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Supplemental palmitic acid and chromium propionate impact production responses during the immediate postpartum in multiparous dairy cows.
J Dairy Sci
January 2025
Department of Animal Science, College of Agriculture and Natural Resources. Electronic address:
Forty-eight multiparous Holstein cows were used in a randomized complete block design and assigned to one of 4 treatments in a 2x2 factorial arrangement of treatments to determine the effects of supplemental palmitic acid (C16:0) and chromium (Cr) on production responses of early-lactation cows. During the fresh period (FR; 1-24 d in milk), cows were fed one of 4 treatments: (1) a diet containing no supplemental C16:0 or Cr (CON); (2) diet supplemented with an 85% C16:0-enriched supplement (PA); (3) diet supplemented with Cr-propionate (CR); and (4) diet supplemented with a C16:0-enriched supplement and Cr-propionate (PACR). The C16:0-enriched supplement was added at 1.
View Article and Find Full Text PDFEnhancement of Air-Entrained Grout-Enriched Vibrated Cemented Sand, Gravel and Rock (GECSGR) for Improving Frost and Thawing Resistance in CSGR Dams.
Materials (Basel)
January 2025
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China.
Cemented Sand, Gravel, and Rock (CSGR) dams have traditionally used either Conventional Vibrated Concrete (CVC) or Grout-Enriched Roller Compacted Concrete (GERCC) for protective and seepage control layers in low- to medium-height dams. However, these methods are complex, prone to interference, and uneconomical due to significant differences in the expansion coefficient, elastic modulus, and hydration heat parameters among CSGR, CVC, and GERCC. This complexity complicates quality control during construction, leading to the development of Grout-Enriched Vibrated Cemented Sand, Gravel, and Rock (GECSGR) as an alternative.
View Article and Find Full Text PDFEffects of Oregano Essential Oil and/or Yeast Cultures on the Rumen Microbiota of Crossbred Simmental Calves.
Animals (Basel)
December 2024
College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
This study hypothesized that combining oregano essential oil () and yeast cultures (s) would modulate rumen microbiota to promote gastrointestinal homeostasis and function. Twenty-four newborn, healthy, disease-free, crossbred Simmental male calves (birth weight ≥ 35 kg) were assigned to one of four treatments based on birth data. Treatments were as follows: (1) Control (), calves fed calf starter without additives; (2) , calves fed calf starter containing 60 mg/kg body weight () of OEO per day; (3) s, calves fed calf starter containing 45 mg/kg BW of YC per day; and (4) , calves fed calf starter with OEO (60 mg/kg, BW) and YC (45 mg/kg, BW) combination.
View Article and Find Full Text PDFImaging malaria parasites across scales and time.
J Microsc
January 2025
Centre for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany.
The idea that disease is caused at the cellular level is so fundamental to us that we might forget the critical role microscopy played in generating and developing this insight. Visually identifying diseased or infected cells lays the foundation for any effort to curb human pathology. Since the discovery of the Plasmodium-infected red blood cells, which cause malaria, microscopy has undergone an impressive development now literally resolving individual molecules.
View Article and Find Full Text PDFEnvironmental risk assessment of the surface sediments based on trace elements analysis from the largest freshwater lake in the southern slope of the Himalaya, Nepal.
Environ Monit Assess
December 2024
Central Department of Geology, Tribhuvan University, Kirtipur, Kathmandu, 44600, Nepal.
Freshwater ecosystems, including high-altitude lakes, can be affected by trace metal pollution derived from a mix of natural sources and anthropogenic activities. These pollutants often collect in surface sediments, with notable concentrations in the deeper areas of lakes. To evaluate the environmental risk associated with metal contaminated sediment in Rara Lake, southern Himalaya, surface sediment samples were systematically collected in November 2018, with a subsequent specific emphasis on determinations of trace element concentrations.
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