Development of digestive enzymes in pigs with emphasis on lipolytic activity in the stomach and pancreas.

Jensen, Mette S.; Jensen, Søren Krogh; Jakobsen, K.

doi:10.2527/1997.752437x

Cited by 113 publications

(94 citation statements)

References 28 publications

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“…However, FFA constituted the major lipid fraction in feces for all treatments, suggesting that the absorption of FFA is the main limiting factor of fat absorption in weaning piglets. Several authors have attributed the decreased fat apparent absorption in the post-weaning period to insufficient secretion of bile (Jones et al, 1992), although others have also suggested a decreased secretion of lipases due to the adaptation of the pancreas to the new diet (Lindemann et al, 1986;Jensen et al, 1997).…”

Section: Digestibility Balancementioning

confidence: 99%

Use of re-esterified palm oils, differing in their acylglycerol structure, in weaning-piglet diets

Vilarrasa

Barroeta

Tres

et al. 2015

Animal

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Re-esterified oils are new fat sources obtained from chemical esterification of acid oils with glycerol (both economically interesting by-products from oil refining and biodiesel industries, respectively). The different fatty acid (FA) positional distribution and acylglycerol composition of re-esterified oils may enhance the apparent absorption of saturated fatty acids (SFA) and, thus, their overall nutritive value. The aim of the present study was to investigate the potential use of re-esterified palm oils, in comparison with their corresponding acid and native oils, and also with an unsaturated fat source in weaning-piglet diets. The parameters assessed were: FA apparent absorption, acylglycerol and free fatty acid (FFA) composition of feces, and growth performance. One-hundred and twenty weaning piglets (average weight of 8.50 ± 1.778 kg) were blocked by initial BW (six blocks) and randomly assigned to five dietary treatments, resulting in four piglets per pen and six replicates per treatment. Dietary treatments were a basal diet supplemented with 10% (as-fed basis) of native soybean oil (SN), native palm oil (PN), acid palm oil (PA), re-esterified palm oil low in mono-(MAG) and diacylglycerols (DAG) (PEL), or re-esterified palm oil high in MAG and DAG (PEH). Results from the digestibility balance showed that SN reached the greatest total FA apparent absorption, and statistically different from PN, PA and PEL ( P < 0.05). There were no statistical differences among palm-oil sources ( P > 0.05), but PEH achieved the greatest total FA apparent absorption. Animals fed PEL, despite the fact that PEL oil contained more sn-2 SFA, did not show an improved absorption of SFA ( P > 0.05). Animals fed PA and PN showed similar apparent absorption coefficients ( P > 0.05), despite the high FFA content of PA oil. The acylglycerol and FFA composition of feces was mainly composed of FFA. There were no significant differences in growth performance ( P > 0.05). Results of the present study suggest that, despite the different acylglycerol structure of re-esterified oils, there were no significant differences in digestibility or performance with respect to their corresponding PN and PA oils in weaning-piglet diets.

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Section: Digestibility Balancementioning

confidence: 99%

Use of re-esterified palm oils, differing in their acylglycerol structure, in weaning-piglet diets

Vilarrasa

Barroeta

Tres

et al. 2015

Animal

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show abstract

“…In addition, the fat is emulsified and it can be more easily digested in this form. Piglets lose this nutrition source at the moment of weaning and it is a question how to substitute it adequately (Jensen et al, 1997). Heugten and Odle (2000) considered insufficient digestibility to be the major problem of adding fats into feed mixtures for piglets.…”

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confidence: 99%

Influence of lecithin emulsifier on the utilisation of nutrients and growth of piglets after weaning

Daněk¹,

Paseka²,

Smola³

et al. 2005

CZECH J ANIM SCI

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ABSTRACT:The influence of supplementation of a lecithin emulsifier (0.1%) to the feed mixture for piglets after weaning was studied. 16 piglets in the control group (C -without lecithin) and 16 piglets in an experimental (E) group were monitored in three replications in a 28-day experimental period. We observed higher digestibility of monitored nutrients in the experimental group (crude fat: C = 66.28 ± 12.11, E = 69.75 ± 9.85%, crude protein: C = 78.72 ± 5.47, E = 82.17 ± 2.23%, crude fibre: C = 56.70 ± 12.85, E = 59.10 ± 12.04%, nitrogen free extract: C = 86.67 ± 3.32, E = 87.75 ± 3.00%, ash: C = 63.63 ± 11.59, E = 65.73 ± 10.35%). Statistically insignificantly higher daily average gain (C = 374.1 ± 107.0, E = 399.1 ± 104.7 g) of experimental groups and a lower feed conversion ratio (C = 2.285 ± 0.416, E = 1.768 ± 0.048 kg/kg) were found out. It was also confirmed in an additional field experiment (C = 279, E = 312 piglets from birth to 71 days of age) where average daily gain weight was 270 g in control and 290 g in experimental group. The influence of lecithin on the occurrence of haemolytic strains of Escherichia coli was not proved. This experiment confirmed a positive effect of the lecithin emulsifier supplement on the efficiency of piglets.

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“…O aumento crescente na atividade da amilase, à medida que o leitão ganha peso, pode ser explicado pela necessidade do animal em hidrolisar grandes quantidades de amido. Este resultado concorda com o obtido por JENSEN et al (1997), que verificaram incremento linear da amilase natural em relação ao peso vivo do animal.…”

Section: Resultsunclassified

Adição de enzimas exôgenas para leitões dos 10 aos 30 kg de peso

et al. 2000

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RESUMO -Três experimentos foram realizados para estudar o desempenho e a digestibilidade dos nutrientes e determinar os níveis de enzimas endógenas em suínos na fase de recria, alimentados com rações suplementadas com enzimas exógenas. A ração experimental foi constituída de milho, farelo de soja, vitaminas e minerais mais a adição de enzimas exógenas. A mistura consistiu de 25 g de enzima exógena por 100 kg de ração. A composição básica das rações foi 18,00% proteína bruta (PB) e 3400 kcal/kg de energia digestível (ED). No experimento 1, foram utilizados 160 leitões mestiços Landrace x Large White de 9,87±1,48 kg de peso vivo, distribuídos em cinco tratamentos (controle ou dieta basal; DB + amilase; DB + lipase; DB + protease; e DB + complexo de amilase, lipase e protease) e oito repetições; as variáveis estudadas foram consumo de ração diário médio (CRDM), ganho de peso diário médio (GPDM) e conversão alimentar (CA). No Experimento 2, foram utilizados 20 leitões machos castrados de 17,4±0,5 kg, mantidos em gaiolas metabólicas e em ambiente controlado; as variáveis estudadas foram ED, energia metabolizável (EM) e coeficiente de digestibilidade da proteína bruta (CDPB). Este experimento consistiu dos cinco tratamentos acima, com duas repetições. No Experimento 3, foram utilizados 30 leitões, com o objetivo de estudar os níveis de enzimas digestivas endógenas. O delineamento experimental utilizado nos três experimentos foi de blocos casualizados. Os resultados não revelaram efeitos da adição de enzimas exógenas sobre o CRDM e GPDM, porém, a adição de protease melhorou a CA em nível significante. Os resultados mostraram que a adição de enzimas exógenas também influiu no CDPB, apesar de não ter sido observada diferença para a digestibilidade da energia digestível. Os níveis de enzimas endógenas nos suínos não foram influenciados pela adição de enzimas exógenas, porém o peso dos animais influenciou os níveis de amilase e tripsina.Palavras-chave: alimentação, enzimas, desempenho, digestibilidade, leitões Addition of Exogenous Enzymes to Piglets from 10 to 30 kg Live weightABSTRACT -Three experiments were carried out to study the performance and digestibility of nutrients and to determine the endogenous enzyme level in grouving swines fed diets supplemented with exogenous enzymes. The experimental diets consisted of corn, soybean meal, vitamins and minerals plus the addition of exogenous enzymes. The mixtures consisted of 25 g of exogenous enzyme per 100 kg of diet. The basic composition of the diets were 18.00% of crude protein (CP) and 3400 kcal/kg of digestible energy (DE). In the experiment 1, 160 crossbred piglets Landrace x Large White with 9.87±1.48 kg LW were allotted to five treatments (control or basal diet; BD + amylase; BD + lipase; BD + protease, and BD + a complex of amylase, lipase and protease) and eight replicates, and the studied characteristics were the average daily feed intake (ADFI), average daily gain (ADG), and feed:gain (F:G) with eight replicates. In the experiment 2, 20 piglets with 17.4±0.5...

show abstract

Development of digestive enzymes in pigs with emphasis on lipolytic activity in the stomach and pancreas.

Cited by 113 publications

References 28 publications

Use of re-esterified palm oils, differing in their acylglycerol structure, in weaning-piglet diets

Use of re-esterified palm oils, differing in their acylglycerol structure, in weaning-piglet diets

Influence of lecithin emulsifier on the utilisation of nutrients and growth of piglets after weaning

Adição de enzimas exôgenas para leitões dos 10 aos 30 kg de peso

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