Effect of dietary lysine to crude protein ratio on performance of male Ross 308 broiler chickens

Ng’ambi, J. W.; Maoba, S; Norris, David O.; Malatje, M. S.; Mbajiorgu, C. A.

doi:10.1007/s11250-008-9148-z

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…The DM intakes of Brassica oleracea, Megathyrsus maximus and Musa paradisiaca were 51.17, 58.77 and 39.20% respectively of that of Stylosanthes guianensis when offered separately. The significantly higher DM intake of Stylosanthes guianensis in the two trials compared with those of the other forages might have been influenced by its higher crude CF content (24.77%) since dietary CF content influences DM intake [5]. The DM intake of forages can also be improved by wilting before feeding [2,17] as was in the present study thereby increasing nutrient intake to meet the requirements of rabbits.…”

Section: Bibliographymentioning

confidence: 73%

Intake and Palatability of Forages Fed to Rabbits in the Coastal Savannah Ecological Zone of Ghana

Doris Yaa,

Felix Owusu,

Eric Cofie

et al. 2023

Act Sci VetSci

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Brassica oleracea outer leaves, Stylosanthes guianensis, Megathyrsus maximus and Musa paradisiaca leaves were offered to mixedstrain rabbits in three trials. Thirty two weaner kits were used in each trial. In the first trial, the time of first bite and intake duration of the four forages offered together for 15 minutes were recorded. Weaners were randomly allocated to four groups, and kits in each group were offered one of the forage species separately with concentrate for three and seven days adaptation and testing periods respectively. Finally kits were offered the forages together. Brassica oleracea was bitten first (0.20 min) and had the highest intake duration (2.07 min). Brassica oleracea had the highest daily and relative intakes and was the most consumed when the forages were offered separately and together. Intake of the forages was followed by Stylosanthes guianensis, while Musa paradisiaca and Megathyrsus maximus were the least preferred forages in terms of quantities consumed. The study suggests that the first method, time of the first bite and intake duration of the forages, had a comparative advantage over the other methods in determining the preference of forages by rabbits in view of the shorter period required for the trial.

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Section: Bibliographymentioning

confidence: 73%

Intake and Palatability of Forages Fed to Rabbits in the Coastal Savannah Ecological Zone of Ghana

Doris Yaa,

Felix Owusu,

Eric Cofie

et al. 2023

Act Sci VetSci

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“…Optimum dig. Lys:CP ratios have been previously evaluated ( Ng'ambi et al, 2009 ), and results indicated that in each feeding phase, one ratio could optimize growth rate, FCR, and breast meat yield; however, the ratios can be different for each parameter and dig. Lys:TP ratio could be a better parameter to formulate these low-CP diets ( Alhotan and Pesti, 2016 ).…”

Section: Resultsmentioning

confidence: 99%

“…Lys: The TP ratio was calculated, but a similar ratio was expressed as a dig. Lys: CP, as others have used ( Ng'ambi et al, 2009 ) and using one ideal AA ratio. However, ideal AA ratios are probably different in low-CP diets ( Chrystal et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Multiprotease improves amino acid release in vitro, energy, and nutrient utilization in broilers fed diets varying in crude protein levels

Peñuela-Sierra,

Aragão-Neto,

Lozano-Cruz

et al. 2024

Poultry Science

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“…The reason may be that the chickens met their energy requirements at those levels and hence any additional energy content did not contribute much to the growth of the chickens (Mbajiorgu et al, 2011). Ng'ambi et al (2009) and Mbajiorgu et al (2011) reported that growth rates at starter and grower phases were optimal at different levels when chickens were fed varying lysine to crude protein and lysine to energy levels, respectively. b,c,d Means in the same row not sharing a common superscript are different (P <0.05).…”

Section: Resultsmentioning

confidence: 99%

Dietary energy level for optimum productivity and carcass characteristics of indigenous Venda chickens raised in closed confinement

Alabi¹,

Ng’ambi²,

Norris³

2014

SA J. An. Sci.

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A study was conducted to determine dietary energy levels for optimum productivity and carcass characteristics of indigenous Venda chickens raised in closed confinement. Four dietary treatments were considered in the first phase (1 to 7 weeks) on two hundred day-old unsexed indigenous Venda chicks indicated as EVS 1 , EVS 2 , EVS 3 and EVS 4 (11, 12, 13 and 14 MJ ME/kg DM, respectively) and each treatment was replicated five times. In the second phase (8 -13 weeks), 160 indigenous Venda female chickens, aged eight weeks, were randomly allocated to four dietary treatments and each treatment was replicated five times in a completely randomized design. The diets used in both trials were isonitrogenous but with different energy levels. A quadratic equation was used to determine dietary energy levels for optimum feed intake, growth rate, FCR and ME intake at both the starter and grower phases and the carcass characteristics of the birds at 91 days. Dietary energy levels of 12.91, 12.42, 12.34 and 12.62 MJ ME/kg DM feed supported optimum feed intake, growth rate, FCR and ME intake, respectively, for the starter phase. At the grower phase, dietary energy levels of 12.56, 12.66, 12.62 and 12.71 MJ ME/kg DM feed supported optimum feed intake, growth rate, FCR and ME intake, respectively. Carcass, drumstick, thigh and wing had optimum weights at dietary energy levels of 13.81, 13.23, 13.43 and 13.18 MJ ME/ kg DM, respectively. Thus, dietary energy level for optimization depended on the particular production parameter in question.

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Effect of dietary lysine to crude protein ratio on performance of male Ross 308 broiler chickens

Cited by 8 publications

References 15 publications

Intake and Palatability of Forages Fed to Rabbits in the Coastal Savannah Ecological Zone of Ghana

Intake and Palatability of Forages Fed to Rabbits in the Coastal Savannah Ecological Zone of Ghana

Multiprotease improves amino acid release in vitro, energy, and nutrient utilization in broilers fed diets varying in crude protein levels

Dietary energy level for optimum productivity and carcass characteristics of indigenous Venda chickens raised in closed confinement

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