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PubMed2006

Effect of creep feed supplementation and season on intake, microbial protein synthesis and efficiency, ruminal fermentation, digestion, and performance in nursing calves grazing native range in southeastern North Dakota.

Nine ruminally and duodenally cannulated (172 +/- 23 kg of initial BW; Exp. 1) and 16 intact (153 +/- 28 kg of initial BW; Exp. 2) crossbred nursing steer calves were used to evaluate the effects of creep feed supplementation and advancing season on intake, digestion, microbial efficiency, ruminal fermentation, and performance while grazing native rangeland. Treatments in both experiments were no supplement or supplement fed at 0.45% of BW (DM basis) daily. Supplement consisted of 55% wheat middlings, 38.67% soyhulls, 5% molasses, and 1.33% limestone. Three 15-d collection periods occurred in June, July, and August. In Exp. 1, ruminal evacuations were performed and masticate samples were collected for diet quality analysis on d 1. Duodenal and fecal samples were collected from cannulated calves on d 7 to 12 at 0, 4, 8, and 12 h after supplementation. Ruminal fluid was drawn on d 9 and used as the inoculate for in vitro digestibility. On d 11, ruminal fluid was collected, and the pH was recorded at -1, 1, 2, 4, 8, 12, and 24 h postsupplementation. In Exp. 1 and 2, milk intake was estimated using weigh-suckle-weigh on d 15. Steers in Exp. 2 were fitted with fecal bags on d 6 to 11 to estimate forage intake. In Exp. 1, supplementation had no effect (P = 0.22 to 0.99) on grazed diet or milk composition. Apparent total tract OM disappearance increased (P = 0.03), and apparent total tract N disappearance tended (P = 0.11) to increase in supplemented calves. Microbial efficiency was not affected (P = 0.50) by supplementation. There were no differences in ruminal pH (P = 0.40) or total VFA concentration (P = 0.21) between treatments, whereas ruminal NH3 concentration increased (P = 0.03) in supplemented compared with control calves. In Exp. 2, supplementation decreased (P = 0.02) forage OM intake (OMI; % of BW) and increased (P = 0.06) total OMI (% of BW). Supplementation had no effect on ADG (P = 0.94) or G:F (P = 0.35). Supplementation with a wheat middlings and soybean hull-based creep feed reduced forage OMI but improved total tract OM and N digestion and had minimal effects on ruminal fermentation or performance. Supplementation with a wheat middlings and soybean hulls-based creep feed might improve OM and N digestion, but might not produce significantly greater BW gains compared with no supplementation.

Animal Feed↗
PubMed2004

Effect of field pea-based creep feed on intake, digestibility, ruminal fermentation, and performance by nursing calves grazing native range in western North Dakota.

Two experiments evaluated digestive and performance effects of field pea-based creep feed in nursing calf diets. In Exp.1, eight nursing steer calves (145 +/- 27 kg initial BW) with ruminal cannulas were used to evaluate effects of supplementation and advancing season on dietary composition, intake, digestion, and ruminal fermentation characteristics. Treatments were unsupplemented control (CON) and field pea-based creep (SUP; 19.1% CP, DM basis) fed at 0.45% BW (DM basis) daily. Calves grazed native range with their dams from early July through early November. Periods were 24 d long and occurred in July (JUL), August (AUG), September (SEP), and October (OCT). Experiment 2 used 80 crossbred nursing calves, 48 calves in yr 1 and 32 calves in yr 2 (yr 1 = 144 +/- 24 kg; yr 2 = 121 +/- 20 kg initial BW), to evaluate effects of field pea-based creep on calf performance. Treatments included unsupplemented control (CON); field pea-based creep feeds containing either 8% (LS); or 16% (HS) salt; and soybean meal/field pea-based creep containing (as-fed basis) 16% salt (HIPRO). Masticate samples from SUP calves in Exp.1 had greater CP (P = 0.05) than those from CON calves. Forage CP and ADIN decreased linearly with advancing season (P = 0.01 and 0.03, respectively). In vitro OM digestibility of diet masticate decreased from JUL to OCT (P < 0.01; 58.5 to 41.3%). Forage intake did not differ (P = 0.33) between treatments but increased linearly with advancing season (1.67, 1.90, 3.12, 3.38 kg/d for JUL, AUG, SEP, and OCT, respectively; P < 0.01). Milk intake (percentage of BW) did not differ (P = 0.56) between CON and SUP calves but decreased linearly (P < 0.01) with advancing season. Supplemented calves had greater (P = 0.03) total intake (g/kg of BW; forage + milk + creep) compared with CON calves. Treatment did not affect (P < 0.30) rate of in situ disappearance of forage or creep. Forage DM, CP, and creep DM disappearance rate decreased linearly (P < or = 0.02) with advancing season. Supplementation decreased (P = 0.05) ruminal pH, whereas ruminal ammonia and VFA concentrations were greater (P < or = 0.02) in SUP calves. In Exp. 2, creep-fed calves had greater ADG and final BW than CON calves (P < 0.01). Calves offered HS tended (P = 0.07) to have increased gain efficiency above CON than LS calves. Field peas can be used as an ingredient in creep feed to increase calf weight gain without negatively affecting ruminal fermentation and digestion.

Animal Feed↗
PubMed1992

Pine Ridge IHS Primary Care Resident Rotation.

With the support of the Oglala Sioux Tribe and the Aberdeen Area Indian Health Service, the University of South Dakota School of Medicine initiated development of a primary care resident rotation at the Pine Ridge IHS provider site. The rotation was conceived in an effort to help address the problem of recruitment and retention of physicians at Pine Ridge in the long term, while offering a unique educational experience for residents. It is a cooperative effort of four neighboring medical schools in South Dakota, North Dakota and Nebraska. Similar relationships between tribes, the Indian Health Service, and medical schools are encouraged, with the belief that such endeavors will assist in stabilizing professional staffs at provider sites, and lead to improved health care of the Indian people.

Humans↗
PubMed2002

Risk factors for sudden infant death syndrome among northern plains Indians.

CONTEXT: Sudden infant death syndrome (SIDS) is a leading cause of postneonatal mortality among American Indians, a group whose infant death rate is consistently above the US national average. OBJECTIVE: To determine prenatal and postnatal risk factors for SIDS among American Indians. DESIGN, SETTING, AND PARTICIPANTS: Population-based case-control study of 33 SIDS infants and 66 matched living controls among American Indians in South Dakota, North Dakota, Nebraska, and Iowa enrolled from December 1992 to November 1996 and investigated using standardized parental interview, medical record abstraction, autopsy protocol, and infant death review. MAIN OUTCOME MEASURES: Association of SIDS with maternal socioeconomic and behavioral factors, health care utilization, and infant care practices. RESULTS: The proportions of case and control infants who were usually placed prone to sleep (15.2% and 13.6%, respectively), who shared a bed with parents (59.4% and 55.4%), or whose mothers smoked during pregnancy (69.7% and 54.6%) were similar. However, mothers of 72.7% of case infants and 45.5% of control infants engaged in binge drinking during pregnancy. Conditional logistic regression revealed significant associations between SIDS and 2 or more layers of clothing on the infant (adjusted odds ratio [aOR], 6.2; 95% confidence interval [CI], 1.4-26.5), any visits by a public health nurse (aOR, 0.2; 95% CI, 0.1-0.8), periconceptional maternal alcohol use (aOR, 6.2; 95% CI, 1.6-23.3), and maternal first-trimester binge drinking (aOR, 8.2; 95% CI, 1.9-35.3). CONCLUSIONS: Public health nurse visits, maternal alcohol use during the periconceptional period and first trimester, and layers of clothing are important risk factors for SIDS among Northern Plains Indians. Strengthening public health nurse visiting programs and programs to reduce alcohol consumption among women of childbearing age could potentially reduce the high rate of SIDS.

Alcohol Drinking↗
PubMed2006

Reliability of self-reported ancestry among siblings: implications for genetic association studies.

This study investigated the reliability of self-reported ancestry by comparing the interview responses of probands and their siblings. A total of 546 sibling pairs were ascertained in a family-based study of susceptibility genes for Parkinson's disease and asked to identify maternal and paternal countries of origin. Probands were recruited prospectively from the Department of Neurology of the Mayo Clinic in Rochester, Minnesota, from June 1, 1996, through May 31, 2005. Probands resided within Minnesota or one of the four surrounding states (Wisconsin, Iowa, South Dakota, North Dakota). Only 49 percent of these sibling pairs, primarily Caucasian, agreed completely on the countries of origin of both parents. The agreement increased to 68 percent when named countries were postcoded into six population genetic clusters (as previously defined by microsatellite markers). Self-reported ancestry may not be a reliable method to reduce the possible impact of population stratification in genetic association studies of outbred populations, such as in the United States.

Adult↗
PubMedDate not supplied

Fetal alcohol syndrome prevention: annual and cumulative cost savings.

Fetal alcohol syndrome (FAS) is a common developmental disability. FAS is thought to be 100% preventable. While this is a theoretical truth, a prevention rate of 100% appears unlikely in the near future. However, several prevention strategies are available. In this paper, we examine the potential cost savings from prevention of one case of FAS each year in the state of North Dakota. We utilized the North Dakota Health Claims Database to examine annual cost of health care for children birth through 21 years of age with FAS and controls. The mean annual cost of health care for children birth through 21 years of age with FAS was US2842 dollars (n=45). This is US2342 dollars per capita more than the annual average cost of care for children in North Dakota who do not have FAS (US$500 per year). Prevention of one case of FAS per year in North Dakota would result in a cost savings of US128,810 dollars in 10 years and US491,820 dollars after 20 years. After 10 years of prevention, the annual savings in health care costs alone for one case of FAS would be US23,420 dollars.

Adolescent↗
PubMedDate not supplied

Risk factors for alcohol use during pregnancy in a multistate area.

A substance use screening instrument was used to select persons into two risk categories for drinking during pregnancy. About one-fourth (23.8%) of the survey participants were classified as high-risk women and the others were classified as low risk for drinking when pregnant. The participants (N=4676) for the study were sampled from four states (Montana, Minnesota, South Dakota, and North Dakota) that are a part of the Four-State Fetal Alcohol Syndrome (FAS) Consortium. Clinic sites for the administration of the prenatal screening instrument were selected in each state, based on geographic and known population characteristics. Univariate and multivariate statistical procedures were used to determine factors predictive of alcohol use. The purpose of the study was to assess risk factors for alcohol use in pregnant women. Women at high risk for alcohol use when pregnant tended to be younger, less educated, single, and unemployed. Demographic factors that were protective of drinking when pregnant were being married and full-time housewife status. Other variables associated with high-risk status for maternal alcohol use were past sexual abuse, current or past physical abuse, using tobacco, using other drugs, living with substance users, and having mates who were substance users. Other contributing factors for high-risk classification included feeling sad, believing that drinking any amount of alcohol while pregnant was acceptable, and being able to hold four or more drinks. Intervention programs that ameliorate risk factors and enhance protective attributes of high-risk pregnant women are needed.

Adolescent↗
PubMed2001

Hypertension treatment patterns in American Indians: the strong heart study.

Pharmacologic treatment patterns for hypertensive American Indians from 13 communities in Arizona, Oklahoma, South Dakota, and North Dakota were assessed. Participants (2254 women and 1384 men, aged 48 to 79 years) completed a clinical examination between July 1993 and December 1995. The mean of two blood pressure (BP) measurements and detailed medication histories were obtained. The observed prevalence of hypertension was 46.7% (n=1698). In participants taking antihypertensive medications (n=1114), four principal drug classes were evaluated: diuretics, calcium channel blocking agents, beta-blocking agents, and angiotensin-converting enzyme (ACE) inhibitors. Among treated hypertensive participants, 71.4%, 24.6%, and 4.0% received one, two, and three medications, respectively. Among single drug regimens, ACE inhibitors (n=340) were used most often (49.4%), with calcium channel blocking agents and diuretics accounting for 24.2% and 19.9%, respectively. Although multiple drug class therapies varied, the combination of a diuretic and ACE inhibitor (n=120) accounted for 47.4% of dual therapy use. Hypertension control (SBP < 140 mm Hg, DBP < 90 mm Hg) rates were highest for those on dual therapies (65.4%), followed by participants on single (53.8%) and triple (43.6%) therapies. Among monotherapies, diuretics exhibited the best overall hypertension control rate in both diabetics (63.0%) and nondiabetics (68.0%), versus 47% to 61% for other remaining agents. The frequent use of ACE inhibitors, used singly or in combination, reflects the high prevalence of diabetes among American Indians. ACE inhibitors, combined with diuretics, were particularly useful in achieving BP control in this population.

Age Factors↗