Feeding ecology of pintail hens during reproduction
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Feeding ecology of pintail hens during reproduction

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Published by U.S. Fish and Wildlife Service in [Washington, D.C.? .
Written in English


  • Auks,
  • Ducks

Book details:

Edition Notes

ContributionsU.S. Fish and Wildlife Service
The Physical Object
Paginationp. 278-290 :
Number of Pages290
ID Numbers
Open LibraryOL14916933M

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PDF | On Jan 1, , Gary L. Krapu published Feeding ecology of pintail hens during reproduction | Find, read and cite all the research you need on ResearchGate. Feeding ecology of pintail hens during reproduction. [Washington, D.C.?: U.S. Fish and Wildlife Service, ?] (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Gary L . feeding ecology of hens from the standpoint of reproductive stage, especially during egg formation, (3) investigate certain nutrient aspects of pintail reproduction, and (4) determine the magnitude of mercury in liver tissue and egg of pintail hens. Nutrient needs of breeding hen waterfowl in free-living environments are poorly by: 3. A study of the feeding ecology and breeding biology of the South Georgia Pintail was conducted in East Cumberland Bay during November and December Of a variety of water areas available, pintails fed and reared their broods in tussock‐trimmed ponds. The second most important feeding areas were sheltered fjords and seashores.

Time budgets of pintail brood hen behaviour were collected at Oak Hammock Marsh, Manitoba, from June to August Hens spent % of their time at self-maintenance activities (feed, comfort.   This is enables hens to lay an egg approximately every 26 hours. Fact: Hens need approximately 14 hours of sunlight to stimulate egg laying. All About the Chicken’s Reproductive System and the Making of an Egg. The oviduct is about 26 inches long. It twists and turns over on itself in the hen’s body. It is comprised of 5 parts. Krapu, G.L. a. Feeding ecology of pintail hens during reproduction. The Auk – Google Scholar; Krapu, G.L. b. Foods of breeding pintails in North Dakota. G.A. and M.I. Meyer. The role of invertebrates in the feeding ecology of Anatinae during the breeding season. p. –In The Waterfowl and Habitat Management. Our animal reproduction books provide you with all the information you need on a variety of topics. Subjects covered include breeding for robustness, breeding for disease resistance, fertility and breeding poultry for shows. Whether you want to increase the productivity of your farm, want to encourage breeding within rare breeds or simply want.

feed. Also allows eggs to be relatively inexpensive because of the ability of laying hens to lay many eggs in a row. Genetic Selection. Genetic Selection Selecting a desirable trait is the first step to Poultry Genetics and Reproduction Author: Brett Force Created Date. The Northern Pintail hen incubates the eggs for approximately days. After hatching, the hen will lead her ducklings to the water, where they feed on dead insects until they are fledged 45 to 47 days after hatching. Nicknames for pintail ducks include 'sprig', 'spike', and 'spiketail'. During migration, they fly in a V- formation. This study was carried out to determine the effects of boron addition into the diets on serum parameters of hens. A total of Lohman laying commercial hybrid chickens of 62 weeks were fed for 12 weeks with four different rations containing basal feed 0 (B0), 50 (B50), 75 (B75) and (B) mg/kg B. Each group was replicated in 18 cages, four hens per cage. Novel observations of peroxiredoxin-2 profile and protein oxidation in skeletal muscle from pigs of differing residual feed intake and health status, Brian Michael Patterson. PDF. Impact of energy restriction during late gestation on muscle and blood transcriptome of beef .