The objectives of this retrospective study were to (1) investigate the effects of heat stress (HS) climatic conditions and breed on milk and component yield for Holstein and Jersey cows on the same farm and (2) determine the effects of breed on udder health as measured by somatic cell score during HS climatic conditions. Data were collected from Dairy Herd Improvement Association records of 142 Jersey and 586 Holstein cows from the Bearden Dairy Research Center at Mississippi State University (Mississippi State). Heat stress climatic conditions were determined using a temperature-humidity index (THI) to combine dry bulb temperature and relative humidity into one measure. Two analyses were conducted to determine the effects of HS. Heat stress was defined as THI ≥ 72, and reported as HS+ for the first analysis and HS for the second analysis. The first analysis compared breeds during HS+ and non-heat-stress (HS-) conditions. Holstein milk yield decreased during HS+, whereas Jersey milk yield increased. Milk fat percentage for Holstein and Jersey cows declined during HS+. Holstein fat-corrected milk yield decreased during HS+, whereas Jersey fat-corrected milk yield during HS+ did not differ from that during HS-. During HS+, somatic cell score increased in milk from Holstein and Jersey cows compared with HS-. In the second analysis, HS was categorized as mild, moderate, or severe. The corresponding THI values were THI ≥ 72 but <79, THI ≥ 79 but <90, and THI ≥ 90. Holstein milk yield declined during moderate and severe HS, whereas Jersey milk yield declined during severe HS. Holstein milk fat percentage was less during moderate and severe HS compared with milk fat percentage during mild HS. Jersey milk fat percentage did not differ with regard to HS category. Jersey cows appeared to be more heat tolerant than Holstein cows; however, Holstein cows still produced larger volumes of milk.

African Americans have higher colorectal cancer (CRC) morbidity and mortality than whites, yet have low rates of CRC screening. Few studies have explored African Americans' own perceptions of barriers to CRC screening or elucidated gender differences in screening status. Focus groups were conducted with 23 African American patients between 50 and 70 years of age who were © Springer 2010 Correspondence to: Sarah Bauerle Bass, sbass@temple.edu. NIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author Manuscript patients in a general internal medicine clinic in a large urban teaching hospital. Focus groups were delimited by gender and CRC screening status. Focus group transcripts were analyzed using an iterative coding process with consensus and triangulation to develop thematic categories. Results indicated key thematic differences in perceptions of screening by gender and CRC screening status. While both men and women who had never been screened had a general lack of knowledge about CRC and screening modalities, women had an overall sense that health screenings were needed and indicated a stronger need to have a positive relationship with their doctor. Women also reported that African American men do not get colonoscopy because of the perceived sexual connotation. Men who had never been screened, compared to those who had been screened, had less trust of their doctors and the health care system and indicated an overall fear of going to the doctor. They also reiterated the sexual connotation of having a colonoscopy and were apprehensive about being sedated during the procedure. Overall, men expressed more fear and were more reluctant to undergo CRC screening than women, but among those who had undergone CRC screening, particularly colonoscopy, men expressed advantages of having the screening. All groups were also found to have a negative attitude about the use of fecal occult blood testing and felt colonoscopy was the superior screening modality. Results suggest that messages and education about CRC screening, particularly colonoscopy, might place more emphasis on accuracy and might be more effective in increasing screening rates among African Americans if tailored to gender and screening status. NIH Public Access

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Prescription medication borrowing can result in adverse health outcomes. We aimed to study the patterns of borrowing prescription medications in an adult urban population seeking healthcare in the outpatient, emergency, and inpatient units of an urban medical center. Participants indicated whether they (1) had a primary care doctor, medical insurance, a prior history of substance abuse, psychiatric disorders, or chronic pain; and (2) had borrowed a prescription medication. If so, they noted the medication obtained, source, frequency of use, and reasons why they had not obtained a prescription from a licensed medical provider. Of the 641 participants, most were African American (75%), urban residents (75%), high school educated or less (71%), and lacked full-time employment (68%). Many had health insurance (90%) and had recently seen their primary medical provider (75%). Eighteen percent reported ever borrowing a prescription medication. On multivariate analysis, history of chronic pain was marginally associated with increased medication borrowing (odds ratio [OR] = 1.58) while having Medicare insurance (OR = 0.436) or a primary care medical provider routinely ask about medication usage (OR = 0.589) were significantly associated with decreased medication borrowing. The most commonly obtained medications were for pain (74%), usually in the form of opioids, and were obtained from a family member (49%) or friend (38%). Thirty-five percent of those who borrowed medications did so more than once a year, with lack of convenient access to medical care the most frequently cited reason for use (67%). Only a third of those who borrowed medications had informed their primary medical providers of the behavior. In conclusion, borrowing prescription medications is a common behavior in the population studied. Further research is warranted into interventions to reduce such use, especially the impact of methods to improve the convenience of contacting licensed medical providers.

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African Americans have higher colorectal cancer (CRC) mortality than White Americans and yet have lower rates of CRC screening. Increased screening aids in early detection and higher survival rates. Coupled with low literacy rates, the burden of CRC morbidity and mortality is exacerbated in this population, making it important to develop culturally and literacy appropriate aids to help low-literacy African Americans make informed decisions about CRC screening. This article outlines the development of a low-literacy computer touch-screen colonoscopy decision aid using an innovative marketing method called perceptual mapping and message vector modeling. This method was used to mathematically model key messages for the decision aid, which were then used to modify an existing CRC screening tutorial with different messages. The final tutorial was delivered through computer touch-screen technology to increase access and ease of use for participants. Testing showed users were not only more comfortable with the touch-screen technology but were also significantly more willing to have a colonoscopy compared with a “usual care group.” Results confirm the importance of including participants in planning and that the use of these innovative mapping and message design methods can lead to significant CRC screening attitude change.

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Determination of animal preference in the early stages of the evaluation process of new forages may provide insights into potential animal performance as well as plant responses to grazing. A 2‐yr study was conducted at Raymond, MS, to determine grazing preference of cattle between tetraploid and diploid annual ryegrass (Lolium multiflorum Lam.) cultivars and its relationship with morphological and chemical characteristics. Treatments were two tetraploid cultivars, Maximus and Nelson, and two diploid cultivars, Marshall and Gulf, arranged in a 4 × 4 Latin square design experiment. Eight Angus crossbred yearling steers (Bos taurus) (initial body weight of 320 ± 19 kg) were used to determine grazing preference based on herbage disappearance, the Chesson–Manly (CM) index, and amount of time spent grazing. In both years, herbage disappearance was greater for the tetraploid (1380 kg ha−1) than diploid cultivars (895 kg ha−1), with greater CM index for the tetraploid than for the diploid cultivars (8.1 vs. 5.8% in Year 1 and 6.9 vs. 5.5% in Year 2). Also, animals spent about 10% greater time grazing the tetraploid than diploid cultivars during both years. During the first year, the tetraploid cultivars had less neutral detergent fiber (NDF) (556 vs. 589 g kg−1) and less acid detergent fiber (ADF) (341 vs. 359 vs. g kg−1) than the diploid cultivars and Nelson had greater water‐soluble carbohydrate (WSC) concentration (184 g kg−1) than the other three cultivars (152 g kg−1). In the second year, NDF, ADF, and WSC were not different among cultivars. Tetraploid cultivars had a greater proportion of leaf than diploid cultivars. The results indicate that cattle showed greater preference for tetraploid cultivars, which appeared to be linked mainly with pregraze herbage mass and the proportion of leaf.