Lysine Requirements of Fast- and Slow-Growing Broiler Chicks
نویسندگان
چکیده
منابع مشابه
Early lysine deficiency in young broiler chicks.
The carry-over effect of a pre-starter diet (0 to 3 days of age) deficient in lysine on subsequent growth and body composition (3 to 10 days) was examined in two experiments on male broiler chicks raised in cages. In experiment 1, lysine deficiency was applied from 3 to 10 days after providing a balanced pre-starter control feed (D+, 1.40% lysine) or a lysine deficient feed (D-) during the firs...
متن کاملEffect of Supplementation with Synthetic Lysine on the Performance of Finisher Broiler Chicks
The study was conducted to evaluate the effect of different levels of synthetic lysine (sLys) on dry matter intake (DMI), average daily weight gain (ADG), dry matter conversion ratio (DMCR), carcass characteristics and economics of productionof finisher broiler chicks. As 240 day-old broiler chicks were randomly distributed to 12 pens of 20 chicks each and assigned to four treatment rations in ...
متن کاملestimating requirements of digestible methionine, lysine and threonine in starting period of broiler chicks, using response surface method
central composite design (ccd; 5 levels and 3 factors) and response surface regression (rsreg) were used to evaluate the response of broiler chicks [average daily gain (adg), feed conversion ratio (fcr) and feed intake (fi)] to dietary requirements of lysine (lys), methionine (met) and threonine (thr). a total of 60 battery brooder units of 6 birds each were assigned to 15 diets in 3 replicati...
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A study was carried out to investigate the sodium requirements of broiler chicks in the first week post-hatching using diets with two dietary electrolyte balances (DEB). During the first week, birds were given feeds with four levels of total sodium (0.12, 0.24, 0.36, and 0.48%) and two DEB (Na+ + K+ − Cl− = 160 or 240 mEq/kg). Feeds given thereafter to 42 d had common formulation. Both sodium a...
متن کاملCOMMENTS AND OPINIONS Fast-Growing and Slow-Growing Melanomas
at the donor site, which may be responsible for the Koebner phenomenon . Many questions arise out of this observation. Is the degree of trauma important in precipitating the phenomenon? Is the activity lesion specific or generalized? What are the factors responsible for the survival of transplanted melanocytes? Are these patients vulnerable to recurrence or loss of pigment in the lesions treate...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1991
ISSN: 0032-5791
DOI: 10.3382/ps.0702108