Potential of using non-conventional animal protein sources for sustainable intensification of scavenging village chickens: A review

Ncobela, Cyprial Ndumiso; Chimonyo, M.

doi:10.1016/j.anifeedsci.2015.07.005

Cited by 27 publications

(26 citation statements)

References 27 publications

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“…). The cost of feed ingredients, especially protein ingredients, has continued to increase in the last few years (Ncobela & Chimonyo ; Stein et al . ).…”

Section: Introductionmentioning

confidence: 99%

“…Feed accounts for the greatest cost to the swine industry (Woyengo et al 2014). The cost of feed ingredients, especially protein ingredients, has continued to increase in the last few years (Ncobela & Chimonyo 2015;Stein et al 2016). Ammonia emission from intensive pig production is a major pollutant which has negative impact on the environment and humans (Aneja et al 2009;Barto s et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Supplementation of protease, alone and in combination with fructooligosaccharide to low protein diet for finishing pigs

Lei

Cheong

Park

et al. 2017

Animal Science Journal

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Effects of adding protease with or without fructooligosaccharide (FOS) to low protein diet on growth performance, nutrient digestibility and fecal noxious gas emission were evaluated in 160 finishing pigs (57.70 ± 1.16 kg) in a 9-week study. Pigs were randomly divided into four dietary treatments, PC: positive control diet (15.97% crude protein (CP)); NC: negative control diet (12.94% CP); PRO: NC supplemented with 0.05% protease; PROFOS: NC supplemented with 0.05% protease and 0.1% FOS. During weeks 4-9 and weeks 0-9, gain : feed ratio was impaired (P < 0.05) in pigs fed NC diet compared with those fed PC, PRO and PROFOS diets. Pigs fed PC, PRO and PROFOS diets had higher (P < 0.05) apparent total tract digestibility (ATTD) of CP than pigs fed NC diet. Pigs fed PROFOS diet had reduced (P < 0.05) ammonia emissions compared to pigs fed NC and PRO diets. These data indicate that reducing dietary CP concentrations impaired growth performance, decreased ATTD of CP and reduced ammonia emissions. Supplementation of protease in low CP diet improved growth performance and increased ATTD of CP. Dietary supplementation with protease and FOS in low CP diet improved growth performance, increased ATTD of CP and decreased fecal ammonia emission.

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“…). The cost of feed ingredients, especially protein ingredients, has continued to increase in the last few years (Ncobela & Chimonyo ; Stein et al . ).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Supplementation of protease, alone and in combination with fructooligosaccharide to low protein diet for finishing pigs

Lei

Cheong

Park

et al. 2017

Animal Science Journal

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“…This is more evident in broilers farming, which requires more dense diets with adequate balance of digestible AA. However, the intense use of soybean meal causes the poultry sector to depend on it, raising the production costs (Ncobela;Chimonyo, 2015). Therefore, the search for new protein feeds that can replace partially or completely soybean meal in diet formulation is needed.…”

Section: Introductionmentioning

confidence: 99%

Metabolizable energy and digestible amino acids of full-fat soybean without or with protease supplementation in diets for broilers

et al. 2016

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Two experiments were carried out to determine the energy values and the true ileal digestibility of amino acids of nine toasted full-fat soybeans (FFSB), without or with the addition of monocomponent protease. In the first experiment, to determine the energy values, the method of excreta collection was used with 1120 broiler chicks at 14 days old, distributed in randomized blocks in a 10x2 factorial arrangement with nine full-fat soybeans (30% included) plus a control diet (70%) without or with the addition of protease, totaling 20 treatments with 8 replicates and 7 birds per cage. In the second experiment, 1120 broiler chickens from 24 to 28 days of age were distributed in randomized blocks in a 10x2 factor arrangement, with nine full-fat soybeans (40% included) + a protein free diet (60%), without or with the addition of protease, totaling 20 treatments with 8 replicates and 7 birds per cage. Ileal digesta collection was used to determine the true digestibility coefficients and the digestible amino acid content of full-fat soybean. The average values of nitrogen-corrected apparent metabolizable energy (AMEn) and their respective metabolization coefficients (CAMEn) were 3207 kcal/kg and 62.57%, respectively. The average values of digestibility coefficients of crude protein and essential and nonessential amino acids were 86.79, 87.90 and 84.34%, respectively. The inclusion of protease improved (P<0.05) all evaluated parameters. Therefore, its use is recommended in diets containing full-fat soybeans for broiler chickens.Index terms: Digestibility coefficients; metabolizability; monocomponent enzyme. RESUMOForam realizados dois experimentos para determinar os valores energéticos e os coeficientes de digestibilidade ileal verdadeiros de aminoácidos de nove sojas integrais tostadas, sem ou com a adição de protease monocomponente. No primeiro experimento, para a determinação dos valores energéticos, foi utilizado o método de coleta total de excretas, com 1120 pintos de corte com 14 dias de idade, distribuídos em blocos casualizados, em arranjo fatorial 10x2, com nove sojas integrais (30% de inclusão) + uma ração referência (70%), sem ou com adição de protease, totalizando 20 tratamentos, com 8 repetições e 7 aves por gaiola. No segundo experimento foram utilizados 1120 frangos dos 24 aos 28 dias de idade, distribuídos em blocos casualizados, em arranjo fatorial 10x2, com nove sojas integrais (40% de inclusão) + uma ração isenta de proteína (60%), sem ou com adição de protease, totalizando 20 tratamentos, com 8 repetições e 7 aves por gaiola. A coleta da digesta ileal foi utilizada para determinar os coeficientes de digestibilidade verdadeiros e o teor de aminoácidos digestíveis da soja integral. Os valores médios de energia metabolizável aparente corrigida para balanço de nitrogênio (EMAn) e o seu respectivo coeficiente de metabolizabilidade (CEMAn) foram de 3207 kcal/kg e 62,57%, respectivamente. Os valores médios dos coeficientes de digestibilidade da proteína bruta e dos aminoácidos, essenciais e não essen...

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“…B esides reducing environmental pollution and production of quality fertiliser -biohumus, treatment of manure with various earthworm species provides significant quantities of a newly emerging feed i.e. worms (Ncobela and Chimonyo, 2015;Jacob, 2015). The production and demand for poultry meat is supposed to continue growing worldwide.…”

Section: Introductionmentioning

confidence: 99%

Carcass characteristics and meat quality of broilers fed on earthworm (Lumbricus rubellus) meal

Janković

Petrujkić

Aleksić

et al. 2020

J Hellenic Vet Med Soc

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The aim of the research was to evaluate the carcass characteristics and meat quality from chickens fed on diets in which fish meal was substituted with raw earthworms (Lumbricus rubellus) or earthworm meal. In the trial which lasted 42-days, 100 one-day-old Hybro broilers were divided into the control and three experimental groups. The control group was fed on standard broiler feed, the first (E-I) and the second experimental groups (E-II) were fed a diet in which 50% or 100% of fish meal was substituted with earthworm meal, respectively, whilst the third group (E-III) consumed feed without fish meal, but was given raw chopped earthworms ad libitum from day 1 to day 42. The replacement of fish meal with fresh earthworms resulted in significantly lower carcass weights in the E-III group in comparison with the control group (p<0.05). The differences in drumstick, thigh and breast meat share relative to the carcass mass were not significant (p>0.05). The lowest fat content in thigh and breast meat was in the group in which fish meal was replaced with earthworm meal. The lightness (L*) of thigh and breast meat was highest in the broilers fed fresh earthworms ad libitum. No significant differences in pH value were detected between the experimental groups (p>0.05). The most consumer acceptable were drumstick samples from E-II group and the least acceptable samples from the control group. Earthworm meal may be considered an adequate substitute for fish meal in broiler chickens’ diet since it does not impair the production performance, carcass yield and meat quality.

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Potential of using non-conventional animal protein sources for sustainable intensification of scavenging village chickens: A review

Cited by 27 publications

References 27 publications

Supplementation of protease, alone and in combination with fructooligosaccharide to low protein diet for finishing pigs

Supplementation of protease, alone and in combination with fructooligosaccharide to low protein diet for finishing pigs

Metabolizable energy and digestible amino acids of full-fat soybean without or with protease supplementation in diets for broilers

Carcass characteristics and meat quality of broilers fed on earthworm (Lumbricus rubellus) meal

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