Oestrus Synchronization In Cattle Case Study

Great Essays
OESTRUS SYNCHRONISATION IN CATTLE
SHELEMBE KHOLEKA
INTRODUCTION
Most beef and dairy farms in Africa use a pasture based breeding and calf rearing system which requires them to manage their herds such that calving and maximum milk production coincides with the period when the grass and pasture is good and nutritious which mainly occurs during spring and early summer (Xu et al., 1997; Lane et al., 2008). In order to maintain short breeding and calving seasons that would result in calving and peak milk production to coincide with the period when good quality pasture is available a reproductive technology called oestrus synchronisation maybe put to good use (DeJarnette, 2005).
Oestrus synchronisation is the manipulation of the reproductive process, mainly the oestrus cycle or the induction of the oestrus cycle to bring a
…show more content…
Oestrus synchronization can be a useful tool in the reproductive management of a herd. However, proper levels of nutrition, body condition and health of the herd should be maintained to achieve successful oestrus synchronisation.
REFERENCES
DeJarnette, M. 2005. What’s New In Estrus Synchronization?
Hunter, R. H. 1980. Physiology and technology of reproduction in female domestic animals. Academic Press.
Jeong, J. K., H. G. Kang, T. Y. Hur, & I. H. Kim. 2012. Synchronization Using PGF 2α and Estradiol with or without GnRH for Timed AI in Dairy Cows. Journal of Reproduction and Development.
Lane, E., E. Austin, & M. Crowe. 2008. Oestrous synchronisation in cattle—Current options following the EU regulations restricting use of oestrogenic compounds in food-producing animals: A review. Animal reproduction science 109: 1-16.
Larson, L., & P. Ball. 1992. Regulation of estrous cycles in dairy cattle: a review. Theriogenology 38: 255-267.
Odde, K. 1990. A review of synchronization of estrus in postpartum cattle. Journal of Animal Science 68:

Related Documents

  • Improved Essays

    Thirty newborn Montbeliard calves were allotted to 1 of 3 dietary groups according to age and body weight(BW) to determine the effects of different feeding patterns on growth and rumen development. Treatments consisted of pelleted starter(22% crude protein,26% neutral detergent fiber) fed alone(CON) or supplemented with alfafa hay from d 15 (PeA) or texturized starter(23% crude protein, 25% neutral detergent fiber) fed alone(Te). All calves were fed 4 L of colostrum within 1 h of birth and were subsequently fed milk twice daily until weaned on week 8. Rumen samples was taken in week 4,8 and 10 for female calves and in week 4 and 8 for male calves to determine rumen pH and volatile fatty acid concentrations. On d 56, bull calves were havested…

    • 389 Words
    • 2 Pages
    Improved Essays
  • Decent Essays

    They then artificially inseminate the female. One implication of the Belgian Blue Cattle is the health and survival of this species. They suffer from crippling joint and bone problems, also brought on by a lack of sufficient space…

    • 244 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Cow Calf Operations

    • 1526 Words
    • 7 Pages

    First it will allow for efficiency, putting producers attention fully towards cows that will produce a calf, and second it will conserve feed throughout the year for the cows that will produce a calf and furthermore lead to better body condition scores, allowing heifers and cows to endure a shorter calving season and be ready…

    • 1526 Words
    • 7 Pages
    Improved Essays
  • Improved Essays

    In both genders of Shorthorns are transmitted before they are born to grow quicker than other breeds of cattle (“Beef” para. 13). When Shorthorn cows are breeding they attend to be aggressive but are good for rotational breeding (“Beef” para. 12). Within eight years shorthorn bulls have been used in commercial herds and are more aggressive than cows when breeding (“Beef” para. 9). Iowa State University researches and believes that carcass traits are nat as important as economical achievements (“Beef” para. 12). Most calves will have a high potential in growth because when they are born their average weight is 85 pounds (“Beef” para. 11).…

    • 1224 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    After a female primate loses an infant, she is no longer in estrus. Estrus, in female mammals, is the time period when female primates are more likely to conceive, and it correlates with ovulation in humans. (Jurmain, Robert, Lynn, Kilgore, and Wenda Trevathan, 2013) When…

    • 918 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Knopf’s essay mentions that cattle negatively affect the environment through “methane and crop consumption”, but there are several other ways that they are detrimental to the environment. One of these ways that cows damage the environment is through nutrient pollution in water. The Environmental Protection Agency (EPA) reports, “The primary sources of nutrient pollution are; agriculture,” where, “[a]nimal manure, excess fertilizer applied to crops and fields, and soil erosion makes agriculture one of the largest sources of nitrogen and phosphorus pollution in the country.” As one of the leading causes of nutrient pollution, cows should not continue to be raised in current…

    • 728 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    into each 12-L cages, with this relatively low density to avoid effects of crowding on longevity and mating performance. All cages were of clear plastic with a mesh-covered window (ca. 80cm2) for ventilation. No calling, courting, or mating were observed in cages prior to separating the sexes. A L12:D12 h photoperiod was maintained, with flies also experiencing a simulated dawn and dusk as the lights ramped up and down through an additional 1 h at the beginning and end of the light phase. 2.4.2.…

    • 657 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    Hormones in Meat Producers of beef cattle and sheep often implant their animals with growth hormones. The most common way is through implants. Implants are hormones, in a pelleted version, that is injected underneath the skin on the animal’s ear. Overtime, the hormones slowly are released. The hormones found in implants are usually naturally occurring such as estrogen, progesterone, and testosterone, along with some synthetic versions.…

    • 150 Words
    • 1 Pages
    Decent Essays
  • Decent Essays

    1. Pressures on early hominins to adapt to meat-eating • Emergence of early hominins from wetland forests to bipedal open grassland inhabitants led to food sources not previously available, namely the availability of large grazing animals. (Mann, 2007) • A higher quality diet shortened the duration of suckling and lactation during early hominin development, allowing an increase in reproduction rates and a decrease in the time needed between births. (Psouni, Janke & Garwicz, 2012) 2. Anatomical evidence for hominin meat-eating • Early hominin fossil remains show decrease in molar size and a more gracile structure of the jaw, suggesting less grinding in the diet and more biting and tearing.…

    • 481 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    Emerging studies suggest, “the reason for this susceptibility may be the monthly menstrual change in estrogen”…

    • 824 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    Cattle Industry Analysis

    • 1641 Words
    • 7 Pages

    In the last two centuries the beef industry has undergone many changes. From the coming of refrigerated train cars to Government regulations. As the population of the earth has grown, cattlemen have had to change their operations in order to feed the world. But as we try to feed more cattle in a smaller area, sickness spreads like wildfire if not treated with antibiotics. Cattle were first brought to the America’s in 1493 on Columbus’s second voyage.…

    • 1641 Words
    • 7 Pages
    Superior Essays
  • Improved Essays

    When you are going into the fridge to find something to eat or drink, do you think about where the food or drink comes from? I highly doubt it; if you were to think about it, I would bet most of the products in your fridge have some type of dairy cow product in it. That is why it is so important to have research on dairy cows due to how important they are for human health. Without dairy cows I believe that humans would not have thrived as long as we have due to how many products dairy cows are associated with today. German researchers recently discovered a relatively new genetic disease called HCD in 2015, and they believe that the first ever bull being a carrier of this genetic defect dates back to 1991 to a bull called Maughlin Storm (Mock,…

    • 1357 Words
    • 6 Pages
    Improved Essays
  • Decent Essays

    Cows Informative Speech

    • 283 Words
    • 2 Pages

    Today, most dairies across India produce milk processed from Jersey cows. Desi cows are apparently only to be worshiped, and so these animals can't be considered as cows; as these "holy" cows were originally bred from a wild animal named Urus. In Europe they was called Aurochs. People of Europe hunted this wild animal for it's quality and quantity of meat. But hunting this animal was getting difficult, so this wild animal was cross bred with other various animals along with the indigenous cows of India…

    • 283 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    The typical breeding season of Eastern Bluebirds typically begins when they lay their first egg around the beginning of April and their last egg towards the final days of that month (Hall, 2013). The nestlings will not start fledging until early May, although there is variation until early September. We understand from researching the process of fecal sac removal that the fecal sacs will most likely not be removed until the first few weeks after hatching. The longer days of late spring and early summer have a photoperiod average of 16-18 hours of daylight and we since we plan to conduct this experiment in April of 2017, 18 hours of daylight will be the expected May photoperiod by the time the birds hatch (Navara, 2016).The normal temperatures of May average from the lows of 14.6 ℃ to 27.7℃ (U.S.…

    • 1754 Words
    • 8 Pages
    Improved Essays
  • Improved Essays

    Cloning Angus Breed

    • 1069 Words
    • 5 Pages

    Cloning was introduced to the Angus breed. The first cow that was sucessfully cloned was Cirlce A. Lucy she was produced from the cells of a donor. How cloning works is kinda confusing. Cloning is taking the DNA from a past living cow and reproduce it again (Tom Burke).…

    • 1069 Words
    • 5 Pages
    Improved Essays