Results 251 to 260 of about 343,178 (287)
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Spawning and Rearing Habitat Use by White Sturgeons in the Columbia River Downstream from McNary Dam
Transactions of the American Fisheries Society, 1993Abstract Spawning and rearing habitats used by white sturgeons Acipenser transmontanus were described from water temperature, depth, and velocity measurements and substrate types present at sites where eggs, larvae, young-of-the-year, and juveniles (ages 1–7) were collected.
Michael J. Parsley
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Reciprocal Allogrooming in Dam‐reared and Hand‐reared Impala Fawns
Ethology, 1992AbstractAmong adult females and males of African antelope impala are unique in their performance of reciprocal allogrooming. The occurrence of this behaviour in neonatal impala fawns was explored in a free‐ranging impala herd at the San Diego Wild Animal Park where 5 dam‐reared fawns were observed from birth through 10 weeks of age.
Michael S. Mooring, Benjamin L. Hart
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INHERITANCE OF WEIGHTS OF LAMBS REARED ARTIFICIALLY OR WITH THEIR DAMS
Canadian Journal of Animal Science, 1983This study involved 250 lambs reared artificially with milk replacer and solid diet from 2 to 70 days and 316 lambs creep-fed solid diet and reared with their dams from birth to 70 days. Thereafter, all lambs were retained on solid diet to 140 days of age.
J. N. B. SHRESTHA +2 more
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Animal Production Science, 2012
Gilt progeny have lower weaning weights and higher post-weaning medication and mortality rates, indicating greater disease susceptibility, than do sow progeny. The present study aimed to identify explanatory innate or adaptive immunity differences between gilt and sow progeny and potential pre- or post-natal influences.
Y. J. Miller +5 more
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Gilt progeny have lower weaning weights and higher post-weaning medication and mortality rates, indicating greater disease susceptibility, than do sow progeny. The present study aimed to identify explanatory innate or adaptive immunity differences between gilt and sow progeny and potential pre- or post-natal influences.
Y. J. Miller +5 more
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FACTORS INFLUENCING THE GROWTH OF LAMBS REARED ARTIFICIALLY OR WITH THEIR DAMS
Canadian Journal of Animal Science, 1974Over a 3-yr period, weights of 236 lambs reared artificially with liquid plus solid diet from 2 to 70 days and 298 lambs creep-fed a solid diet and reared with their dams from birth to 70 days were recorded at birth, 35, 70 and 140 days of age. Included were 400 lambs of the Suffolk (SU) and Shropshire (SH) breeds and their reciprocal crosses and 134 ...
H. F. PETERS, D. P. HEANEY
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Reproductive and sexual behaviour development of dam or artificially reared male lambs
Physiology & Behavior, 2015The objective of this study was to determine if artificially reared male lambs differ from those reared by their mothers in their reproductive development and sexual behaviour during the first breeding season and in their serum testosterone to a GnRH challenge at the end of the first breeding season.
Juan Pablo, Damián +4 more
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Canadian Journal of Animal Science, 1974
Heterosis, breed-of-sire and breed-of-dam effects on growth rates were estimated in a 3-yr study of the Suffolk (SU) and Shropshire (SH) breeds of sheep and their reciprocal crosses, utilizing 175 lambs reared artificially with liquid plus solid diet from 2 to 70 days and 225 lambs creep-fed a solid diet and reared with their dams to 70 days.
H. F. PETERS, D. P. HEANEY
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Heterosis, breed-of-sire and breed-of-dam effects on growth rates were estimated in a 3-yr study of the Suffolk (SU) and Shropshire (SH) breeds of sheep and their reciprocal crosses, utilizing 175 lambs reared artificially with liquid plus solid diet from 2 to 70 days and 225 lambs creep-fed a solid diet and reared with their dams to 70 days.
H. F. PETERS, D. P. HEANEY
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North American Journal of Fisheries Management, 2021
Abstract During the past 30 years, millions of hatchery-reared Pacific salmon Oncorhynchus spp. have been implanted with PIT tags to estimate their survival and track their migration through the extensive system of hydroelectric dams in the Columbia River basin.
Douglas P. Peterson, Rod O. Engle
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Abstract During the past 30 years, millions of hatchery-reared Pacific salmon Oncorhynchus spp. have been implanted with PIT tags to estimate their survival and track their migration through the extensive system of hydroelectric dams in the Columbia River basin.
Douglas P. Peterson, Rod O. Engle
openaire +1 more source