2021
DOI: 10.37496/rbz5020200262
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Abstract: Non-ruminantsFull-length research article Multivariate modeling strategies to predict nutritional requirements of essential amino acids in semiheavy second-cycle hens ABSTRACT -An experiment with 23 diets was performed to evaluate the effect of digestible lysine (Lys), digestible methionine + cysteine (Met+Cys), and digestible threonine (Thr) on egg production of H&N Brown second-cycle laying hens (SCLH) for 20 weeks (92-111 weeks of age) in cages under environmental conditions. Body weight (BW), feed intake (… Show more

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Cited by 2 publications
(6 citation statements)
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“…The average feed intake of all treatments was 109.8±8.3 g/hen over 16 weeks of production. Feed intake was similar among the diets, between 106.8±7.0 and 110.0±7.8 g/hen, lower than those reported by Morales-Suárez et al (2021) for H&N Brown SCLH during 20 weeks of production, which registered 114.3 and 116.7 g/hen•day. According to the average feed intake, iOM, iSe, and iCr levels in diets (Table 3) range up to 3.300±0.363, 0.132±0.015, and 0.176±0.019 g/hen•day, respectively.…”
Section: Productive Parameterscontrasting
confidence: 46%
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“…The average feed intake of all treatments was 109.8±8.3 g/hen over 16 weeks of production. Feed intake was similar among the diets, between 106.8±7.0 and 110.0±7.8 g/hen, lower than those reported by Morales-Suárez et al (2021) for H&N Brown SCLH during 20 weeks of production, which registered 114.3 and 116.7 g/hen•day. According to the average feed intake, iOM, iSe, and iCr levels in diets (Table 3) range up to 3.300±0.363, 0.132±0.015, and 0.176±0.019 g/hen•day, respectively.…”
Section: Productive Parameterscontrasting
confidence: 46%
“…The fieldwork was conducted under environmental production conditions in San Pedro, Antioquia, Colombia (6°27'34" N latitude, 75°33'28" W longitude, and 2475 m asl), with an annual average temperature of 14 °C and relative humidity of 79%. A total of 1380 91-week-old Isa Brown SCLH were housed for 16 weeks (106 weeks old) in a caged-layer house of commercial design (Californian-type cages) under the molting and resting conditions reported by Morales-Suárez et al (2021).…”
Section: Fieldwork and Experimental Informationmentioning
confidence: 99%
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