2 edition of influence of nutrition on oocyte quality and embryo yield in beef heifers found in the catalog.
influence of nutrition on oocyte quality and embryo yield in beef heifers
|Statement||by Ruth Nolan.|
|Contributions||University College Dublin. Department of Animal Science and Production.|
|The Physical Object|
|Pagination||vi, 120p. :|
|Number of Pages||120|
The magnitude of either one of the three key influences that affect the welfare (health and well-being) of livestock, these being climate, nutrition management and external and internal diseases, can impact oocyte quality and thereby influence fertility. The quality of the oocyte is a crucial component in determining reproduction awordathought.com: Gregory Sawyer, Edward Jitik Narayan. Embryo biotechnology has become one of the prominent high businesses worldwide. This technology has evolved through three major changes, that is, traditional embryo transfer (in vivo embryo production.
Influence of nutrition of mammary development in pre- and postpubertal heifers. Sejrsen K, Huber JT, Tucker HA, Akers RM. This experiment investigated the influence of plane of nutrition on mammary development in heifers. Prepubertal and postpubertal heifers were fed a ration concentrate to forage in restricted or ad libitum awordathought.com by: Maternal Diet, Oocyte Nutrition and Metabolism, and Offspring Health. Authors; Authors and affiliations Wettemann RP, Welty SD, Vizcarra J, Spicer LJ. Nutritionally induced anovulation in beef Heifers: ovarian and endocrine function during realimentation and resumption of ovulation. Impact of nutrition on oocyte quality: cumulative Cited by: 6.
Embryo transfer technology may also be implemented in a cattle breeding program for other reasons. Embryo transfer may be used to perform a progeny test on females in order to determine whether or not they are carriers of recessive genetic defects for which a DNA test is unavailable. Embryo transfer may be used to rescue the genetics of a. management program in an efficient beef cow production system.!The most critical factor determining the success of any heifer development program is nutrition. Most efforts are concentrated in providing the right amount and quality of feed to achieve gains from to lb/day, so heifers can reach 65% of their mature BW by the day of breeding.
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There is insufficient data on the direct effect of dairy cattle nutrition on bovine embryo quality and development during HS. However, there are several nutritional strategies that may be implemented to mitigate the effect of HS on maternal energy balance and thus, embryo quality and awordathought.com by: 1.
Nov 27, · Much of our understanding of the relationships between nutrition, oocyte quality and blastocyst yield comes from studies on the causes of reduced fertility in the high-yielding dairy cow. In such animals, the excessive negative energy balance of early lactation coincides with a critical window in oocyte awordathought.com by: Aug 01, · These in vitro maturation models, based on in vivo observations, suggest that a period of NEB may hamper the fertility of high-yielding dairy cows through increased NEFA and decreased glucose concentrations in the FF directly affecting oocyte quality.
In addition to oocyte quality, these results also demonstrate that embryo quality is reduced Cited by: ELSEVIER INFLUENCE OF SOMATOTROPIN AND NUTRITION ON BOVINE OOCYTE RETRIEVAL AND IN VITRO DEVELOPMENT M. Tripp, J. Ju, T. Hoagland, J. Riesen, X. Yang and S. Zinn Department of Animal Science, University of Connecticut, Storrs, CT Received for publication: ~~~~ 8, 1 ggg Accepted: November 19, ABSTRACT The objective of this study was Cited by: Dietary carbohydrates and amino acids influence oocyte quality in dairy heifers.
in beef heifers. Anim. greater numbers of viable oocytes and greater in vitro embryo yield than Bos taurus. Influence of post-insemination nutrition on embryonic development in beef heifers Article in Theriogenology 90 · November with 86 Reads How we measure 'reads'.
Nov 01, · The major new findings of the present study are as follows: 1) The effects of level of feeding on oocyte quality are dependent on the initial BCS of the heifer, 2) the effects of high levels of feeding on oocyte quality over time are cumulative, and 3) high levels of feeding to moderately fat heifers can lead to hyperinsulinemia and impaired Cited by: influence of management factors on reproduction in beef cattle: 1.
effects of melengestrol acetate and growth promoting implants on oocyte quality and subsequent in vitro embryo development 2. exposure of prepubertal beef bulls to cycling females to enhance sexual development by natalie ann miller b.s., the ohio state university, a thesis.
The objective of the present experiment was to determine whether increasing plasma insulin by different nutritional regimes affects oocyte quality. Holstein dairy heifers (eight per treatment) were assigned, using a two times two factorial design, to diets containing either low or high dietary leucine and either low or high dietary starch.
Each heifer underwent six sessions of ovum pick-up Cited by: dietary energy did not interfere with oocyte numbers and quality, but the M diet reduced in vitro embryo production in Bos indicus cows after 60 d of treatment.
Finally, Bos indicus cows had greater oocyte quality, greater numbers of viable oocytes and greater in vitro embryo yield than Bos taurus.
early developing embryo are probably minimal compared to the energy needs for maintenance and lactation. However, the metabolic and endocrine cues associated with negative energy balance (NEB) impair resumption of ovulatory cycles, oocyte quality and embryo quality, and establishment and maintenance of pregnancy in dairy cattle.
Ovarian Influence on Pregnancy Success: It is well recognized that gamete quality, and in particular oocyte quality, is an important determinant of successful embryo development.
Indeed, infertility and poor embryo development ensues when oocyte maturation is compromised. Abstract. Many factors influence the efficiency of the in vitro embryo production technology in cattle but the most important are the physiological conditions of the donor and the culture protocols for oocyte maturation and fertilization and for embryo culture from zygote to blastocyst.
Therefore, general factors such as age, body conditions and herd management play a pivotal role together Cited by: 7.
Improving oocyte quality in cows and heifers - What have we learned so far. Blondin1,3, C. Vigneault1, A.L. Nivet, the blastocyst stage and yield a viable and healthy progeny. The main follicular parameters linked to oocyte fertilization (IVF) and in vitro embryo production have allowed both the quick propagation of embryos from.
Influence of post-insemination nutrition on embryonic development in beef heifers Author: Kruse, S.G., There were no treatment by Rep or treatment by location interactions for any embryo parameter evaluated, thus all data were pooled. Embryo stage and quality were improved (P Cited by: 5.
NUTRITION AND EMBRYO QUALITY IN CATTLEQUALITY IN CATTLE Effect of plane of nutrition on oocyte quality and developmental competence in vitro Plane of nutrition1 Low High P Reference Heifers 17 20 3Mollo et al.
() Embryo/Ova numberEmbryo/Ova, number 10 Effects of nutrition on reproduction- A review Yugal It appears that exposure to high levels of ammonia or urea may impair maturation of oocyte and subsequent fertilization or maturation of developing embryos.
not all studies have observed negative effects of elevated BUN concentrations on embryo quality or pregnancy rates [24 Cited by: Apr 28, · Nutrition and maternal metabolic health in relation to oocyte and embryo quality: critical views on what we learned from the dairy cow model.
Reproduction, Fertility Cited by: Factors that affect the in vitro production of bovine embryos: A review hormones on the follicular development and the quality of the cumulus oocyte complex (COC).
The bovine cattle, in vitro embryo production, in vitro oocyte maturation ¶ Para citar este artículo: Pfeifer LFM, Schneider A, Corrêa MN.
Impact of Nutrition on Dairy Cattle Reproduction. José Eduardo P. Santos, Ph.D. Selection of dairy cattle for milk yield has linked the endocrine and metabolic oocyte and embryo quality, and establishment and maintenance of pregnancy in dairy cattle. Embryo quality is also of utmost importance in the survival of the freezing and thawing stress.
They must be on a proper plane of nutrition (body score 6 for beef cows and dairy body con dition score 3 to 4). These cows also must be on a sound herd health program.Impact of nutrition on oocyte quality and fertility in cattle much less is known about the direct effects of nutrition on the follicle-enclosed oocyte, and the consequences that this might have for post-fertilization development, so there is an urgent need to conduct thoughtfully designed whole animal studies that adequately characterize.Oocytes in cattle are formed during embryogenesis and develop within individual follicles in the cortex of the ovary.
Dormant primordial follicles become active and undergo progressive development at regular intervals commencing during the late fetal stage and continuing throughout adulthood. Once.