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Full-Text Articles in Life Sciences
Effects Of Different Levels Of Energy Supplementation On Growth Of Grazing Holstein Heifers, L. P. Novaes, C. E. Polan
Effects Of Different Levels Of Energy Supplementation On Growth Of Grazing Holstein Heifers, L. P. Novaes, C. E. Polan
IGC Proceedings (1997-2023)
Growth of Holstein heifers was studied for 1987 grazing season to evaluate pasture-drylot systems for raising dairy replacements. Orchardgrass (Dactylis glomerata L), tall fescue (Festuca arundinacea Schreb), bluegrass (Poa pratensis L) and white (Trifolium repens L) and red clover (Trifolium pratense, L) were the principal components of the grass-legume mixture in six paddocks of 1.5 ha each. Carrying capacity was estimated at six animals/ha (3.1 animal units) and excess forage was harvested as hay to control forage growth and quality. Grazing days were 140 days. None or 2.0 kg/d …
Annual Dry Matter And Nutrient Yields In A Dichanthium Sward With Or Without Gliricidia Shrubs, P. Cruz
Annual Dry Matter And Nutrient Yields In A Dichanthium Sward With Or Without Gliricidia Shrubs, P. Cruz
IGC Proceedings (1997-2023)
The aim of this work was to compare the annual biomass production and nutrient removal of a Dichanthium aristatum pasture with those of a pasture of the same species associated with a leguminous tree, Gliricidia sepium. Measurements were made over twelve months between April 1993 and April 1994. Sampling was done with the same defoliation frequency as an intensive cut-and-carry system: every 4 and 10 weeks for the grassland and tree layers respectively. There was no significant difference between the yield of the pure grass (21.6 ± 2.0 t ha-1) and that of the grass with trees …
Seasonal Patterns Of Growth And Senescence In Cynodon Spp. Cv Tifton 85 Grazed Swards, L. F. M. Pinto, L. G. Barioni, S. C. Da Silva
Seasonal Patterns Of Growth And Senescence In Cynodon Spp. Cv Tifton 85 Grazed Swards, L. F. M. Pinto, L. G. Barioni, S. C. Da Silva
IGC Proceedings (1997-2023)
Growth and senescence are very important determinants of grassland productivity and correspond to key features to be considered for grazing management purposes. The present study was carried out at ESALQ, Piracicaba, S.P., Brazil and evaluated growth and senescence as a function of sward surface height. Mathematical models generated revealed that a similar pattern of response occurred as described in the literature for temperate grass species. However, a seasonal variation in response curves for growth and senescence was also observed and could be related to climatic events. Highest herbage accumulation rates were observed within the range of 15 to 20 cm …
Effect Of Temperature On Phenology In Triple-Awned Grass (Stipagrostis Plumosa), Hossein Azarnivand, H. Dastmalchi
Effect Of Temperature On Phenology In Triple-Awned Grass (Stipagrostis Plumosa), Hossein Azarnivand, H. Dastmalchi
IGC Proceedings (1997-2023)
Phenology of triple-awned grass in different stages of vegetative growth, flowering and seed falling was investigated. Each phenological stage was related to minimum and maximum air and soil surface temperatures. Soil surface temperature was measured two times per day during different seasons. Climate data were obtained from the nearest weather station. The study was carried out in sand dunes of band-e-rig of Kashan in the central region of Iran. This species is important in terms of wind erosion control and livestock feeding in arid areas. The results showed that air temperatures ranged from –22 oC to 41.5 oC …
Salinity Effects On Plant Growth, Photosynthesis, And Ion Content Of Covered And Naked Oat, Guiqin Zhao, Baoluo Ma
Salinity Effects On Plant Growth, Photosynthesis, And Ion Content Of Covered And Naked Oat, Guiqin Zhao, Baoluo Ma
IGC Proceedings (1997-2023)
No abstract provided.
Effects Of Different Salts And Concentrations On Germination And Growth Of Leymus Chinensis, L. H. Huang, Z. W. Liang, H. Y. Ma, M. Liu, C. Yan, Z. C. Wang
Effects Of Different Salts And Concentrations On Germination And Growth Of Leymus Chinensis, L. H. Huang, Z. W. Liang, H. Y. Ma, M. Liu, C. Yan, Z. C. Wang
IGC Proceedings (1997-2023)
No abstract provided.
Nutraceutical Intervention With Colostrum Replacer: Can We Reduce Disease Hazard, Ameliorate Disease Severity, And Improve Performance In Preweaned Dairy Calves?, Melissa C. Cantor, D. L. Renaud, Joao H. C. Costa
Nutraceutical Intervention With Colostrum Replacer: Can We Reduce Disease Hazard, Ameliorate Disease Severity, And Improve Performance In Preweaned Dairy Calves?, Melissa C. Cantor, D. L. Renaud, Joao H. C. Costa
Animal and Food Sciences Faculty Publications
The objective of this randomized clinical trial was to determine if an intervention with colostrum replacer (CR; Premolac Plus, Zinpro; 125 g/d fed for 3 d) or a placebo milk replacer (Cows Match, Land O'Lakes Inc.; 125 g/d for 3 d) following a triggered alarm could ameliorate disease bouts in dairy calves. The alarm was set to detect negative deviations of milk intake (20% reduction) or drinking speed (30% reduction) in relation to a calf's 12-d rolling average feeding behavior. Calves were enrolled on this study (n = 42 CR, n = 42 placebo) when they triggered an alarm from …
Effects Of Cobalt Treatment On Growth Of Five Legume Species, Yu Lu, Qinghua Yuan
Effects Of Cobalt Treatment On Growth Of Five Legume Species, Yu Lu, Qinghua Yuan
IGC Proceedings (1997-2023)
No abstract provided.
Salt Tolerance Of Some New Selections Of Warm Season Turfgrasses And Their Salt Tolerance Mechanisms, Jingbo Chen, Tingting Zhang, Jun Yan, Yanqin Jiang, Hailin Guo, Jianxiu Liu
Salt Tolerance Of Some New Selections Of Warm Season Turfgrasses And Their Salt Tolerance Mechanisms, Jingbo Chen, Tingting Zhang, Jun Yan, Yanqin Jiang, Hailin Guo, Jianxiu Liu
IGC Proceedings (1997-2023)
No abstract provided.