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Dairy Science

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2006

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Humanized Monoclonal Antibody Against West Nile Virus Envelope Protein Administered After Neuronal Infection Protects Against Lethal Encephalitis In Hamsters, John D. Morrey, V. Siddharthan, Aaron L. Olsen, G. Y. Roper, H. Wang, Thomas J. Baldwin, S. Koenig, S. Johnson, J. L. Nordstrom, M. S. Diamond Jan 2006

Humanized Monoclonal Antibody Against West Nile Virus Envelope Protein Administered After Neuronal Infection Protects Against Lethal Encephalitis In Hamsters, John D. Morrey, V. Siddharthan, Aaron L. Olsen, G. Y. Roper, H. Wang, Thomas J. Baldwin, S. Koenig, S. Johnson, J. L. Nordstrom, M. S. Diamond

Animal, Dairy, and Veterinary Science Faculty Publications

Humans infected with West Nile virus (WNV) may clinically present with symptoms that are suggestive of neurological infection. Nearly all treatments of WNV disease have been effective in animal models only if administered before or soon after viral challenge. Here, we evaluated whether a potent neutralizing anti-WNV humanized monoclonal antibody (MAb), hE16, could improve the course of disease in a hamster model when administered after the virus had infected neurons in the brain. Five days after viral injection, WNV was detected in the brains of hamsters by cytopathic assay, quantitative reverse-transcription polymerase chain reaction, and immunohistochemical staining of WNV envelope …

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Milk Quality As A Function Of Temperature-Cycled, Reduced-Fat Milk Stored In Various Size Containers (2006), L.F. Julstron, Karen A. Schmidt Jan 2006

Milk Quality As A Function Of Temperature-Cycled, Reduced-Fat Milk Stored In Various Size Containers (2006), L.F. Julstron, Karen A. Schmidt

Kansas Agricultural Experiment Station Research Reports

Packaged, reduced-fat milk was subjected to a 20 min/day temperature cycle during a 7-day refrigeration period to determine the effect on milk quality. Temperature cycling did not affect the compositional or microbial counts in reduced-fat milk stored in various package sizes. Analysis of headspace compounds during the 7 days of storage, however, showed that benzaldehyde, 2-butanone, 2-heptanone, hexanal, and octanal concentrations significantly changed, indicating that milk flavor was altered. Concentration of heptanal, a compound associated with lipid oxidation, was higher in milk packaged in half-gallon and 1-gallon containers, compared; Dairy Day, 2006, Kansas State University, Manhattan, KS, 2006;

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Consumptive Water Usage Of Evaporative Pads (2006), C. Schmidt, John F. Smith, Joseph P. Harner, Michael J. Brouk Jan 2006

Consumptive Water Usage Of Evaporative Pads (2006), C. Schmidt, John F. Smith, Joseph P. Harner, Michael J. Brouk

Kansas Agricultural Experiment Station Research Reports

Consumptive water usage by evaporative pads was measured during 7 days of a 3-week period at a Kansas (KS) dairy and a 2-day pe-riod at a North Dakota (ND) dairy. Water me-ters were installed between the water hydrants, and evaporative pads at each dairy, and were monitored. Data were recorded every 30 min-utes during 5 hr at the KS site and every 15 minutes during 1 to 2.5 hr at the ND site. Ra-tio of pad area to cow equaled 4.8 and 4.5 ft2 per cow at the KS and ND sites, respectively. Airflow rates through the pads were 1.2, …

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Ovulation Potential Of Human Chorionic Gonadotropin Versus Gnrh (2006), B.S. Buttrey, M.G. Burns, Jeffrey S. Stevenson Jan 2006

Ovulation Potential Of Human Chorionic Gonadotropin Versus Gnrh (2006), B.S. Buttrey, M.G. Burns, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Experiments have shown human chorionic gonadotropin (hCG) to be more effective than GnRH as a means to induce ovulation of folli-cles. Dosages used, however, have differed greatly among experiments. A study was per-formed to determine the minimum effective dose of hCG needed to induce ovulation of ovarian follicles in dairy cows. Ovaries of Holstein cows were mapped by using transrec-tal ultrasonography 7 days before a bi-weekly pregnancy diagnosis. Cows were assigned randomly to treatments of saline, 100 μg of GnRH (2 mL of Fertagyl, Intervet, Inc., Mills-boro, NJ), or 500, 1000, 2000, or 3000 IU of hCG (0.5, 1, 2, …

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Evaluación De La Producción Y Calidad De La Leche En Vacas Holstein De Primer Parto Suplementadas Con Ensilaje De Papa, Juan Camilo Ruiz Ortiz Jan 2006

Evaluación De La Producción Y Calidad De La Leche En Vacas Holstein De Primer Parto Suplementadas Con Ensilaje De Papa, Juan Camilo Ruiz Ortiz

Zootecnia

Periódicamente en épocas de noviembre y diciembre se presenta en diferentes regiones del país una sobreoferta de papa en el mercado lo cual conlleva a grandes pérdidas al agricultor, desde el punto de vista financiero y sanitario por el abandono del producto a la intemperie. Teniendo en cuenta que los productores de papa en su mayoría tienen como otras fuentes de ingresos a nivel pecuario la producción de leche, la cual se ve afectada por que los forrajes utilizados presentan épocas de escasez generando menores niveles de producción y a su vez altos costos, cuando se suplementan con alimentos comerciales, …

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Evaluación De Aflatoxinas En Suplementos Para Vacas Lecheras En La Sabana De Bogotá, Y Su Relación Con Aflatoxina M1 En Leche, María Paula Vásquez Santa Jan 2006

Evaluación De Aflatoxinas En Suplementos Para Vacas Lecheras En La Sabana De Bogotá, Y Su Relación Con Aflatoxina M1 En Leche, María Paula Vásquez Santa

Zootecnia

Con el presente trabajo se evaluó la presencia de aflatoxinas B1, B2, G1 y G2 en suplementos del ganado lechero en la Sabana de Bogotá y la presencia de aflatoxina M1 en leche, así mismo se determinó el nivel de asociación que existe entre la ingesta de alimentos contaminados con aflatoxina B1 y el nivel de aflatoxina M1 residual en leche. Las micotoxinas constituyen un grupo de compuestos químicos tóxicos producidos por algunas cepas de hongos cuando crecen bajo ciertas condiciones favorables en una vasta variedad de substratos diferentes. Las aflatoxinas son un grupo de metabolitos heterocíclicos estrechamente relacionados entre …

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Evaluación De La Adaptación, Comportamiento Y Efecto En La Pradera De La Acacia Negra (Acacia Decurrens), De La Acacia Japonesa (Acacia Melanoxylon), Y Del Aliso (Alnus Acuminata), Como Cerca Viva En Un Sistema De Producción De Ganado De Leche En El Trópico Alto Colombiano, Luz Angela Florez Muriel, John Alexander Umaña Arboleda Jan 2006

Evaluación De La Adaptación, Comportamiento Y Efecto En La Pradera De La Acacia Negra (Acacia Decurrens), De La Acacia Japonesa (Acacia Melanoxylon), Y Del Aliso (Alnus Acuminata), Como Cerca Viva En Un Sistema De Producción De Ganado De Leche En El Trópico Alto Colombiano, Luz Angela Florez Muriel, John Alexander Umaña Arboleda

Zootecnia

Se implementó un sistema silvopastoril de cerca viva en la finca Santa Maria en el Municipio de Sopo; para el cual se utilizaron 3 especies, Aliso, Acacia decurrens y Acacia melanoxylon distribuidos en 1536 metros lineales, se utilizo un diseño de bloques al azar y 4 replicas con 7 arreglos, T1 (testigo), T2 (aliso), T3 (Acacia decurrens), T4 (Acacia melanoxylon), T5 (Aliso + Acacia decurrens), T6 (Aliso + Acacia melanoxylon) y T7 (Acacia decurrens + Acacia melanoxylon), se evaluaron el crecimiento y desarrollo de los árboles, medidas dasométricas; presencia e incidencia de plagas y enfermedades; Cambios físico-químicos en el suelo, …

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Evaluación Del Comportamiento Productivo, Reproductivo Y Composición De La Leche En Vacas Normando Puras Y En Diferentes Porcentajes De Sangre, En La Finca Chuguacá, Municipio De San Francisco, Juan Fernando Góngora Álvarez Jan 2006

Evaluación Del Comportamiento Productivo, Reproductivo Y Composición De La Leche En Vacas Normando Puras Y En Diferentes Porcentajes De Sangre, En La Finca Chuguacá, Municipio De San Francisco, Juan Fernando Góngora Álvarez

Zootecnia

El propósito de este estudio fue el de comparar el comportamiento productivo, reproductivo y composición de la leche en vacas Normando puras y en diferentes porcentajes de sangre, Bajo un esquema de lechería especializada. Para la evaluación del comportamiento productivo reproductivo se utilizó los registros de 106 lactancias (vacas de primer a mayores de tres partos) desarrollados entre 1990 y el 2005 en la finca Chuguacá. Para la evaluación de la composición de la leche se utilizaron 60 vacas con un promedio de 197 días de lactancia, Las vacas 7/8 de sangre Normando tuvo un comportamiento superior sobre las vacas …

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Respuesta A La Suplementación De Terneros Lactantes Del Sistema De Doble Propósito En El Norte Del Cesar, Wilson Andrés Solano Gracia Jan 2006

Respuesta A La Suplementación De Terneros Lactantes Del Sistema De Doble Propósito En El Norte Del Cesar, Wilson Andrés Solano Gracia

Zootecnia

En los sistemas ganaderos de doble propósito en el Valle del Cesar, durante la fase de lactancia los terneros presentan baja eficiencia productiva, la cual se expresa en bajas ganancias de peso, siendo el promedio de peso al destete de 130 y 115 kg de peso vivo en machos y hembras, respectivamente. El presente trabajo se realizo en la finca “Moravia”, localizada en el municipio de Valledupar (Cesar), con el objetivo de evaluar el efecto de la suplementación sobre la ganancia de peso de terneros lactantes. Dieciocho terneros del sistema doble propósito de distinto cruce racial, fueron distribuidos bajo un …

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Effects Of Four Soybean Meal Products On Lactational Performance Of Dairy Cows (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, John E. Shirley Jan 2006

Effects Of Four Soybean Meal Products On Lactational Performance Of Dairy Cows (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, John E. Shirley

Kansas Agricultural Experiment Station Research Reports

Thirty-two multiparous Holstein cows (152 days in milk, producing 90 lb/day of milk at the beginning of the study) were used in a 4 x 4 Latin square design with 28-day periods to investigate cow responsiveness to supple-mental ruminally undegraded protein from 4 soybean meal products. The 4 products were: solvent soybean meal (SSBM), expeller soy-bean meal (ESBM), lignosulfonate-treated soybean meal (LSBM), and SSBM treated with 0.05% baker's yeast and toasted at 212ºF (YSBM). Diets were formulated by substitut-ing all SSBM and part of ground corn with YSBM, ESBM, or LSBM to yield isonitroge-nous diets. Diets were formulated to provide …

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Evaluation Of Ruminal Degradability And Lysine Bioavailability Of Four Soybean Meal Products (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, R. Scott Beyer Jan 2006

Evaluation Of Ruminal Degradability And Lysine Bioavailability Of Four Soybean Meal Products (2006), M.S. Awawdeh, Evan C. Titgemeyer, James S. Drouillard, R. Scott Beyer

Kansas Agricultural Experiment Station Research Reports

Evaluations of four soybean meal (SBM) products were conducted. The products were: solvent SBM (SSBM), expeller SBM (ESBM), lignosulfonate-treated SBM (LSBM), and SSBM treated with 0.05% Baker's yeast and toasted at 212ºF (YSBM). In situ ruminal degradations of YSBM and LSBM were slower than those of SSBM or ESBM; thus, ruminally undegraded protein contents of YSBM and LSBM were greater than those of SSBM or ESBM. The ruminally undegraded protein of all SBM products had similar small intestine digestibility when as-sessed by susceptibility to enzymatic digestion in vitro. Available lysine contents, estimated chemically or using standard chick growth assay, were …

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Evaluate The Efficacy Of "Heat Stress Audits" Of Your Cooling System Through Core Body Temperature (2006), John F. Smith, M. Vanbaale, C. Jamison, R. Rodriguez Jan 2006

Evaluate The Efficacy Of "Heat Stress Audits" Of Your Cooling System Through Core Body Temperature (2006), John F. Smith, M. Vanbaale, C. Jamison, R. Rodriguez

Kansas Agricultural Experiment Station Research Reports

A project to evaluate the degree of heat stress in individual dairies was carried out in the summer of 2005. The object of this project was to develop a method to evaluate or audit how effective an individual dairy is in manag-ing heat stress. Approximately 45 herds in 20 different states were audited for the degree of heat stress cows experienced during a 72-hr period. Dairies were selected based on geog-raphy, climate, and facility design. Lactating cows 40 to 100 days in milk (DIM) and dry cows within 30 days of calving were evalu-ated. Vaginal temperatures of 8 cows located …

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Responses Of Lactating Holstein Cows To Increasing Amounts Of Wet Corn Gluten Feed (2006), John F. Smith, K. Grigsby, Michael J. Brouk Jan 2006

Responses Of Lactating Holstein Cows To Increasing Amounts Of Wet Corn Gluten Feed (2006), John F. Smith, K. Grigsby, Michael J. Brouk

Kansas Agricultural Experiment Station Research Reports

Forty lactating Holstein cows were allocated into groups of 5 cows each and assigned to 8 pens containing 10 freestalls each. Each group contained 3 heifers and 2 multiparous cows. Groups were balanced by milk production and days in milk. Diets were formulated to contain none (control), 12, 24, or 36% wet corn gluten feed (WCGF) on a dry matter (DM) basis. Increasing amounts of WCGF and heat-treated expeller soybean meal replaced a portion of the corn silage, alfalfa hay, corn grain, soybean meal, and soybean hulls of the control diet to maintain similar concentrations of crude protein (CP), ruminally …

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Delaying Injection Of Prostaglandin F2Α In An Ovsynch Protocol (2006), M.A. Portaluppi, D.E. Tenhouse, Jeffrey S. Stevenson Jan 2006

Delaying Injection Of Prostaglandin F2Α In An Ovsynch Protocol (2006), M.A. Portaluppi, D.E. Tenhouse, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine whether delaying the PGF2αinjection by 24 or 48 hr after the first GnRH injection in an Ovsynch protocol (from a standard 7 days) altered ovar-ian characteristics in lactating dairy cows. Es-trous cycles were synchronized in 36 Hol-steins after removal of a progesterone-releasing controlled internal drug release (CIDR) insert and injection of PGF2α. On day 6 of the estrous cycle, cows were administered 100 μg of GnRH (81 ± 2 days postpartum) and assigned randomly to receive a treatment in-jection of PGF2α7, 8, or 9 days later. Timed artificial insemination (TAI) was performed at 48 hr …

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Resynchronization Of Ovulation And Conception In Nonpregnant Dairy Cows And Heifers (2006), M.A. Portaluppi, D.E. Tenhouse, Jeffrey S. Stevenson Jan 2006

Resynchronization Of Ovulation And Conception In Nonpregnant Dairy Cows And Heifers (2006), M.A. Portaluppi, D.E. Tenhouse, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Our objectives were to determine various factors influencing upfront single and multiple ovulation in response to GnRH in a timed arti-ficial insemination (TAI) protocol and subse-quent fertility after altering timing of the sec-ond GnRH injection and AI relative to PGF2αinjection. Replacement heifers (n = 86) and 613 lactating cows previously inseminated were diagnosed not pregnant at biweekly in-tervals to form 77 breeding clusters spanning 36 months. At not-pregnant diagnosis (day 0), females received 100 μg of GnRH, and they received 25 mg of PGF2α7 days later. Females in 2 treatments received GnRH 48 hr (G48) after PGF2αinjection and TAI at …

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Ovarian Responses And Conception Rates In Response To Gnrh, Hcg, And Progesterone (2006), M.A. Portaluppi, D.E. Tenhouse, A. Lloyd, D.R. Eborn Jan 2006

Ovarian Responses And Conception Rates In Response To Gnrh, Hcg, And Progesterone (2006), M.A. Portaluppi, D.E. Tenhouse, A. Lloyd, D.R. Eborn

Kansas Agricultural Experiment Station Research Reports

We hypothesized that increasing concentrations of progesterone after artificial insemination (AI) would increase fertility. Our objective was to assess changes in ovarian structures, incidence of ovulation, and change in serum progesterone in response to GnRH, human chorionic gonadotropin (hCG), or exogenous progesterone (controlled internal drug release; CIDR insert) treatment, beginning 4 to 9 days after AI (d 0) and again 7 days later (Exp. 1). Blood was collected from 753 cows in 3 herds on days 0 and 7. Ovaries of 162 cows in 1 herd were scanned and mapped to confirm the presence a corpus luteum (CL), and cows …

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A Novel Yogurt Product With Lactobacillus Acidophilus, Senthil Ganesh Jan 2006

A Novel Yogurt Product With Lactobacillus Acidophilus, Senthil Ganesh

LSU Master's Theses

Health benefits of Lactobacillus acidophilus include providing immune support for infections or cancer, providing a healthy replacement of good bacteria in the intestinal tract following antibiotic therapy, reducing occurrence of diarrhea in humans, aiding in lowering cholesterol and improving the symptoms of lactose intolerance. Consumer demand exists for new dairy products. There are several types of yogurt like stir curd, set curd and drinkable yogurt and they all need to be refrigerated. Moreover there are very few dairy products that can be stored at room temperature and not many dairy foods are finger foods. A novel yogurt product like a …

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