Forage quality and gosling nutrition in the lesser snow goose (Chen caerulescens caerulescens)
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Forage quality in brood rearing areas of the lesser snow goose and the growth of captive goslings F. GADALLAH and R. Forage quality and gosling nutrition in the lesser snow goose book Department of Botany, University of Toronto, 25 Willcocks Street, Toronto, Ontario, Canada M5S 3B2 Summary 1.
Experimental feeding trials using captive goslings of lesser snow geese were. Gosling body mass can affect first year survival, recruitment, adult body size, and future fecundity of geese, and can serve as an indicator of forage availability and quality on brood-rearing areas.
From – we measured body mass of 76 black brant (Branta bernicla nigricans) and lesser snow goose (Chen caerulescens caerulescens) goslings of known age on the Colville River Delta Cited by: Nathalie Piedboeuf, Gilles Gauthier, Nutritive quality of forage plants for greater snow goose goslings: when is it advantageous to feed on grazed plants?, Canadian Journal of Zoology, /z, 77, 12, (), ().Cited by: We compared growth trajectories of Canada and lesser snow goose goslings raised on grass‐based diets that differed in protein (10%, 14% or 18%) and fibre (30% or 45%) with those of free‐living goslings on Akimiski Island, by: Climate change, phenology, and habitat degradation: Drivers of gosling body condition and juvenile survival in lesser snow geese Article (PDF Available) in Global Change Biology 19(1) Soluble carbohydrate content of shoots of Arctic wetland plants that are consumed by lesser snow geese Robert L.
Jefferies, a Kate A. Edwards a a Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks St.
Details Forage quality and gosling nutrition in the lesser snow goose (Chen caerulescens caerulescens) EPUB
Toronto, ON M5S 3B2, Canada. Variation in nutritive quality over time and among forage plants is important for herbivores such as geese. We examined the seasonal variation of some nutritive attributes (nitrogen, neutral detergent fibre, and phenolic compounds) of five plant species consumed by Greater Snow Geese (Chen caerulescens atlantica) L.
in mesic tundra, a habitat where goose feeding ecology has been little studied. The latest hatched goslings presumably had the lowest quality forage available to them.
Both size and hatch timing disparity concur with a mortality cause that is most likely from complications. The dual effects of climate change and habitat quality on gosling body condition and juvenile survival are not known, but are critical for predicting population growth and related degradation of (sub) arctic ecosystems.
To address these issues, we used information on female goslings marked and measured between and ( individuals). • Livestock Nutrition • Forage Quality • Accessing Forage Quality.
Livestock Nutrition • Nutrients required – Water – Energy • Carbohydrates and Fats – Protein – Minerals – Vitamins. Livestock Nutrition • Water – 60 to 70% of animals live weight.
Nathalie Piedboeuf, Gilles Gauthier, Nutritive quality of forage plants for greater snow goose goslings: when is it advantageous to feed on grazed plants?, Canadian Journal of Zoology, /z, 77, 12, (), (). Ammonia volatilization losses from faeces of Lesser Snow Geese were measured during the summer of on the salt-marsh flats at La Pérouse Bay.
Amounts of ammonia volatilized increased with increasing ambient temperature, and ranged from to mg N per mg of nitrogen present as soluble ammonium ions at the start of the 8-h experiment.
We measured forage intake, digestibility, and retention time for 11 free-ranging, human-imprinted lesser snow geese (Chen caerulescens caerulescens) as they consumed underground stembases of tall cotton-grass (Eriophorum angustifolium) on an arctic staging area in northeastern Alaska.
Geese fed in small patches (x̄= m2) of forage that made up ≤3% of the study area and consisted of high. While declines in forage availability examined here result from reduced grazing pressure, similar shifts in dietary specialization may be occurring.
If so, goslings are ingesting less nutritious food and further limiting time spent foraging on high‐quality grazing lawns. Nutrition. The growth rate of brant goslings, and their food supply in brood-rearing areas, were greater in the oil-field area than in the large brant colonies on the Y-K Delta.
Goslings in the oil fields grew at significantly greater rates than those in the Y-K Delta; they were 41% larger at. The effects of grazing by captive goslings of the lesser snow goose (Chen [Anser] caerulescens caerulescens) on the vegetation of the La Pérouse Bay salt marsh, Hudson Bay, Canada were investigated.
On 7 separate occasions during the summers of and goslings fed on different swards of Puccinellia phryganodes for up to min. Net above-ground primary production (NAPP) and forage.
Quality Forage series: Forage Nutrition for Ruminants (AS, Reviewed May ) Download PDF. Plants utilized in the feeding of livestock have long been a fundamental link in the food chain. Native grasses supported grazing animals well before man began to domesticate livestock.
Description Forage quality and gosling nutrition in the lesser snow goose (Chen caerulescens caerulescens) FB2
Forages have always been an extremely important source of. Further, Richman et al. () showed through feeding trials on two species of wild goslings raised in captivity how nutritional quality and quantity limitation negatively impacted the growth and survival of Canada and lesser snow geese from Akimiski Island.
Therefore, we feel that the HTD covariate is best considered as an index of forage quality and likely models that contained it performed better than models that contained the food-per-capita.
nutrient contents of the principal forage plants uti-lized by lesser snow geese on summer breeding grounds F. GADALLAH & R. JEFFERIES. Forage quality in brood rearing areas of the lesser snow goose and the growth of captive goslings S.
SARANDON & R. SARANDON. Mixture of cultivars: pilot field trial of an ecological alternative to im. What is Quality Forage Worth. The value of high quality forage in a balanced ration is evident in Table 3. When three hays of low, medium, and high quality, are used with corn silage and a mixed feed grain to balance a ration, total feed cost for the high quality hay ratio is $ less per cow per day than the medium quality hay ration.
Source: Gadallah, F. L., and Jefferies, R. ‘‘Forage quality in brood rearing areas of the lesser snow goose and the growth of captive goslings,’’ Journal of Applied Ecology, Vol.
32, No. 2,pp. – (adapted from Figures 2 and 3).
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Goose departure from the breeding grounds is found to be related to the first frost spell (Xu and Si ), and when goslings have not fledged by then they are left behind. Arctic warming may lead to longer summer seasons, providing more time to grow, which may partly offset any negative effects of a mismatch earlier in the season.
Forages, Volume I, Seventh Editionis themost comprehensive text available for teachers of undergraduate Forages courses. This edition will provide students with a good balance of scientific principles, to aid in integrating the concepts they learn, and practical information on forage identification, plant characteristics, management, and utilization that can be used by forage management.
What are forage crops. Forage crops are plants which, when grown as a crop, have been found to produce high yields of plant material, which are also high in nutrients suitable for livestock requirements for maintenance and production.
Natural pasture is a forage but is not grown as a crop, so is termed forage, not a forage crop. 6) Lesser White-fronted Goose (Anser erythropus) Photo by Ken Billington / CC BY-SA. As might be expected, the lesser white-fronted goose is quite similar in appearance and nature to the greater white-fronted goose.
They breed in northern Asia, and winter in central and southern Europe and, on rare occasions, the UK. Forage Quality Forage quality can be affected by a variety of biological and environmental factors.
In general, the nutritional value of forages is highest when the plant has an abundance of young, actively growing leaves and declines as the plant nears maturity. Understanding how and why forage quality changes throughout the year can help.
Carbon and sulphur isotope values of forage plants that we sampled from gosling foreguts were depleted compared to some of the same plants that we sampled from exclosures along transects (Sampling origin: F 1,85 = 5642, P nitrogen values of forage plants eaten by goslings were enriched compared to forage plants we sampled.
participants in the National Forage Quality and Animal Well-Being Project. A major limitation for the livestock producer in making nutritional decisions is the lack of forage quality infor-mation under grazing conditions.
It has been recognized that forage quality and animal requirements change over the season. Determining if a supplement is necessary. Based on the forage analysis for protein (11%) and TDN (60%) Table 1 suggests that this is GOOD quality grass hay and, we could expect a dry cow consume about 5% of her body weight as hay.
if she were a 1, lb cow, we would expect that could eat 35 lbs of hay/day ( x = 35 lbs). --egg production/forage prior to migration 2. Pair bond forms on winter grounds 3. Females hold philopatry to nesting territories -most ducklings/goslings take around days to grow to adult weight -long mvmts by hens to quality brood habitat are often deadly -EVERYTHING is a predator to ducklings/goslings.
Lesser snow increased between and while the population goose gosling growth and survival declined coincident was stable, but below historic densities.
We attribute the with increases in the population and decline in habitat recent increase in gosling mass to the feedbacks between (Cooch et al.
), in contrast to the increase in. Significance of forage quality. Forage quality is highly variable from field to field, cutting to cutting and season to season.
Rarely can a farmer get hay off the same field to test the same twice in a row. Changes in forage quality – either for the good or for the bad – will have a significant impact on both milk production and milk.Broods of geese spend time feeding according to availability and quality of food plants, subject to inherent foraging and digestive constraints.
We studied behavioral patterns of broods of Emperor Geese (Chen canagica) on the Yukon–Kuskokwim Delta, Alaska, and examined how feeding and alert behavior varied in relation to habitat and goose density.
During –, time spent feeding by.
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