Citations with the tag: CATTLE -- Reproduction

Results 51 - 100

  • Is that open cow worth 5 bales of hay?
    GOLDEN, PAM // Southern Farmer (1541-2008); Aug2011, Vol. 10 Issue 8, p29 

    The article reports that beef cattle researcher Neal Schrick has computed the science-based process for cattle producers to decide whether to carry an open cow.

  • Rancher's guide to diagnosing abortion.
    McDONALD, STEVE // Missouri Ruralist; Apr2013, Vol. 153 Issue 4, pBP8 

    The article offers the author's view on diagnosing bovine abortion which is caused by leptospirosis.

  • A new in-calf measure.
    Burke, Chris // New Zealand Dairy Exporter; Aug2005, Vol. 80 Issue 13, p48 

    Focuses on measurement of calving performance in cows. Calving pattern in New Zealand; Ways to reduce empty calving rate; Impact of calving pattern on milk production of cows.

  • Helping the suckler cow at calving.
    Burke, Chris // Irish Farmers Monthly; Jan2010, p45 

    The article discusses ways to assist suckler cows at calving including heavy calves, pelvic size problems of cows and abnormally positioned calf. It suggests that one should ensure that the equipment needed for calving is washed and ready to use including ropes, lubricant gloves and calving...

  • Treatment claims extra 10 days in milk.
    Burke, Chris // New Zealand Dairy Exporter; Sep2009, Vol. 85 Issue 2, p140 

    The article deals with the use of Eprinex treatment in shortening the conception period in cows at calving. The treatment results to additional milk solids (MS) as shown by a trial on the farm of Gerry Reymer in Waikato, New Zealand in the 2006-2007 season. A comparison of MS produced by treated...

  • Demand surges for more efficient cows.
    Newport, Alan // Dakota Farmer; Feb2014, Vol. 133 Issue 2, Special section pBP3 

    The article discusses increased demand of grass-efficient cattle in the cow-calf sector especially beef industry and also mentions about the downsizing of cow size was introduced by ranching consultants Kit Pharo, Walt Davis and Jim Lents.

  • Demand surges for more efficient cows.
    Newport, Alan // Indiana Prairie Farmer; Feb2014, Vol. 188 Issue 2, pBP3 

    The article discusses increased demand of grass-efficient cattle in the cow-calf sector especially beef industry and also mentions about the downsizing of cow size was introduced by ranching consultants Kit Pharo, Walt Davis and Jim Lents.

  • Reproduction required; benefits follow.
    Newport, Alan // Wallaces Farmer; Oct2011, Vol. 136 Issue 10, following p52 

    The article focuses on the benefits gained by Bradley 3 Ranch owners Bill and Minnie Lou Bradley and James Henderson and wife Mary Lou Bradley of Childress, Texas, on the reproductive and physical soundness of cows in creating a herd of efficient, long-lived and adapted cattle. INSETS:...

  • Genetics are local at Bradley 3 Ranch.
    Newport, Alan // Wallaces Farmer; Oct2011, Vol. 136 Issue 10, following p52 

    The article focuses on the claims of James Henderson, one of the Bradley 3 Ranch owner in Childress, Texas, on a little outside genetics they brought to the ranch to keep their herd numbers current.

  • WINNING THE IN-CALF RACE.
    Newport, Alan // New Zealand Dairy Exporter; Aug2014, Vol. 90 Issue 1, p58 

    An introduction to a journal section is presented which discusses topics such as improving cattle reproductive performance and the family farm business Generation Farms.

  • Consider milk EPDs an anti-maternal trait.
    Newport, Alan // Ohio Farmer; Feb2013, Vol. 309 Issue 2, pBP7 

    The article discusses on breeding of cattle to increase their reproductive efficiency and informs that milk expected progeny difference (EPD) is a maternal trait.

  • Evaluating the reproductive performance of British beef and dairy herds using national cattle movement records.
    Gates, M. C. // Veterinary Record: Journal of the British Veterinary Association; 11/23/2013, Vol. 173 Issue 20, p1 

    National cattle movement databases provide a valuable opportunity to monitor the reproductive performance of breeding cattle on an industry-wide scale. In this analysis, records from the Cattle Tracing System database were used to derive key measures of reproductive efficiency for British beef...

  • WHEN THE HEAT IS ON….
    Macmillan, Shirley // Farmers Weekly; 6/16/2006, Vol. 144 Issue 24, p52 

    This article deals with heat detection in dairy cows to determine mating conditions. As dairy herds become larger, heat detection is an increasingly important issue. Modern high-yielding Holsteins show heat less strongly, and it means they need watching more to reduce the cost of poor fertility...

  • 'Buying' success -- at a cost.
    Blackwell, Mark // New Zealand Dairy Exporter; Jul2010, Vol. 85 Issue 12, p104 

    The article discusses issues related to calving and reproductive performance in dairy cattle. The goal of dairy farmers is the efficient utilisation of grazed pasture and conversion into milksolids (MS), which contributes to a profitable dairy farm system. A source of how New Zealand dairy herds...

  • Cumulative Risk of Bovine Mastitis Treatments in Denmark, Finland, Norway and Sweden.
    Valde1, J. P.; Lawson, L. G.; Lindberg, A.; Agger, J. F.; Saloniemi, H.; �ster�s, O. // Acta Veterinaria Scandinavica; 2004, Vol. 45, p201 

    Data from the national dairy cow recording systems during 1997 were used to calculate lactation-specific cumulative risk of mastitis treatments and cumulative risk of removal from the herds in Denmark, Finland Norway and Sweden. Sweden had the lowest risk of recorded mastitis treatments during...

  • EFFECT OF SOME ENVIRONMENTAL FACTORS ON MILK ACETONE LEVEL AND THEIR RELATIONSHIP WITH MILK YIELD AND SOME CONTENTS.
    Hana, Sameer S.; Ayied, Asaad Y.; Abdullrada, Ali J. // Basrah Journal of Agricultural Sciences; 2007, Vol. 20 Issue 2, p75 

    This study was conducted in some private farms at Al-Hartha, Basrah province. Milk samples (384) were collected from 16 cows for six month after calving. The aim was to study the effect of calving season, month after parturition, parity and milking time on milk acetone. Effect of acetone levels...

  • When will she calve?
    THOMAS, HEATHER SMITH // Countryside & Small Stock Journal; Jan/Feb2009, Vol. 93 Issue 1, p92 

    The article offers information as to when a cow will give birth. It is stated that cows generally give birth about nine months and seven days after conception with an average length of the pregnancy being 283 days. One of the surest ways to predict calving is when a cow lets a person walk up and...

  • Setting Standards For Replacement Heifers.
    Radke, Amanda // Beef Expert Blog; 6/ 8/2012, p8 

    The article offers tips for cattle farmers on managing replacement heifers. These tips are from John F. Grimes, Ohio State University Extension beef coordinator. Grimes highlights the importance of maintaining strict reproductive standards on female cows. Producers are advised to determine...

  • Strategically use sex-sorted semen.
    Laudert, Scott B. // BEEF Exclusive Insight; 2/2/2011, p6 

    The article advises producers within the beef industry to use sex-sorted semen in a strategical manner to improve conception rates. It cites the disadvantages of artificial insemination (AI) use of sexed semen, including cost. It explains the additional cost for sexed semen, in comparison to...

  • Seven Tips For Ranching Success.
    Stalcup, Larry // BEEF Exclusive Insight; 9/1/2011, p9 

    The article offers suggestions for rancher owner managers,. The value of investing on herd health plan is explained. It elaborates the importance of monitoring a calf's reproductive performance in terms of weaning rates. Tha article also advises about observing the supply of forage for grazing cows.

  • Breed effects and individual heterosis for pregnancy, calving and weaning rates in Criollo, Guzerat and F1 cows.
    Mart�nez Vel�squez, Guillermo; Monta�o Berm�dez, Mois�s; Palacios Fr�nquez, Jos� Antonio // T�cnica Pecuaria en M�xico; may-ago2006, Vol. 44 Issue 2, p143 

    Reproductive records of beef cows were collected in 2000, 2001, 2002 and 2003 to estimate direct and maternal genetic effects and to compare estrous (ER), pregnancy (PR), calving (CR) and weaning (WR) rates. Data was collected from Guzerat (G, n=202), Criollo (C, n=126), Criollo x Guzerat (CG,...

  • Preg-Checking Options.
    Thomas, Heather Smith // BEEF; Nov2010, Vol. 47 Issue 3, p32 

    The article offers tips on how to check cows for pregnancy in the U.S. It cites and discusses the advantages and disadvantages of the options for testing which cow-calf producers could choose from including palpitation, ultrasound, and blood test. It notes the reasons for pregnancy check which...

  • Association between Neospora caninum seropositivity and perinatal mortality in dairy heifers at first calving.
    Brickell, J. S.; McGowan, M. M.; Wathes, D. C. // Veterinary Record: Journal of the British Veterinary Association; 7/17/2010, Vol. 167 Issue 3, p82 

    Associations between Neospora caninum infection and the reproductive performance of dairy heifers in their first and second pregnancy on 18 UK farms were examined. Six-month-old heifer calves were tested for N caninum-specific antibodies with a commercial ELISA, and were then monitored until...

  • Winter Prep Essential For Beef Cowherd Management.
    Gee, Amanda // Beef Expert Blog; 12/14/2012, p1 

    The article discusses techniques on how cattle producers in the U.S. can maintain the gain rate and protect their herd during the spring calving season. According to Purdue Extension beef specialist Ron Lemenager, cattle producers can help their cattle deal with cold-induced energy loss by...

  • A comparison of production traits between horned and polled Romanian Brown Cattle.
    Onaclu, Grigore; Pentelescu, Ovidiu; Jurco, Eugen // Animal Biology & Animal Husbandry; 12/30/2012, Vol. 4 Issue 2, p58 

    Cattle are subject to a multiple invasive and painful procedures which may have short term and long term consequences. Examples affecting cattle include castration, dehorning, branding and tail-docking. Selection and breeding of polled cattle has been proposed as an alternative because it...

  • CATTLE REVIEW.
    Onaclu, Grigore; Pentelescu, Ovidiu; Jurco, Eugen // Livestock (Electronic); Nov2011, Vol. 16 Issue 7, p12 

    This section discusses research on the effects of lameness on cattle reproduction. A study in the journal "Theriogenology" has found that milk progesterone in lame cows is lower than the healthy ones. Another study in "Theriogenology" has shown that embryo reduction by manual amnion rupture does...

  • Trying To Decide On My Winter Deadline.
    Marshall, Troy // Beef Expert Blog; 12/7/2012, p4 

    The author shares lessons he learned about preparing for the calving season. According to the author, it is more enjoyable to winterize water tanks at 50 degrees Fahrenheit than at -10. He also points that things change rapidly and frequently, and that no change is permanent. He explains that...

  • EFSA launches draft opinion on animal cloning.
    Marshall, Troy // Irish Veterinary Journal; Feb2008, Vol. 61 Issue 2, p75 

    The article reports that the European Food Safety Authority (EFSA), the Occupational Health & Safety Information Service's online subscription, has launched a draft scientific opinion concerning animal cloning. The draft opinion concluded that somatic cell nucleus transfer (SCNT) can be used...

  • Strategies are there to help.
    Blackwell, Mark // New Zealand Dairy Exporter; Jan2008, Vol. 83 Issue 6, p88 

    The article provides insights for dairy farmers on several pregnancy-testing strategies for cows. Among the uses of pregnancy testing are identifying empty cows as culls and providing expected calving dates if selling cows. The aim of late pregnancy testing is to determine cows that failed to...

  • Smith aims to improve value of Mississippi cattle.
    Templeton, Karen // Delta Farm Press Exclusive Insight; 4/25/2013, p4 

    The article features Professor David Smith from the College Of Veterinary Medicine at Mississippi State University (MSU). Smith has 30 years of experience in cattle production systems and disease control, and aims to help producers to improve their cattle's marketability. The article also...

  • Concentrations of Some Minerals in Cows with Retained Placenta and Abortion.
    Akar, Yaşar; Yildiz, Hamit // Turkish Journal of Veterinary & Animal Sciences; 2005, Vol. 29 Issue 5, p1157 

    This study was undertaken to investigate the relationship between blood levels of Ca, Zn, Mg, K, and Na and the occurrence of retained placenta and abortion in cows. Serum samples from 34 cows were analyzed (18 with retained placenta, 10 without retained placenta (control), and 6 that had...

  • Management of Calving in Norwegian Cubicle-Housed Dairy Herds.
    Kjæstad, H. P.; Simensen, E. // Acta Veterinaria Scandinavica; 2001, Vol. 42, p131 

    Sixty of the 65 dairy farms with cubicle houses in the Norwegian county of Oppland were included in a field study of the management of calving in 1990. The farmers recorded the location of the cow when giving birth, farmer presence and whether assistance was given during calving, occurrence of...

  • Inducing as a last resort, not a first choice.
    Hockings, Brian // New Zealand Dairy Exporter; Oct2005, Vol. 81 Issue 3, p62 

    Considers the use of induced earlier calving as a farm management tool. Reasons behind the reluctance to use induced earlier birth; Effects of induced earlier calving on the cow; Factors that should be considered when planning to induce earlier calving.

  • Efecto del amamantamiento restringido en los conteos de células somáticas en vacas holstein cruzadas.
    Andrade B., Roy; Pulido M., Martin; Molano P., Diana // Revista MVZ Córdoba; may-ago2010, Vol. 15 Issue 2, p2095 

    Objective. To assess the effect of restricted suckling on somatic cell counts (SCC) in Holstein Friesian crossed. Materials and methods. The study area is located in the Valley of Cuche municipality of Santa Rosa de Viterbo (Boyaca, Colombia). The experimental sample was formed of 20 primiparous...

  • COMPARISON OF PRID + PGF2 + GNRH AND GNRH + PGF2 + GNRH PROTOCOLS IN THE TREATMENT OF POSTPARTUM ANESTRUS COWS.
    Ergene, Osman // Scientific Papers: Series D, Animal Science - The International ; Oct2011, Vol. 54, p182 

    The objective of this study was to determine the effects of two protocols on fertility parameters of postpartum anestrus cows. Fifty postpartum anestrus cows were used as material of the study. In Group 1 (n: 25), postpartum anestrus cows received PRID on Day0 with ostradiol benzoate (10 mg,...

  • FACTORS AFFECTING DAYS OPEN IN BULGARIAN MURRAH BUFFALO COWS.
    Peeva, T. Z.; Penchev, P.; Ilieva, Y.; Boichev, M. // Scientific Papers: Series D, Animal Science - The International ; Oct2011, Vol. 54, p205 

    5742 Bulgarian Murrah buffalo cows, bred on seven national farms in the period 1980-2009, were assigned with the objective to study the specific effects of different factors and combination of factors on days open. The data were processed using the software products LSMLMW and MIXMDL (Harvey,...

  • Make sure your bulls have the power.
    Burke, Chris // New Zealand Dairy Exporter; Nov2006, Vol. 82 Issue 4, p45 

    The article focuses on bull power requirements. It discusses the signs that bull power requirements have increased including more cows, and a shorter artificial breeding period. It examines the link of exercise to the poor pregnancy rates during most of the natural mating period. It also...

  • The other side of calving.
    Nolly, Ross // New Zealand Dairy Exporter; Nov2006, Vol. 82 Issue 4, p55 

    The article discusses the problems associated with calving. The season of calving begins in July when the south Taranali calving season starts and runs seven days a week without break for around four months. The population of cattle gradually decreases until the season ends usually in late October.

  • Factores de riesgo asociados a la presencia de aborto y desempeño reproductivo en ganado lechero de Aguascalientes, México.
    Meléndez Soto, Rosa María; Valdivia Flores, Arturo Gerardo; Rangel Muńoz, Erika Janeth; Díaz Aparicio, Efrén; Segura-Correa, José C.; Guerrero Barrera, Alma Lilián // Revista Mexicana de Ciencias Pecuarias; oct-dic2010, Vol. 1 Issue 4, p391 

    No abstract available.

  • Abortion risk factors and reproductive performance of dairy cattle in Aguascalientes, Mexico.
    Meléndez Soto, Rosa María; Valdivia Flores, Arturo Gerardo; Rangel Muńoz, Erika Janeth; Díaz Aparicio, Efrén; Segura-Correa, José C.; Guerrero Barrera, Alma Lilián // Revista Mexicana de Ciencias Pecuarias; oct-dic2010, Vol. 1 Issue 4, p391 

    The objectives of this study were to determine the effect of risk factors on the occurrence of abortion and their impact on select reproductive efficiency parameters in dairy herds in Aguascalientes, Mexico. Three hundred and fifty three (353) serum samples from aborted or non-aborted cows in 23...

  • Seven fall steps to calving success.
    Hilton, W. Mark // BEEF; Nov2004, Vol. 41 Issue 3, p18 

    The article presents tips for calving success. The most cost-effective measure one can do is to be sure that he/she is only feeding pregnant cows through the winter months. Many herds vaccinate for the wrong diseases at the wrong times, or don't vaccinate for diseases they could prevent. There...

  • EFFECT OF GnRH ADMINISTRATION ON FERTILITY IN CROSSBRED DAIRY CATTLE.
    Hilton, W. Mark // Indian Journal of Field Veterinarians; 2011, Vol. 6 Issue 3, p70 

    The article offers information on the research conducted by the authors related to the impact of GnRH administration on the fertility of dairy cattle. It states that administration of GnRH or its analogue provides necessary stimulus to initiate the estrus cycle by the release of gonadotrophins,...

  • Making the most of good spring growth.
    Hockings, Brian // New Zealand Dairy Exporter; Nov2011, Vol. 87 Issue 4, p144 

    The article focuses on the upward trend in spring growth at the Stratford Demonstration Farm in New Zealand in 2011. The farm reduces the grazing round to around 25 days at the onset of healthy spring growth. Pasture cover post-grazing has prompted the farm not to speed up the rotation and...

  • Follicular fluid hydrogen peroxide and lipid hydroperoxide in bovine antral follicles of various size, atresia, and dominance status.
    Hennet, Margo; Yu, Hope; Combelles, Catherine // Journal of Assisted Reproduction & Genetics; Mar2013, Vol. 30 Issue 3, p333 

    Purpose: To avoid inducing a state of oxidative stress (OS), assisted reproductive technologies (ART) must maintain a balance of reactive oxygen species (ROS) and antioxidants during the in vitro culture of oocytes. However, oocyte requirements and tolerance thresholds for ROS during in vivo...

  • 6 Resources To Help You Succeed This Calving Season.
    Purfeerst, Jamie // Beef Expert Blog;  

    The article suggests several resources and ideas for a successful calving season. These include "Calving Checklist: Everything You Need To Know & Have Before 2014 Calving," how to know when to intervene when calving first-calf heifers, and how to use a calf puller. Also mentioned is managing...

  • Compact calving all-important.
    Bryant, Jeremy // New Zealand Dairy Exporter; Oct2010, Vol. 86 Issue 3, p131 

    The article emphasizes the importance of compact calving for the herd production and profit of dairy farms. It outlines the calving targets that should be met by farms. It relates that failure to meet targets would result to an extension of calving pattern. To ensure compact calving, farmers...

  • Big savings in calving -- this year and next.
    Searle, Steve // New Zealand Dairy Exporter; Oct2010, Vol. 86 Issue 3, p140 

    The article deals with the benefits of using DairyNZ's InCalf programme for the dairy farm of Roger Lumsden in Waikato, New Zealand. The farm has already posted improvements valued at 59, 200 New Zealand dollars and is set to repeat the savings in the current season. It relates the impact of...

  • Reach for the (fertility) stars.
    Stanz, Emile // New Zealand Dairy Exporter; Oct2010, Vol. 86 Issue 3, p146 

    The article discusses the "InCalf Fertility Focus Report," a tool from DairyNZ to help dairy farmers in New Zealand reach their targets for their herd's reproductive performance. The tool can be applied to seasonal, split and year-round calving systems. It relates that the tool offers a scoring...

  • Cloned Replacement Tissues No Longer Science Fiction.
    Stanz, Emile // Urology Times; Feb2000, Vol. 28 Issue 2, p23 

    Reports on the successful transfer of human DNA into enucleated bovine oocytes as explained by Advanced Cell Technology president and chief executive officer Michael D. West during the American Society for Reproductive Medicine annual meeting. Culture of small cluster of cells to produce...

  • Don't Save Pennies To Waste Dollars By Skipping A BSE.
    Griffith, Andrew P. // Beef Expert Blog; 4/24/2014, p1 

    The article discusses the importance of performing a Breeding Soundness Evaluation (BSE) on the herd sires before cattle breeding season. Topics discussed include questions to consider when weighing the value of performing a BSE, the cost benefits of having a fertile bull and the need to...

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