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Now showing items 161-180 of 275
Uterine regulation of preimplantation embryo development in fertility-classified heifers
(University of Missouri--Columbia, 2018)
Infertility and subfertility represent pervasive problems in domestic animals and humans, and embryonic mortality is a major factor influencing reproductive efficiency. In cattle, the majority of embryonic loss occurs ...
The role of the mammary gland during heat stress
(University of Missouri--Columbia, 2019)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Disruptive effects of climate change, such as increasing environmental temperature, have direct impacts on economic viability and efficiency of food ...
Novel alkaloid management strategies for improved beef cattle production in the fescue belt
(University of Missouri--Columbia, 2019)
Tall fescue (Schedonorus arundinaceus) is an important forage crop for agriculture in Missouri and much of the eastern United States. Tall fescue is known for hardiness and herbage accumulation, much of which is attributed ...
Evaluation and development of early pregnancy diagnosis in dairy cattle
(University of Missouri--Columbia, 2018)
Early chemical pregnancy tests for use in dairy cattle are necessary to aid in reducing the costs associated with days the animal is not pregnant. Identifying non-pregnant dairy cattle sooner would allow for efficient ...
Role of preovulatory estradiol in uterine and luteal function
(University of Missouri--Columbia, 2018)
In beef heifers, expression of estrus at fixed-time artificial insemination (FTAI) was associated with increased preovulatory circulating concentrations of estradiol (E2) and increased pregnancy rates compared to heifers ...
Effects of late gestational copper, zinc, and manganese source and inclusion in beef cattle
(University of Missouri--Columbia, 2019)
A study was conducted to determine the effects of source and inclusion of Cu, Zn, and Mn during late gestation on cow and calf mineral status, fetal growth, and offspring immune function and pre-weaning performance. Cows ...
Development and evaluation of the 7 and 7 synch protcol for enhanced control of the bovine estrous cycle among postpartum beef cows
(University of Missouri--Columbia, 2019)
Experiment 1 was designed to evaluate the effect of treatments in advance of gonadotropin-releasing hormone (GnRH; 100 [mu]g gonadorelin) administered at the start of estrus synchronization. We hypothesized that administration ...
Envelopment of a fibroblast growth factor 21 assay
(University of Missouri--Columbia, 2017)
Obesity and diabetes play a major role in many diseases prevalent in our current society. Fibroblast Growth Factor 21 (FGF21) is a recently discovered hormone that has potential for therapeutic treatment of obesity and ...
Genomic localization of a feline congenital hydrocephalus
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] An inherited congenital hydrocephalus (CH) was identified after an Oriental shorthair male with "cobby" ears was used in the development of Toygers, ...
Modification of porcine rhodopsin by CRISPR/Cas9 : towards a model for Retinitis Pigmentosa
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Retinitis Pigmentosa (RP) is a disease characterized by progressive vision loss, which affects approximately 1 in 4,000 people in the United States. ...
Paternal developmental exposure to endometriosis causes negative transgenerational impacts on male fertility
(University of Missouri--Columbia, 2018)
Endometriosis is a gynecological disease causing pain and infertility in about 15% of women worldwide. Little is known regarding male fertility following prenatal exposure to endometriosis. Our hypothesis is that developmental ...
Altered microrna expression profiles in bovine fetuses with an assisted reproduction-induced congenital overgrowth syndrome
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Assisted reproductive technologies (ART) refer to a series of fertility treatments used to conceive offspring. ART is used worldwide in humans for ...
Extracellular vesicles, lipids, and lipoproteins in early pregnant sheep
(University of Missouri--Columbia, 2021)
In sheep, pregnancy establishment encompasses conceptus elongation, implantation, and placentation. These events are regulated by factors present within the uterine luminal fluid (ULF) from the endometrial epithelium and ...
Conceptus interferon gamma is essential for pregnancy maintenance in the pig
(University of Missouri--Columbia, 2021)
Establishment and maintenance of pregnancy in the pig is a complex process that relies on adequate communication between the conceptus and maternal uterine endometrium. During the peri-implantation period, the conceptuses ...
Evaluating pig performance, carcass merit and processed pork quality when chestnuts and acorns are fed to Duroc-influenced pig genetics during late finishing
(University of Missouri--Columbia, 2019)
The objective of this study was to determine effects of feeding chestnuts and acorns on growth performance, carcass quality and further processed products of Duroc/Duroc crossbred finishing barrows. Barrows (n = 30) were ...
Regulation of fetal brain development in short versus long lived mice
(University of Missouri--Columbia, 2022)
How fetal brain development is regulated in mice with reduced life span is a primary objective of this research. Three studies were performed to investigate the fetal brain development in short and lived mice strains. The ...
Generation of a reference genome to investigate population fitness and transitional cell carcinoma occurrence in the fishing cat (Prionailurus viverrinus)
(University of Missouri--Columbia, 2022)
Many species are vulnerable or on the verge of extinction as a result of increased habitat degradation and fragmentation. Conservation genetics has attempted to apply an understanding of species genetics to reduce the risk ...
The impact of fescue toxicosis & T-Snip score on post-weaning beef cattle performance
(University of Missouri--Columbia, 2017)
It is well known that fescue toxicosis has a negative impact on cattle productivity. These studies were conducted to evaluate the effects of fescue toxicosis on post-weaning beef steers, as well as the impact of T-Snip ...
Phosphorus digestibility of corn and soybean meal (SBM) in broilers : in search of a consistent and reliable model to quantify individual ingredient contribution
(University of Missouri--Columbia, 2017)
Two experiments were conducted to determine true digestibility of Phosphorus (P) in feed ingredients commonly in commercial broiler diets. A second objective was to determine if the true digestible P values of corn and ...
Potential diagnostic methods and nutritional changes to combat bovine respiratory disease in receiving cattle
(University of Missouri--Columbia, 2017)
Bovine respiratory disease (BRD) accounts for up to 70 percent of health disruptions and $500 million in associated medical costs and production losses, thus receiving considerable attention from cattle health personnel ...