Total amino acid requirements of weaned piglets 8 to 25 kg live weight given diets based on wheat and soya-bean meal fortified with free amino acids

Gatel, F.; Buron, G.; Fékéte, J.

doi:10.1017/s0003356100036916

Cited by 16 publications

(11 citation statements)

References 14 publications

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“…Assuming 85% as an average of ileal lysine digestibility, these recommendations are in the scope of presented requirement data for 100 g daily protein deposition. Our reported lysine requirement data for piglets are also in line with several other studies (Gatel et al, 1992;Whittemore et al, 2003;Wecke and Liebert, 2009). For feed formulation, Bertolo et al (2005) recommended 0.91% ileal digestible lysine (24.1 kg BW; 982 g daily feed intake), which are in line with our data (85% predicted ileal lysine digestibility) and several other studies (Martinez and Knabe, 1990;Coma et al, 1995).…”

Section: Discussionsupporting

confidence: 93%

Lysine efficiency in piglet fed diets with a phytogenic feed additive and conclusion of lysine requirement data

Muhl¹,

Liebert²

2010

J. Anim. Feed Sci.

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Two experiments were conducted to examine effects of a commercial phytogenic feed additive (PFA), containing inulin, an essential oil mix (carvacrol, thymol), and chest nut meal (polyphenols) on nutrient digestibility, protein utilization, and lysine efficiency in piglets. Each experiment utilized sixteen piglets (male castrated, 8 wk) and four experimental groups. Experiment 1 studied graded levels of the PFA (0, 0.05, 0.1, 0.15%) in lysine limited diets (wheat, barley, soyabean meal, fish meal). Experiment 2 examined 0.1% of the PFA and two dietary levels of lysine. The results indicated that apparent nutrient digestibility, protein utilization, and lysine efficiency were not significantly affected by the PFA (P>0.05). Observed daily lysine requirements (7.3, 9.9 and 13.1 g for 76, 100, 124 g daily protein deposition) in growing barrows (20-30 kg body weight) were in line with recommendations and contribute to the limited database for modelling of lysine requirements in piglets.

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Section: Discussionsupporting

confidence: 93%

Lysine efficiency in piglet fed diets with a phytogenic feed additive and conclusion of lysine requirement data

Muhl¹,

Liebert²

2010

J. Anim. Feed Sci.

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“…Estes resultados estão próximos daqueles preditos pelo NRC (1998), para suínos de 10 a 50 kg, de 57, 64, 18, 67 e 55% para os mesmos aminoácidos, e os obtidos por Gatel et al (1992), ao trabalharem com leitões de 8 a 25 kg, de 58, 64 e 20% para a relação de metionina+cistina, treonina e triptofano e a lisina, respectivamente. Neste mesmo nível, a relação lisina:proteína total foi semelhante (6,6%) ao valor proposto pelo NRC (1998), de 6,4%, para leitões de 10 a 20 kg, mas foi inferior àquela observada por Gatel et al (1992), de 7,6%.…”

Section: Resultsunclassified

Níveis de lisina para leitoas selecionadas geneticamente para deposição de carne magra na carcaça, dos 15 aos 30 kg

Fontes¹,

Donzele²,

Oliveira³

et al. 2005

R. Bras. Zootec.

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RESUMO -Foram utilizadas 50 leitoas híbridas, com alto potencial genético para deposição de carne magra na carcaça e peso inicial e final de 15,39 ± 0,59 e 30,93 ± 1,72 kg, respectivamente, para avaliar diferentes níveis de lisina. O delineamento experimental foi o de blocos ao acaso, com cinco tratamentos, cinco repetições e dois animais por unidade experimental. Os tratamentos corresponderam a uma ração basal com 19% de proteína bruta, suplementada com cinco níveis de L-lisina HCl, resultando em rações com 0,95; 1,05; 1,15; 1,25; e 1,35% de lisina total. Observou-se que o ganho de peso e o consumo de lisina diário elevaram-se de forma linear com o aumento do nível de lisina da ração. Houve efeito quadrático dos níveis de lisina sobre o consumo de ração diário e a conversão alimentar, que melhorou até o nível de 1,26% de lisina total (0,365%/Mcal de ED) ou 1,13% (0,328%/Mcal de ED) de lisina digestível, correspondendo a um consumo estimado de lisina total e digestível de 14,62 g/dia e 13,12 g/dia, respectivamente. Não se observou efeito dos tratamentos sobre a porcentagem de proteína e de água na carcaça e os níveis de uréia no soro sangüíneo, entretanto, houve efeito quadrático sobre a porcentagem de gordura e a taxa de deposição de gordura na carcaça, que diminuíram até o nível de 1,25 e 1,18% de lisina, respectivamente. Observouse que a taxa de deposição de proteína elevou de forma linear com o aumento do nível de lisina na ração. Os níveis de lisina total que proporcionaram os melhores resultados de desempenho e qualidade de carcaça situaram-se entre 1,18 e 1,35%. Portanto, concluiu-se que a exigência de lisina total de leitoas dos 15 aos 30 kg é de 1,26% ou de 1,13% de lisina digestível, correspondendo a consumo estimado de lisina total e digestível de 14,6 e 13,1 g/dia, respectivamente.Palavras-chave: carcaça, exigência, fase inicial, genótipo, lisina, uréia Lysine Levels for Gilts with High Genetic Potential for Lean Gain from 15 to 30 kgABSTRACT -Fifty hybrid gilts, with high genetic potential for lean gain and initial and final weight of 15.39 ± 0.59 and 30.93 ± 1.72 kg, respectively, were used to evaluate diet with different levels of lysine. An experimental design of randomized blocks, with five treatments, five replicates and two animals per experimental unit, was used. The treatments corresponded to a basal diet with 19% crude protein, supplemented with five levels of HCl-L-Lisine, that resulted in diets with 0.95, 1.05, 1.15, 1.25 and 1.35% of lysine. The daily weight gain and daily lysine intake linearly increased with the dietary lysine level. There was quadratic effect of lysine levels on daily feed intake and feed/gain ratio, that increased to the lysine level of 1.26% (0.365%/Mcal of DE) or 1.13% (0.328%/Mcal of DE) of true digestible lysine, corresponding to the total and digestible lysine estimated intake of 14.62 and 13.12 g/day, respectively. There was no effect of treatments on protein and water percentage in carcass and on blood serum urea levels. The treatments influenced quadraticly t...

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“…The NRC (1998) dietary estimates for 5 to 10 kg pigs is approximately 1.35% total Lys or 1.19% standardized ileal digestible (SID) Lys, with the range of research estimates reported in NRC (1998) varying widely from 1.10 to 1.40% total Lys. Results of other experiments have indicated that the requirement for total Lys for 5 to 10 kg pigs is between 1.45 and 1.49% (Gatel et al, 1992;Broekman et al, 1997). In a more recent report, Dean et al (2007) suggested that 1.40% SID Lys is required for optimal growth of 6 to 12 kg pigs.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of standardized ileal digestible lysine requirement of nursery pigs from seven to fourteen kilograms

Nemechek

Gaines

Tokach

et al. 2012

Journal of Animal Science

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Four experiments were conducted to determine the standardized ileal digestible (SID) Lys requirement of pigs (Sus scrofa) from 7 to 14 kg. In Exp. 1, 294 pigs (6.8 kg BW) were used in a 28-d growth trial with 7 pigs per pen and 7 pens per treatment. Treatment diets were fed from d 0 to 14, and a common diet was fed from d 14 to 28. The 6 SID Lys levels tested were 1.15, 1.23, 1.30, 1.38, 1.45, and 1.53%. The diets were corn- and soybean-meal [Zea mays L. and Glycine max (L.) Merr.] based, with 10% spray-dried whey, 4.5% fish meal, and contained 3.37 Mcal of ME/kg. From d 0 to 14, ADG increased (quadratic, P < 0.001) as SID Lys increased from 1.15 to 1.30% with no further increase at greater levels. Gain:feed increased (linear, P < 0.001) with increasing SID Lys. Experiments 2 to 4 were 14-d growth trials with diets containing 1.22, 1.32, 1.42, 1.52, or 1.62% SID Lys. Diets were corn- and soybean-meal based with 3.45 Mcal of ME/kg. Soybean meal and lactose were constant in all diets at 30 and 7% of the diet, respectively. In Exp. 2, 840 pigs (7.6 kg BW) were used, with 24 pigs per pen and 7 pens per treatment. Increasing SID Lys from 1.22 to 1.42% increased (quadratic, P < 0.01) ADG and G:F with no further improvement observed in pigs fed the 1.52 or 1.62% SID Lys diets during d 0 to 14. In Exp. 3, 1,260 pigs (8.5 kg BW) were used with 42 pigs per feeder (2 pens per feeder) and 6 feeders per treatment. Increasing dietary Lys increased (quadratic, P < 0.02) ADG and G:F with the greatest response observed as SID Lys increased from 1.22 to 1.32% and, then, slight improvements with 1.42 and 1.52% during d 0 to 14. In Exp. 4, 770 pigs (7.4 kg BW) were used with 22 pigs per pen and 7 pens per treatment. Increasing SID Lys increased (quadratic, P = 0.05) ADG with pigs fed 1.32 and 1.42% SID Lys diets having the greatest BW gains during d 0 to 14. Increased SID Lys decreased (linear, P < 0.001) ADFI and increased (linear, P < 0.001; quadratic, P = 0.02) G:F. In conclusion, results of these experiments indicate that the 1998 NRC Lys recommendations (e.g., 1.19% SID Lys for 5 to 10 kg pigs) are less than required for optimal growth for 7 to 14 kg pigs. One-slope straight broken-line analysis indicated that the SID Lys requirement for optimal growth was at least 1.30% for ADG and 1.37% for G:F, or at least 3.86 and 4.18 g SID Lys/Mcal ME, respectively. Quadratic broken-line analysis indicated that the SID Lys requirement for optimal growth was at least 1.37% for ADG and 1.54% for G:F, or at least 4.19 and 4.92 g SID Lys/Mcal ME, respectively.

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Total amino acid requirements of weaned piglets 8 to 25 kg live weight given diets based on wheat and soya-bean meal fortified with free amino acids

Cited by 16 publications

References 14 publications

Lysine efficiency in piglet fed diets with a phytogenic feed additive and conclusion of lysine requirement data

Lysine efficiency in piglet fed diets with a phytogenic feed additive and conclusion of lysine requirement data

Níveis de lisina para leitoas selecionadas geneticamente para deposição de carne magra na carcaça, dos 15 aos 30 kg

Evaluation of standardized ileal digestible lysine requirement of nursery pigs from seven to fourteen kilograms

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