Mostrando 801 - 820 Resultados de 11,636 Para Buscar '"Cowes"', tiempo de consulta: 0.13s Limitar resultados
  1. 801
  2. 802
    “…The avoidance distance test measures the closest distance that a person can approach a cow, which is a measure of whether stockpersons handling the cows in shelters have had a humane and positive relationship with these cows. …”
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  3. 803
    “…The objective was to determine the effects of sleep or lying deprivation on the behavior of dairy cows. Data were collected from 8 multi- and 4 primiparous cows (DIM = 199 ± 44 (mean ± SD); days pregnant = 77 ± 30). …”
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  4. 804
    “…BACKGROUND: Allergy to cow’s milk is the most frequent allergy occurring in infants and young children. …”
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  5. 805
    “…This study confirmed that 14 plasma differential proteins in the inactive ovaries of postpartum dairy cows were associated with follicular development, and these findings provide a foundation for further research on the mechanism and prevention of inactive ovaries in dairy cows.…”
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  6. 806
  7. 807
  8. 808
  9. 809
    “…A comparative study of traditional (Malta farm) and hydroponic fodder (Gozo farm) was conducted in Malta with 20 cows of the Holstein–Friesian breed from two farms. …”
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  10. 810
    “…Among 1,241 buffalo cows, 112 buffalo cows were randomly selected at day 0 of the estrus cycle for studying ovarian features. …”
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  11. 811
    “…OBJECTIVE: To analyze the presence of selective antibiotic residues (oxytetracycline, amoxicillin, and ciprofloxacin) in milk during the antibiotic treatment course, and to evaluate the thermal effect on antibiotics residual status in milk of antibiotic-treated cows. MATERIALS AND METHODS: The raw fresh milk was collected from 18 lactating cows before antibiotics treatment, which were brought to the veterinary hospital and suffered from either mastitis, foot and mouth disease, fever, local wound, or non-specific diarrhea, and so on. …”
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  12. 812
    “…The immunological mechanism underlying Immunoglobuline E (IgE)-mediated cow’s milk allergy has been subject to investigations for many years. …”
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  13. 813
    “…SIMPLE SUMMARY: Comfortable walking surfaces are of great importance for dairy cow welfare, especially because many dairy cows are affected by lameness, which is associated with painful claws. …”
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  14. 814
    “…In this study, the effects of restriction feeding on the liver function, hepatic uridine diphosphate glucuronosyltransferase (UGT) activity, hepatic insulin-like growth factor (IGF)-1 mRNA expression and response to high-dose estradiol-17β (E(2)) administration were investigated in non-lactating cows. Cows were assigned to either restricted feeding (30% of total digestible nutrient requirement) or ad libitum feeding of a dent corn-based concentrate and roughage for a 2-week feeding trial (Day 1=day of beginning the feeding trial). …”
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  15. 815
    “…In this paper we review the effects of heat stress throughout the life cycle of the dairy cow, with particular emphasis on the impact of heat stress during late gestation on the cow and the developing fetus, both before and after parturition. …”
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  16. 816
    “…Data consisted of the first test-day record of early-lactation cows in multi-breed herds. Holstein-Friesian cows had the greatest concentration of blood BHB and NEFA, followed by Simmental and Brown Swiss. …”
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  17. 817
    “…Using the reticulum pH assay, the animals were categorized as pH < 6.22 (5.3% of cows), pH 6.22–6.42 (42.1% of cows), pH 2.6–6.62 (21.1% of cows), and pH > 6.62 (10.5% of cows). …”
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  18. 818
    “…Bovine torovirus (BToV) is recognized as an enteric pathogen of calves, but its etiological role in diarrhea and epidemiological characterization in adult cows remain unclear. In 2007-2008, three outbreaks of epidemic diarrhea occurred in adult cows at three dairy farms in Niigata Prefecture, Japan. …”
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  19. 819
  20. 820
    “…A coronavirus (Kakegawa isolate) isolated from a cow with epizootic diarrhea was grown in BEK-1 cells and examined for biophysical and biochemical properties. …”
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