Search
Now showing items 61-80 of 275
The effect of early pregnancy and lactation on the growth of young breeding animals
(University of Missouri--Columbia, 1916)
The purpose of the investigation described in this thesis was to determine the effects of early breeding in swine. If breeding immature animals results in evil consequences, these bad results should be observed in one or ...
Effects of dietary melamine and cyanuric acid in young Pekin ducks and weanling pigs
(University of Missouri--Columbia, 2012)
In 2007, melamine (MEL) and cyanuric acid (CYA) were added to feed ingredients in an attempt to artificially increase their crude protein and thus their momentary value. However, once ingested MEL and CYA can form insoluble ...
Mitochondrial complex I protein is related to residual feed intake in beef cattle
(University of Missouri--Columbia, 2011)
Residual feed intake (RFI) is a calculated using DMI as dependent variable and metabolic body weight (BW 0.75) and ADG as independent variable. Mitochondria complex I (mitochondrial NADH:ubiquinone oxidoreductase) is one ...
Cattle production : the cost in Missouri of producing a steer ready for the feed lot
(University of Missouri--Columbia, 1906)
If one desires to know the cost of making a locomotive he would not think of going to anyone other than a locomotive manufacturer. If one wishes to know the cost of constructing a building he goes to a contractor. Desiring ...
Age as a factor in animal breeding
(University of Missouri--Columbia, 1918)
The experiment furnishing the basis for this discussion was begun in 1909 by Director F.B. Mumford and has since been continued under his general direction. Swine were used in the experiment since they probably lend ...
Comparison of long-term CIDR-based protocols to synchronize estrus in postpartum beef cows
(University of Missouri--Columbia, 2011)
Estrus synchronization and artificial insemination are two of the most important management practices available to producers to increase reproductive performance in a beef cow-calf operation. Unfortunately, a small number ...
Corn preparation for fattening lambs
(University of Missouri--Columbia, 1916)
The question of the advisability of grinding grain for farm animals is one which is causing a great deal of discussion at the present time. Theoretically it would be expected that any preparation of a feed, for any class ...
Size-dependent acquisition of global DNA methylation in oocytes is altered by hormonal stimulation
(University of Missouri--Columbia, 2011)
Administration of exogenous gonadotropins (superovulation) is used to increase the number of mature oocytes to circumvent the inefficiencies of the subsequent assisted reproductive technologies procedures. Some evidence ...
Function and gene expression of circulating neutrophils in dairy cows : impact of micronutrient supplementation
(University of Missouri--Columbia, 2012)
Three experiments were conducted to investigate the mechanisms of neutrophil dysfunction during the periparturient period and test potential nutritional strategies to prevent the immune-alteration typical of this time. The ...
GGTA-1 targeting efficiency with a xenograft transgene
(University of Missouri--Columbia, 2012)
Gene targeting by homologous recombination was utilized to target the GGTA-1 locus. Two independent enrichment strategies were evaluated to determine if targeting efficiencies at the GGTA-1 locus could be improved. The ...
Impact of zymannase on growth performance, carcass characteristics, fat quality and processed meats in finishing barrow fed 30% dried distiller's grains with solubles
(University of Missouri--Columbia, 2014)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] As ethanol production continues to increase, so does the use of dried distiller's grains with solubles (DDGS) in swine diets. The effects of high ...
Comparison of long-term CIDR-based protocols to synchronize estrus and ovulation prior to fixed-time artificial insemination in postpartum beef cows
(University of Missouri--Columbia, 2012)
This experiment compared two long-term CIDR-based protocols to synchronize estrus and ovulation prior to fixed-time AI (FTAI) in postpartum beef cows. Cows assigned to the 14-19 d CIDR-PG protocol (n = 196) received CIDR ...
Modeling EAA requirement and developing low fishmeal diet for yellow perch
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Overall, my dissertation research sought to enhance production of yellow perch by developing a low cost, complete diet for juvenile yellow perch by ...
Characterization of interleukin-1 beta 2, a novel interleukin-1 expressed by the early pig conceptus during establishment of pregnancy
(University of Missouri--Columbia, 2014)
It is essential that the early mammalian embryo attaches to the uterus or implants to survive. Most embryonic mortality is associated with complications during this process resulting in a loss of 25-60% of embryos or ...
Behavioral and physiological phenotype of the viable yellow mouse (AVY/a)
(University of Missouri--Columbia, 2013)
Epigenetics is the study of how heritable phenotypes are transmitted without changes being made to the DNA sequence. One of the best characterized animal models for epigenetics is the viable yellow (Avy) mouse. These animals ...
Evaluation of long-term CIDR-based estrus synchronization protocols in primiparous two-year-old beef cows
(University of Missouri--Columbia, 2015)
Reproductive management of two-year-old beef cows presents a unique challenge in managing a beef herd, since this age group of females typically experiences the highest incidence of reproductive failure. Strategic management ...
Timing GnRH administration with split-time artificial insemination following administration of CIDRbased protocols to synchronize estrus and ovulation in beef heifers and cows
(University of Missouri--Columbia, 2015)
Split-time artificial insemination (STAI) was developed as a novel breeding strategy that delays insemination by 20 to 24 h for cows and heifers that fail to express estrus prior to a predetermined fixed time. Split-time ...
Comparison of rumen microbe taxa among wild and domestic ruminants
(University of Missouri--Columbia, 2015)
Microbes that inhabit the rumen provide a diverse set of enzymes that degrade ingested plant material. Without microbes, ruminants could not survive. Our research has focused on identifying microbial taxa associated with ...
Analysis of transcript abundance of uterine genes after application of bovine pregnancy associated glycoproteins to endometrial explants
(University of Missouri--Columbia, 2015)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Pregnancy-associated glycoproteins (PAGs) belong to the aspartic protease family and are expressed exclusively by trophoblasts of even-toed ungulates. ...
The effects of aging and fsh on the epigenome of the mouse oocyte
(University of Missouri--Columbia, 2015)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] With aging, females experience a natural decline in their reproductive success, partly due to a decline in the quality of the oocyte (ovum/egg). In ...