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Effects of essential oils on the performance, health, and feeding behavior of growing cattle
(University of Missouri--Columbia, 2021)
= 267 [plus or minus] 2.6 kg) were obtained from 3 different sources and assigned risk groups based on distance traveled, previous health management, and incidence of disease. Pen fed EO tended (P = 0.09) to have a greater DMI than control. After 56 days...
Effect of high peroxide value fats on performance of broilers in normal and immune challenged states
(University of Missouri--Columbia, 2009)
A series of trials were conducted in order to determine the effects of high peroxide value fats on performance of broilers in normal and immune challenged states from 0-49 days of age. In the first experiment, birds were fed one of six diets...
The effect of reduced nocturnal temperatures on the performance of broiler chicks and hen turkey poults from 0 to 21 days of age
(University of Missouri--Columbia, 2018)
to determine if birds benefit from periods of warmer and cooler environmental temperatures during different parts of the day (Waibel and Macleod, 1994). One management strategy that has not been researched in poultry, but has been studied in the swine model...
Exploration of fecal microbial transfer and the competitive exclusion concept in broilers as a possible alternative to antibiotic growth promoters
(University of Missouri--Columbia, 2021)
Four studies were conducted to explore the effects of early life Fecal Microbiota Transfer (FMT) from healthy feed efficient finished broilers into day-old broiler chicks on growth performance indices, changes and or differences in microbiome...
Role of preovulatory estradiol in uterine and luteal function
(University of Missouri--Columbia, 2018)
in estrus (Richardson et al., 2016). We hypothesized that increased preovulatory concentrations of estradiol would enhance conceptus elongation in beef heifers. To test the preceding hypothesis conceptus elongation on day 16 (day 0 = GnRH-induced ovulation...
Influence of subclinical hypocalcemia on plasma biochemical parameters, liver histologic changes, and common postpartum diseases in dairy cows
(University of Missouri--Columbia, 2011)
Holstein cows were assigned to one of two groups 1) normocalcemic (n=49; ionized calcium [iCa] ! 1.0 mmol/L) or 2) hypocalcemic (n=51; [iCa] [less than 1.0 mmol/L) based on whole blood [iCa] on the day of calving. Blood samples were collected from all cows...
Investigation of mechanisms associated with establishment and maintenance of pregnancy in beef cattle
(University of Missouri--Columbia, 2020)
decrease pregnancy loss in postpartum beef cows. The 7-day CO-Synch + CIDR(R) protocol was used to synchronize estrus/ovulation in 326 cows. The protocol included administration of GnRH (GnRH1) on day -9, treatment with exogenous progesterone via a CIDR...
Comparison of long-term progestin-based protocols to synchronize estrus in beef heifers
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Experiment 1 evaluated two long-term progestin-based and controlled internal drug release estrus synchronization protocols to determine their potential ...
Growth, performance and quality attributes of steers supplemented with high oleic soybean oil
(University of Missouri--Columbia, 2019)
Growing concerns with saturated fatty acids on human health has led to research being done to reduce saturated fatty acid levels in animal tissues. The objective of this study was to evaluate the effect of high oleic soybean oil on the performance...
Genetic and nutritional effects on reproduction in lactating dairy cows
(University of Missouri--Columbia, 2020)
performance observed in high genetic merit lactating dairy cows compared to cows of an average genetic merit managed in a standardised environment. The studies specifically focused on characterising uterine health, ovarian activity, circulating concentrations...
Developmental exposure to bisphenol a (BPA) and ethinyl estradiol (EE) and effects on F1 parental care and F2 pup parameters in California mice (Peromyscus californicus)
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Environmental exposure during the perinatal period can promote health and disease in offspring, otherwise coined developmental origins of health and disease (DOHaD). Endocrine...
Efforts to identify large offspring syndrome during pregnancy through ultrasonography and maternal blood transcriptome analyses
(University of Missouri--Columbia, 2021)
to death of the dam and/or calf and can lead to financial losses to producers. Currently, no method exists that can be used to identify LOS during pregnancy. The goal of this study is to investigate if ultrasonographic measurements at day 55 of gestation...
Evaluation of the 7 and 7 synch protocol for control of the estrous cycle among beef cows prior to fixed-time artificial insemination with sex-sorted or conventional semen
(University of Missouri--Columbia, 2021)
(CIDR; 1.38 g progesterone) on Day 0, gonadotropin-releasing hormone (GnRH; 100 [mu]g gonadorelin) on Day 7, and PG coincident with CIDR removal on Day 14. Estrus detection aids (EstrotectTM) were applied to all cows on Day 14, and activation status...
Interaction of metsulfuron and nitrogen fertilizer in Tall Fescue forage systems
(University of Missouri--Columbia, 2022)
resources and time. It has been reported to cost $250 to $400 per acre to replace tall fescue, with an additional 18 months of no grazing while new species emerge. Most current research efforts have focused on managing tall fescue to reduce toxicity risk...
Improving viability of immunodeficient RAG2-/- pigs by non-specific porcine antibody administration
(University of Missouri--Columbia, 2020)
was reported in our immunocompetent wildtype pigs as remaining present in vivo over 0.05 [mu]g/mL for 10 days yielding a half-life of approximately 3.5 days, even though IgG has been described to have a half-life of 21 days....
Evaluation of the efficacy of high levels of microbial phytase in broilers
(University of Missouri--Columbia, 2006)
(hatch to 21 days), high levels of dietary phytase improved BWG above the NRC and positive control diets (EXP 1 and 3). However, as broilers reached market weight there were no differences (P [greater than] 0.05) in BWG. Results of this research indicate...
Effects of conjugated linoleic acid on tissue lipid composition and bone remodeling in an ovariectomized aged rat model
(University of Missouri--Columbia, 2012)
not be enough CLA for this enhanced anti-inflammatory response. In conclusion, the geriatric postmenopausal model that we created may be beneficial in future osteoporosis research....
Self-selection of animal by-product by poultry through utilization of choice feeding
(University of Missouri--Columbia, 2020)
"The emergence of animal welfare provisions by humane societies has limited management practices. One of these provisions is the animal's freedom to express normal behavior. Animal by-product feeding to livestock and poultry ...
Effects of Artemisia afra and Artemisia absinthium on fertility of male mice exposed to increased ambient temperatures for 24 hours
(University of Missouri--Columbia, 2010)
Males exposed to elevated temperatures display a decrease in reproductive performance resulting in decreased profit for producers. The use of herbs to alleviate the effects of heat in tropical countries has been documented ...
Ablation of conceptus PTGS2 provides a new understanding of early pregnancy events in the pig
(University of Missouri--Columbia, 2019)
at day 7. Total PG was substantially lower (P < 0.0001) in the culture media of PTGS2[-/-] compared to PTGS2[+/+] blastocysts. PTGS2 was detectable by immunolocalization in PTGS2[+/+] but absent in PTGS2[-/-] blastocysts. Next, PTGS2[+/+] and PTGS2...