THE HATCHING OF CHICKENS FROM PRESERVED EGGS.
نویسندگان
چکیده
منابع مشابه
Hatching Eggs & Other 64
s of papers 17 a significant improvement in growth, feed efficiency, or mortality under conditions of this trial.
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Unquestionably, the sanitary quality of the hatching eggs will affect the quality of the day-old chicks. The egg leaves the oviduct free of any microorganisms (except for vertically-transmitted pathologies), but even eggs which are laid « clean » present a wide diversity of bacteria on the shell. Furthermore, after being laid, the egg’s temperature drops (from 41 to 21°C), which causes embryoni...
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In the spring of 1927 and in other years since that time considerable numbers of farm animals, chiefly mules, have been killed in the lower Mississippi Valley by outbreaks of the Southern Buffalo Gnat. In Former times this insect caused enormous losses for livestock in this region, but for some forty years prior to the present series of outbreaks, little was recorded concerning its depredations...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1903
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(01)36423-1