Effect of dietary protein source and lysine:DE ratio on growth performance, meat quality, and body composition of growing-finishing pigs.

Szabo, C.; Jansman, A.J.M.; Babinszky, L.; Kanis, E.; Verstegen, M.W.A.

doi:10.2527/2001.79112857x

Cited by 60 publications

(49 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it is also important to consider that there was a high negative correlation between ME and CF, which may also explain this finding; the lower energy density of high CF diets necessitating a greater daily intake (Kyriazakis and Emmans, 1995). Improved feed efficiency, that is, lower FCR, was found for higher lysine and CP feed content, which is consistent with previous literature (Kyriazakis et al, 1991;Szabó et al, 2001). However, whether feed efficiency would be affected by feed CP content would depend on the basis the feed has been formulated; for example, one can lower the CP content of the feed, while maintaining the essential amino acid levels.…”

Section: Discussionsupporting

confidence: 89%

Animal and management factors influencing grower and finisher pig performance and efficiency in European systems: a meta-analysis

Douglas

Szyszka

Stoddart

et al. 2015

Animal

View full text Add to dashboard Cite

A meta-analysis on the effects of management and animal-based factors on the performance and feed efficiency of growing pigs can provide information on single factor and interaction effects absent in individual studies. This study analysed the effects of such factors on average daily gain (ADG), feed intake (FI) and feed conversion ratio (FCR) of grower and finisher pigs. The multivariate models identified significant effects of: (1) bedding ( P < 0.01), stage of growth ( P < 0.001) and the interaction bedding × lysine ( P < 0.001) on ADG. ADG was higher on straw compared with no bedding (710 v. 605 g/day). (2) FI was significantly affected by stage of growth ( P < 0.01), bedding ( P < 0.01), group composition ( P < 0.05), group size ( P < 0.01), feed CP content ( P < 0.01), ambient temperature ( P < 0.01) and the interaction between floor space and feed energy content ( P < 0.001). Pigs housed on straw had a lower FI in comparison with those without (1.44 v. 2.04 kg/day); a higher FI was seen for pigs separated by gender in comparison with mixed groups (2.05 v. 1.65 kg/day); FI had a negative linear relationship with group size, the CP content of the feed and ambient temperature. (3) Stage of growth ( P < 0.001), feed CP ( P < 0.001) and lysine content ( P < 0.001), ambient temperature ( P < 0.001) and feed crude fibre (CF) content ( P < 0.01) significantly affected FCR; there were no significant interactions between any factors on this trait. There was an improvement in FCR at higher ambient temperatures, increased feed CP and lysine content, but a deterioration of FCR at higher CF contents. For ADG, the interaction of bedding × lysine was caused by pigs housed without bedding (straw) having higher ADG when on a feed lower in lysine, whereas those with bedding had a higher ADG when on a feed higher in lysine. Interaction effects on FI were caused by animals with the least amount of floor space having a higher FI when given a feed with a low metabolisable energy (ME) content, in contrast to all other pigs, which showed a higher FI with increased ME content. The meta-analysis confirmed the significant effect of several well-known factors on the performance and efficiency of grower and finisher pigs, the effects of some less established ones and, importantly, the interactions between such factors.Keywords: efficiency, finishers, growers, meta-analysis, pigs ImplicationsThe effects of management and animal-based factors on daily gain, feed intake (FI) and feed efficiency of grower and finisher pigs were analysed. A number of factors were identified as having significant effects on these traits, including the effects of less well-established ones, such as the effects of grouping by gender on FI. Interactions between factors were also confirmed; for example, the interaction between bedding and feed lysine content on daily gain. The results may contribute towards the improvement of efficiency of pig systems through a better knowledge of the various factors that influence it. IntroductionFeed efficiency is one of the ...

show abstract

Section: Discussionsupporting

confidence: 89%

Animal and management factors influencing grower and finisher pig performance and efficiency in European systems: a meta-analysis

Douglas

Szyszka

Stoddart

et al. 2015

Animal

View full text Add to dashboard Cite

show abstract

“…Mitchaothai et al (2007) who fed pigs iso-energetic and iso-protein diets with diverse supply of fatty acids also found no influence of experimental treatment on the weight and chemical composition of the body, carcass and liver. Similar results were found by Szabó et al (2001), Kouba et al (2003), Nuernberg et al (2005), Osek and Milczarek (2005).…”

Section: Discussionsupporting

confidence: 79%

The influence of dietary fatty acids on their metabolism in liver and subcutaneous fat in growing pigs

Skiba¹,

Poławska²,

Raj³

et al. 2011

J. Anim. Feed Sci.

View full text Add to dashboard Cite

The aim of the study was to determine the influence of fatty acids sources on their metabolism in the liver and subcutaneous fat. Four iso-energetic and iso-protein diets with different ratio of PUFA/SFA and C 18:2 n-6/C 18:3 n-3 obtained by changing part of the diet energy with plant oils (linseed or rapeseed), tallow or fish oil, were given to pigs from 60 to 105 kg body weight (BW). Pigs were slaughtered at 105 kg BW. The content of fatty acids in the liver and subcutaneous fat per 100 g tissue and the activity (index) of Δ4-and Δ9-desaturase and elongase were determined. It was assumed that replacing part of energy of the diet with energy from different fatty acids of dietary oils will differ activity of enzymes in the investigated tissues and allow to determine in which the metabolism is more intense. Replacement of the part of the energy diets with energy from saturated (SFA), monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA), improved those feeds in the quantity/quality of these fatty acids and increased their proportional content, however, more in the subcutaneous fat than in the liver. Kind of diet had no influence on weight and fat content of the investigated tissues. Irrespective of the applied diet, a lower activity of ∆9-desaturase but higher activity of ∆4-desaturase and index of elongation were detected in the liver rather than in the subcutaneous fat. Results showed that they yield of elongation of the carbon chain of fatty acids and transformation of long-chain fatty acids is higher in the liver, however stronger transformations of SFA and MUFA take place in the subcutaneous fat.

show abstract

“…The estimated value of THE SID Ile level for high protein deposition was the same as that estimated for ADG (0.61%). Conversely, Szabo et al (2001) evaluated SID Ile levels for barrows from 30 to 105 kg and observed the best protein deposition at 0.95% SID Ile, i.e. higher than the level obtained in our study.…”

Section: Essential Amino Acids Ieaa (Mg/g Fpd Intake) Aidc (%)contrasting

confidence: 38%

Standardized ileal digestible (SID) isoleucine requirement of barrows (15- to 30- kg) fed low crude protein diets

Lazzeri

Castilha

Costa

et al. 2017

SCA

View full text Add to dashboard Cite

This study aimed to determine the SID isoleucine (Ile) requirement of starting barrows fed low crude protein. Two experiments were carried out. Experiment 1: Ten crossbred barrows were used in order to determine the SID AA of the basal diet (treatment with the lowest SID Ile level used in the growth performance experiment), averaging 15.00 ± 0.27 kg of initial weight, individually housed in metabolic cages and allotted in a complete randomized design, with two treatments, five replicates and one animal per experimental unit. Treatments consisted of a basal (14.13% CP and 0.450% of SID Ile) and a free protein diet. Experiment 2: A performance experiment was carried out to determine the SID Ile requirement when using low crude protein diets. Forty crossbred barrows were used, averaging 15.00 ± 0.87 kg of initial weight and distributed in a randomized block design with five treatments (0.450, 0.520, 0.590, 0.660 and 0.730% of SID Ile) and two animals per experimental unit. The average daily gain (ADG) (P=0.049) and protein deposition (P=0.01) were affected by the studied SID Ile levels. The daily need of SID Ile was estimated at 5.9 g when considering 0.61% as the optimum level of SID Ile in the diet for an improved ADG and protein deposition. Key words: Branched chain amino acids. Protein deposition. Standardized ileal digestibility. ResumoEste estudo teve como objetivo determinar a exigência de isoleucina digestível (Ile Dig) para leitões machos castrados, em fase inicial, alimentados com dietas de baixa proteína bruta. Foram realizados dois experimentos. Experimento 1: Dez leitões mestiços foram utilizados, a fim de determinar os aminoácidos digestíveis da dieta basal (tratamento com o nível mais baixo Ile Dig utilizado no experimento de desempenho), sendo a média de peso inicial dos suínos de 15,00 ± 0,27 kg, alojados individualmente em gaiolas metabólicas e distribuídos em delineamento inteiramente casualizado, com dois tratamentos, cinco repetições e um animal por unidade experimental.Os tratamentos consistiram de uma dieta basal (14,13% PB e 0,450% de Ile Dig) e uma dieta isenta de proteína. Experimento 2: Foi realizado um experimento de desempenho, para determinar a exigência de Ile Dig em dietas de baixa proteína bruta. Foram utilizados 40 suínos mestiços, machos castrados, com média de 15,00 ± 0,87 kg de peso inicial, os quais foram distribuídos em delineamento de blocos ao acaso, com cinco tratamentos (0,450; 0,520; 0,590; 0,660 e 0,730% de Ile Dig) e dois animais por unidade experimental. O ganho de peso diário (P = 0,049) e a deposição proteica (P = 0,010) foram afetados pelos níveis de Ile Dig estudados. As necessidades diárias de Ile Dig foram estimadas em 5,9 g quando considerado 0,61% como o nível ótimo de Ile Dig na dieta para um melhor ganho de peso diário e deposição proteica. Palavras-chave: Aminoácidos de cadeia ramificada. Deposição de proteína. Digestibilidade ileal estandarizada.

show abstract

Effect of dietary protein source and lysine:DE ratio on growth performance, meat quality, and body composition of growing-finishing pigs.

Cited by 60 publications

References 20 publications

Animal and management factors influencing grower and finisher pig performance and efficiency in European systems: a meta-analysis

Animal and management factors influencing grower and finisher pig performance and efficiency in European systems: a meta-analysis

The influence of dietary fatty acids on their metabolism in liver and subcutaneous fat in growing pigs

Standardized ileal digestible (SID) isoleucine requirement of barrows (15- to 30- kg) fed low crude protein diets

Contact Info

Product

Resources

About