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The Effect Of Age Bird Density And Dietary Phosphorus On The Reproductive Performance Of Turkey Hens
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Book Synopsis Reproductive Performance of Turkey Breeders as Influenced by Feed and Light Restriction by : Kenneth Kay Krueger
Download or read book Reproductive Performance of Turkey Breeders as Influenced by Feed and Light Restriction written by Kenneth Kay Krueger and published by . This book was released on 1976 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Restricting day length or feed consumption in winter-hatched Broad Breasted White turkeys were studied for their effects on reproductive performance. Turkey males were either full-fed and received 15, 12 or 8 hours of light per day or restricted-fed and received 15 hours of light per day from 18 through 64 weeks of age. Dark-housed (8 hours of light per day) turkey breeder hens were either full-fed or restricted-fed from 22 to 30 weeks of age. At lighting (30 weeks of age) the full-fed and restricted=fed hen groups were randomly divided and full-fed either 14% or 18% protein diets through 20 weeks of egg production. Turkey males exposed to an 8 hour day produced semen with significantly (P (less than or equal to) 0.05) higher sperm cell concentration over a 30 week collection period than did males receiving 15 hours of light per day. A significant decline in semen volume occurred in full-fed turkey males receiving 15 hours of light per day while full-fed males exposed to 12 or 8 hours of light per day produced increasing semen volumes over the collection period. Mechanically restricting daily feed consumption by approximately 50% (as compared to full-fed males) in turkey males from 18 through 64weeks of age resulted in a 30% reduction in body weight. Restricted-fed males produced increasing semen volume over a 30 week collection period with significantly (P (less than or equal to) 0.05) higher sperm cell concentrations than males full-fed and receiving 15 hours of light per day. Fertility over a 20 week egg production period was significantly higher (P (less than or equal to) 0.05) for restricted-fed males receiving 15 hours of light per day than for full-fed males receiving 15, 12 or 8 hours of light per day. Data presented suggests that the seasonal decline in semen quantity and quality in off-season turkey breeder males may be prevented through the use of feed or light restriction.
Book Synopsis Reproductive Performance of Turkeys as Related to Male Rearing Diets, Semen Quality and Semen Diluents by : David Harrison Miller
Download or read book Reproductive Performance of Turkeys as Related to Male Rearing Diets, Semen Quality and Semen Diluents written by David Harrison Miller and published by . This book was released on 1974 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments were conducted to determine the effects of altering the levels of vitamin A and protein in the rearing and breeding diets of Broad Breasted White (B.B.W.) toms and the effect on subsequent reproductive performance, and to investigate the extension of turkey semen with various experimental diluents and the effect on fertility and hatchability. Experiment I B.B.W. turkey males were reared and maintained on low or high protein diets containing 100, 4000, or 8000 I.U./kg. of vitamin A. Vitamin A at a level of 100 I.U./kg. was low enough to produce symptoms of vitamin A deficiency in one group, as evidenced by their weakened condition and high mortality due to coccidiosis. Body weights were significantly higher at 16, 27, and 34 weeks of age in males receiving 4000 or 8000 I.U./kg. of vitamin A in their diets than the lower level of vitamin A. Hemoglobin, hematocrit or heart rates were not affected by the diets. Generally, males receiving the low vitamin A diets (100-1000 I.U./kg.) had slower maturing testes than males receiving higher levels of vitamin A as evidenced by gross and microscopic appearance at 29 and 51 weeks of age. Gross and histological examination of adrenal glands revealed no differences between groups due to dietary protein or vitamin A levels. ...
Download or read book Poultry Science written by and published by . This book was released on 1990 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 5 includes a separately paged special issue, dated June 1926.
Book Synopsis Proceedings of the ... Annual Texas Nutrition Conference by :
Download or read book Proceedings of the ... Annual Texas Nutrition Conference written by and published by . This book was released on 1975 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrient Requirements of Poultry by : National Research Council
Download or read book Nutrient Requirements of Poultry written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic reference for poultry nutrition has been updated for the first time since 1984. The chapter on general considerations concerning individual nutrients and water has been greatly expanded and includes, for the first time, equations for predicting the energy value of individual feed ingredients from their proximate composition. This volume includes the latest information on the nutrient requirements of meat- and egg-type chickens, incorporating data on brown-egg strains, turkeys, geese, ducks, pheasants, Japanese quail, and Bobwhite quail. This publication also contains new appendix tables that document in detail the scientific information used to derive the nutrient requirements appearing in the summary tables for each species of bird.
Book Synopsis NFIA Literature Review on Phosphorus in Poultry and Game Bird Nutrition by : B. L. Damron
Download or read book NFIA Literature Review on Phosphorus in Poultry and Game Bird Nutrition written by B. L. Damron and published by . This book was released on 1977 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography on the Biology and Production of Turkeys by :
Download or read book Bibliography on the Biology and Production of Turkeys written by and published by . This book was released on 1975 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Advances in Turkey Science by : C. Nixey
Download or read book Recent Advances in Turkey Science written by C. Nixey and published by Butterworth-Heinemann. This book was released on 1989 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on papers given at the 21st Poultry Science Symposium, Newport, Shropshire, UK, Sept. 1987. It is quite a thorough account of new developments in turkey science. Recent years have seen a huge increase in the production and consumption of turkey meat. This book gathers much of the important work concerning the breeding, growing and health of turkeys. The final part of the book deals with meat production. Topics include: the world turkey industry, genetics, physiology of egg production, embryology, nutrition and management of breeding stock, biology of growth, the physiology of muscle growth, nutritional and environmental responses of growing turkeys, respiratory diseases and enteric conditions of turkeys, meat yield, texture flavor and taint. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Livestock and the Environment by : M. L. Rowe
Download or read book Livestock and the Environment written by M. L. Rowe and published by . This book was released on 1977 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Reporting Series written by and published by . This book was released on 1972 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Livestock and the Environment by : Ralph H. Ramsey
Download or read book Livestock and the Environment written by Ralph H. Ramsey and published by . This book was released on 1974 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1974 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1992-08 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1970 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
