101 dairy producers for one year in the Québec province. Quantities of antimicrobials were calculated by farm from: (1) feed mills inv

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Alapala Demirhan, Sibel, and Mevlüt Yenilmez. "Uşak İli Süt Sığırı Yetiştiriciliğinin Mevcut Durumu Sorunları ve Çözüm Önerileri." Turkish Journal of Agriculture - Food Science and Technology 7, no. 12 (2019): 2198. http://dx.doi.org/10.24925/turjaf.v7i12.2198-2203.2951.

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In this study, it was aimed to determine the organizational structure, current state and problems of the dairy cattle breeding enterprises in the province of Uşak and to develop solutions to these problems according to the number of cattle they have. In the study, a questionnaire consisting of 95 questions was applied to 165 enterprises owners selected by multi-stage random sampling method and the obtained data were evaluated with the help of SPSS program package. Enterprises are grouped by animal assets; the enterprises having 1-9 heads cattle were classified as the first group, the enterpris

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7

Lardé, Hélène, David Francoz, Jean-Philippe Roy, et al. "Comparison of Quantification Methods to Estimate Farm-Level Usage of Antimicrobials Other than in Medicated Feed in Dairy Farms from Québec, Canada." Microorganisms 9, no. 5 (2021): 1106. http://dx.doi.org/10.3390/microorganisms9051106.

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The objective of the study was to compare three quantification methods to a “garbage can audit” (reference method, REF) for monitoring antimicrobial usage (AMU) from products other than medicated feed over one year in 101 Québec dairy farms. Data were collected from veterinary invoices (VET method), from the “Amélioration de la Santé Animale au Québec” provincial program (GOV method), and from farm treatment records (FARM method). The AMU rate was reported in a number of Canadian Defined Course Doses for cattle (DCDbovCA) per 100 cow-years. Electronic veterinary sales data were obtained for al

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8

Nasrulloh, Mukh Fajar, Ari Sulistyo Wulandari, Indriawati Indriawati, Endang Tri Margawati, and Slamet Diah Volkandari. "Detection of the CD18 gene mutation as a marker of BLAD genetic disorder of Holstein-Friesian cattle in West Java." Livestock and Animal Research 18, no. 2 (2020): 116. http://dx.doi.org/10.20961/lar.v18i2.42933.

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<p class="MDPI17abstract"><strong>Objective: </strong>Bovine Leukocyte Adhesion Deficiency (BLAD) is a genetic disorder in Holstein-Friesian (HF) cattle that have a significant economic impact on dairy cattle breeding. Mutation c.383A&gt;G in Cluster of Differentiation Molecule 18 (CD18) gene was known as related to BLAD. This study aimed to detect the CD18 gene mutation that causes BLAD of HF cattle in the West Java Province.</p><p class="MDPI17abstract"><strong>Methods: </strong>The genomic DNA was extracted from 88 blood samples of HF cattle fro

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9

Jankovic, Dobrila, Bozidarka Markovic, Radica Djedovic, Snezana Trivunovic, and Momcilo Saran. "Genetic parameters of the type traits of Holstein-Friesian primiparous dairy cows." Genetika 53, no. 2 (2021): 533–44. http://dx.doi.org/10.2298/gensr2102533j.

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The aim of this study was to determine the level and variability of type traits in primiparous Holstein-Friesian cows, as well as to assess the additive genetic variance of type traits and heritability coefficients. The research was conducted on a data set of linearly evaluated primiparous Holstein-Friesian cows, which is ceded by the Main dairy cattle breed organization in the Province of Vojvodina, which is a unit of the Department of Animal Science, at the Faculty of Agriculture in Novi Sad. Data of 24226 primiparous Holstein-Friesian cows, refer to the period 2012-2015, were analysed. The

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10

Pietersma, D., R. Lacroix, D. Lefebvre, R. Cue, and K. M. Wade. "Trends in growth and age at first calving for Holstein and Ayrshire heifers in Quebec." Canadian Journal of Animal Science 86, no. 3 (2006): 325–36. http://dx.doi.org/10.4141/a05-080.

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The objective was to provide an overview of heifer growth in Quebec and analyze its relationship with age at first calving. Heifer body weights, wither heights, body condition scores, and breeding events collected from 1993 to 2003 were obtained and combined with first lactation data, mature body weights, type classification final score and frame/capacity, and estimated breeding values for milk, conformation, frame/capacity, and Lifetime Profit Index. Analyses were restricted to 39 animal-level variables. The resulting data set consisted of 44 989 Holsteins and 2294 Ayrshires with data availab

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11

Feoktistova, N. A. "THE EFFECT OF THE AGE OF SMOOTH BROME (BROMOPSIS INERMIS) STANDS ON THEIR HERBAGE YIELD IN TYUMEN PROVINCE." Proceedings on applied botany, genetics and breeding 180, no. 2 (2019): 30–37. http://dx.doi.org/10.30901/2227-8834-2019-2-30-37.

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Background. The primary specialization branches of agriculture in Tyumen Province are plant production and dairy farming, with cattle husbandry being lately introduced, which implies a demand for feed crops, in particular perennial grasses, among which smooth brome (Bromopsis inermis (Leyss.) Holub) is the most widespread. With such demand in mind, the Research Institute of Agriculture for the Northern Trans-Urals has been engaged in studying pasture grasses in order to find and develop new lines adaptable to local conditions. The purpose of the study was to examine the dynamics in forage prod

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12

Pelozatto Reilly, Mauro. "Ganadería y unidades productivas mixtas en Buenos Aires colonial, 1726-1759." Revista de Historia y Geografía, no. 34 (September 13, 2016): 43. http://dx.doi.org/10.29344/07194145.34.354.

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ResumenEsta investigación se propone caracterizar las unidades productivas del Buenos Aires rural entre 1726-1759, desde la extinción del ganado vacuno cimarrón y las vaquerías, y la división de la campaña bonaerense oriental entre Buenos Aires y Montevideo, hasta la separación del espacio rural entre las jurisdicciones de los cabildos de Buenos Aires y Luján, y la consolidación de las distintas prácticas como recogidas de ganado y de la cría este tipo de hacienda en las estancias. A partir de estadísticas y descripciones sobre padrones rurales, sucesiones y testimonios del cabildo, se desarro

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13

Yazgan, Kemal. "Determining heat stress effect in Holstein dairy cattle using daily milkyield and meteorological data obtained from public weatherstation in Sanliurfa Province of Turkey." Indian Journal of Animal Research, no. 0f (October 4, 2016). http://dx.doi.org/10.18805/ijar.v0i0f.3806.

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The objective of this study was to detect the relationship between weather information, obtained from nearest public weather station, and milk productions of Holstein cows breeding in Sanliurfa province of Turkey. Data used in this study comprised 711,968 first-five parity individual daily milk and live weight records of 939 Holstein cows. Results from this study indicated that using combination of minimum ambient temperature and relative humidity values one day earlier from daily milk yield in temperature – humidity index (THI) formula can be good alternative for determining heat stress in Ho

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14

"Evaluation of The Effects of Milking Hygiene and Sanitation Education on Total Bacterial and Somatic Cell Number of Bulk Tank Milk in Dairy Cattle Breeding." International Journal of Veterinary Science 10, no. 1 (2021): 37–42. http://dx.doi.org/10.47278/journal.ijvs/2020.009.

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Hygiene and sanitation, which are of great importance for the protection of human. Beside this quality and quantity of the milk is very important for human health. The aim of this project is to develop a training model in raw milk hygiene in Aydın province, and to increase knowledge, skills and competencies of vocational/professional groups in raw milk production. Two surveys were conducted for the farm workers to be trained within the scope of the project. Firstly, a demonstrative survey was conducted for the farms where milk hygiene training was provided. The education satisfaction survey wa

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15

Kuèeviæ, D., S. Dragin, I. Pihler, et al. "Effect of age at first calving and other non-genetic factors on longevity and production traits in Holstein cattle under Vojvodina Province condition, Serbia." Indian Journal of Animal Research, of (June 27, 2019). http://dx.doi.org/10.18805/ijar.b-1063.

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The effect of age at first calving (AFC) and various non-genetic factors i.e. season of calving, farm and system of housing on longevity and production traits were investigated. Longevity traits were studied using total lifetime (TL), length of productive life (LPL) and number of lactations (NL) while production was researched using lifetime milk yield (LMY). Data of 2037 Holstein dairy cows were provided by the main breeding organizations at the Faculty of Agriculture, University of Novi Sad. The average values and variability of examined traits as well as the effect of factors on longevity a

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16

Mapaco, Lourenço P., Jacobus A. W. Coetzer, Janusz T. Paweska, and Estelle H. Venter. "An investigation into an outbreak of Rift Valley fever on a cattle farm in Bela-Bela, South Africa, in 2008." Journal of the South African Veterinary Association 83, no. 1 (2012). http://dx.doi.org/10.4102/jsava.v83i1.132.

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In 2008, a suspected outbreak of Rift Valley fever (RVF) was reported on a farm in the Bela-Bela area, Limpopo Province, South Africa. Seven calves died on the affected dairy farm, where no RVF vaccination programme was practised. No apparent clinical disease was reported in the other 300 cattle (33 calves included) or 200 sheep on the farm. During the outbreak, blood samples from 77.7% (233/300) of the cattle and 36.5% (73/200) of the sheep were collected on the affected farm and 55 blood samples were taken from cattle on a neighbouring farm. Eight weeks later, 78% of the cattle (234/300) and

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