Effect of method and phase of nutrient restriction during rearing on productive performance of light hybrid pullets and hens

Kwakkel, R.P.; Koning, F.L.S.M. de; Verstegen, M.W.A.; Hof, G.

doi:10.1080/00071669108417401

Cited by 26 publications

(12 citation statements)

References 17 publications

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“…During this period, there was a slight difference between standard and achieved body weight gain (Table 2). This result coincided with the findings of Kwakkel et al (1991). During this time, the chicks were affected by coccidiosis.…”

Section: Resultssupporting

confidence: 76%

Growth Performance of Kasila Broiler Parent Stock Reared on Quantitative Feed Restriction under Bangladesh Condition

Hossain¹,

Chowdhury²,

Ahammed³

et al. 2005

International J. of Poultry Science

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A total of 201 Kasila broiler parent chicks were reared in an open-sided house from one-day to 22 weeks of age and growth performance and uniformity were monitored. The birds were maintained on quantitative feed restriction and their adaptability was evaluated. The experimental period was divided into three phases, phase I (day-old to 2 weeks), phase II (3 to 8 weeks) and phase III (9 to 22 weeks). The birds were provided with identical care and management like feeding, watering, ventilation, lighting, vaccination and disease control programme. Female chicks followed standard growth and feed consumption curves very closely while, male followed standard growth curve irregularly. The body weight of females at the end of 2nd, 8th and 22nd weeks were slightly higher but close to the standard while, males were little higher at 2nd & 22nd week but little lower at 8th week. Body weight gain of both females and males were lower during 3 to 8 weeks and higher during 9 to 22 weeks of age. Kasila females exhibited acceptable uniformity ranges during the study period except at 20th week. But the males showed lower trends in uniformity in most of the growth period. The birds were more prone to Mycoplasmosis during the growing period in spite of adopting preventive measures including medication. Kasila broiler parents are adaptable under Bangladesh condition if environmental stress could be minimized by taking appropriate measures and following breeder's instructions.

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Section: Resultssupporting

confidence: 76%

Growth Performance of Kasila Broiler Parent Stock Reared on Quantitative Feed Restriction under Bangladesh Condition

Hossain¹,

Chowdhury²,

Ahammed³

et al. 2005

International J. of Poultry Science

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“…Este resultado condiz com a hipótese do ganho compensatório observado por Kwakkel et al (19) , em que aves alimentadas à vontade com níveis adequados de lisina nas fases subsequentes à fase inicial não tiveram seu desempenho afetado durante a fase de produção.…”

Section: Resultsunclassified

Exigência De Metionina + Cistina Para Frangas De Reposição Na Fase Inicial (1 a 6 Semanas De Idade)

et al. 2017

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ResumoObjetivou-se determinar a exigência de metionina + cistina total para frangas na fase inicial e verificar seu efeito sobre a fase de postura. Na primeira fase experimental, 720 aves (50% Lohmann LSL e 50% Lohmann Brown) com uma semana de idade foram distribuídas em delineamento experimental inteiramente casualizado, em esquema fatorial 5 x 2 (níveis de met + cis e linhagens), com quatro repetições e 18 aves por repetição. Os níveis de met + cis total estudados foram 0,536; 0,616; 0,696; 0,776; e 0,856 %. Ao atingirem 22 semanas de idade, iniciou-se a segunda fase experimental, sendo utilizadas 240 aves (50% Lohmann LSL e 50% Lohmann Brown) provenientes da primeira fase experimental. A ração fornecida às aves nesta fase foi igual para todos os tratamentos. Na fase de produção avaliaram-se os efeitos residuais das dietas fornecidas no período inicial sobre os parâmetros produtivos. As exigências de metionina + cistina recomendadas para aves leves e semipesadas, no período de 1 a 6 semanas de idade, são de 0,778% de met + cis total (correspondendo a 0,700% de met + cis digestível) e 0,739% de met + cis total (correspondendo a 0,665% de met + cis digestível), respectivamente.Palavras-chave: aminoácidos; maturidade sexual; ovos; poedeiras; requerimentos. AbstractAn experiment was carried out to evaluate the requirement of methionine +cystine for growing pullets at starter phase (1 to 6 weeks old) and its effect on the laying phase. In the first experiment, 720 birds (50% Lohmann LSL and 50% Lohmann Brown) at one week of age were distributed on a completely randomized design, 5 x 2 factorial arrangement (levels of met + cys and strain), with four replications

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“…Nível bem próximo ao obtido neste ensaio foi observado por Kwakkel et al (1991), que verificaram que a oferta de dietas com 0,31% de lisina digestível para frangas com 7 a 18 semanas de idade promoveu redução da produção de ovos de 19 a 32 semanas de idade.…”

Section: Methodsunclassified

Níveis de lisina digestível para poedeiras Lohmann LSL na fase de 16 a 25 semanas de idade

et al. 2011

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RESUMO -Neste experimento foram avaliados os efeitos de níveis de lisina digestível no desempenho, no balanço de nitrogênio e na digestibilidade de extrato etéreo em poedeiras Lohmann LSL entre 16 e 25 semanas de idade. Foram avaliados quatro níveis de lisina digestível (0,6; 0,7; 0,8 e 0,9% da ração) utilizando-se 160 poedeiras durante o período de 16 até 25 semanas de idade. As dietas foram isonutritivas, com 17% de PB e 2.800 (pré-postura) e 2.750 kcal (pré-pico) EM/kg. O delineamento inteiramente casualizado foi adotado com quatro níveis de lisina digestível avaliados em quatro repetições. Os níveis de lisina digestível não influenciaram o ganho de peso, os consumos de ração e de proteína e energia, a idade ao primeiro ovo, a produção e o peso dos ovos, os índices de conversão alimentar, a massa do ovo e os balanços de nitrogênio e extrato etéreo. Houve aumento linear positivo do consumo de lisina de acordo com os níveis dietéticos de lisina digestível. Os níveis de lisina utilizados não interferem no desempenho nem no balanço de nutrientes. Sugere-se o uso de 0,6% de lisina por quilograma de ração. Palavras-chave: aminoácido essencial, consumo, frangas, produção de ovos Digestible lysine levels for Lohmann LSL hens 16 to 25 weeks of ageABSTRACT -In this experiment, the effects of digestible lysine levels on performance, nitrogen balance and fat digestibility in Lohmann LSL hens 16 to 25 weeks of age were evaluated. Four levels of digestible lysine (0.6, 0.7, 0.8 and 0.9% in ration) were assessed by utilizing 160 16-year-old laying hens 16 to 25 weeks of age. The diets were isonutritive with 17% CP and 2800 (pre laying) and 2750 (pre peak) kcal/kg. A completely randomized design was used with four lysine levels assessed in four replicates. The lysine levels did not influence weight gain, feed intake, protein and energy intake, age at first egg laying, egg production, egg weight, feed conversion indexes, egg mass, nitrogen balance or crude fat. There was positive linear increase on lysine intake according to the dietary levels of digestible lysine. Lysine levels do not influence the performance or the nutrients balance, and 0.6% of lysine per kilogram of feed is recommended.

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Effect of method and phase of nutrient restriction during rearing on productive performance of light hybrid pullets and hens

Cited by 26 publications

References 17 publications

Growth Performance of Kasila Broiler Parent Stock Reared on Quantitative Feed Restriction under Bangladesh Condition

Growth Performance of Kasila Broiler Parent Stock Reared on Quantitative Feed Restriction under Bangladesh Condition

Exigência De Metionina + Cistina Para Frangas De Reposição Na Fase Inicial (1 a 6 Semanas De Idade)

Níveis de lisina digestível para poedeiras Lohmann LSL na fase de 16 a 25 semanas de idade

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