The impact of genetic groups (Alentejano and F1 Landrace x Large White pigs) and body weight (90, 120 and 160kg) on blood metabolites

Bressan, Maria Cristina; Belo, A. T.; Amaral, Andreia J.; Cordeiro, Daniela; Boari, Cleube Andrade; Bettencourt, C. M. V.; Harten, S. van; Moreira, Olga; Gama, L. T.; Almeida, José

doi:10.1016/j.livsci.2021.104810

Cited by 3 publications

(4 citation statements)

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“…The FCR values observed for intact and castrated pigs were slightly lower than the ones reported by Freitas et al [ 39 ] and Martins et al [ 23 ], respectively. Although increasing in all the groups from ~40 to 160 kg, these ratios were different among groups, with the lowest value in IExp and the highest in C. The fact that castrated pigs presented higher FCR as well as higher carcass fat deposition (see below), as previously observed [ 41 ], agrees with the higher energy value of LW gain in fat when compared to lean tissues.…”

Section: Discussionsupporting

confidence: 84%

“…However, when comparing the experimental groups, urea levels were significantly lower in intact (I and IExp) than in C pigs, indicating a more efficient nitrogen use for lean tissue growth [ 43 ]. In obese breeds such as AL, high blood levels of urea [ 44 ] or triacylglycerols and cholesterol [ 41 , 45 ] are associated with increased fat deposition, as observed in the fatter C pigs in this trial (see below). Amino acids not used for body protein synthesis are deaminized and raise blood urea nitrogen, while their carbohydrate backbone is used for energy, contributing to adipose tissue accretion [ 45 ].…”

Section: Discussionmentioning

confidence: 87%

“…Amino acids not used for body protein synthesis are deaminized and raise blood urea nitrogen, while their carbohydrate backbone is used for energy, contributing to adipose tissue accretion [ 45 ]. The higher triacylglycerol levels in C pigs at ~160 kg may also be associated to increased food intake and to the consumption of diets rich in lipids or fast-absorbing carbohydrates [ 41 ], as observed during the fattening period. Therefore, differences in glucose and lipid metabolisms as well as protein metabolism seem to affect subcutaneous adipose tissue accretion in fat-type pigs [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

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Outdoor Finishing of Intact Male Portuguese Alentejano Pigs on a Sustainable High-Fiber Diet: Impacts on Blood, Growth, Carcass, Meat Quality and Boar Taint Compounds

Martins,

Varino,

Charneca

et al. 2023

Animals

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This trial evaluated the effect of sex on the blood, growth, carcass, meat quality, and boar taint compounds in male Alentejano (AL) pigs (n = 30). From ~40 to 130 kg LW, castrated (C) and intact pigs (I and IExp groups) were fed commercial diets ad libitum. Between ~130 and 160 kg (slaughter), C and I pigs continued on commercial diets, while IExp were fed an experimental diet containing locally produced pulses and by-products aimed at reducing boar taint. At ~160 kg, blood urea levels were higher in IExp than C pigs, triacylglycerols were lower in both intact groups, and cortisol was lower in IExp. IExp pigs exhibited faster growth, improved feed conversion ratio, carcass higher commercial yield and leaner meat than C pigs. The loin intramuscular fat in intact pigs was lower, less saturated and more polyunsaturated, while total collagen was higher. Fat androstenone content was higher in intact pigs and skatole content was similar across treatments, although they were below threshold values for consumer detection. Finally, although boar taint compounds were low in intact AL pigs raised outdoors, adding pulses and by-products to the experimental diet did not result in a reduction in fat skatole content compared to pigs fed the commercial diet.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

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Outdoor Finishing of Intact Male Portuguese Alentejano Pigs on a Sustainable High-Fiber Diet: Impacts on Blood, Growth, Carcass, Meat Quality and Boar Taint Compounds

Martins,

Varino,

Charneca

et al. 2023

Animals

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“…A previous study indicated that the metabolic differences among pigs with distinct genotypes can be monitored by blood parameters such as the concentration of metabolites and hormones [ 42 ]. Urea is produced proportionally to dietary protein levels and has been looked at as an indicator of protein metabolism [ 43 ]. In this study, the serum concentrations of BUN were increased in the two pig breeds upon HFD feeding, indicating an increase in protein breakdown (or decrease in protein deposition) [ 44 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Dietary Fiber on Growth Performance, Nutrient Digestibility and Intestinal Health in Different Pig Breeds

Luo

Kong

et al. 2022

Animals

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To explore the effect of dietary fiber on growth performance and intestinal health in different pig breeds, forty Taoyuan and Duroc pigs (pure breeds) of 60 days of age were randomly divided into a 2 (diet) × 2 (breed) factorial experiment (n = 10), and fed with a basal diet (BD) or high-fiber diet (HFD). The trial lasted for 28 d, and results showed that the Taoyuan pigs had a higher average daily feed intake (ADFI) than the Duroc pigs (p < 0.05). The average daily gain (ADG) and digestibilities of gross energy (GE) and crude protein (CP) were higher in Taoyuan pigs than in the Duroc pigs under HFD feeding (p < 0.05). The HFD increased the superoxide dismutase (SOD) and catalase (CAT) activity in Taoyuan pigs (p < 0.05). Interestingly, Taoyuan pigs had a higher jejunal villus height and ratio of villus height to crypt depth (V/C) than the Duroc pigs. The HFD significantly improved the villus height and V/C ratio in duodenum and jejunum (p < 0.05). The HFD also increased the jejunal maltase and ileal sucrase activities in Duroc and Taoyuan pigs, respectively (p < 0.05). Taoyuan pigs had a higher expression level of duodenal fatty acid transport protein-1 (FATP-1) than the Duroc pigs (p < 0.05). Furthermore, the HFD acutely improved the expression levels of ileal SGLT-1 and GLUT-2, and the expression levels of jejunal occludin and claudin-1 in Taoyuan pigs (p < 0.05). Importantly, Taoyuan pigs had a higher colonic Bifidobacterium abundance than the Duroc pigs (p < 0.05). The HFD not only elevated the colonic Lactobacillus abundance and butyrate acid content in Taoyuan pigs, but also increased the acetic and propionic acid contents in both the pig breeds (p < 0.05). These results indicated a difference in dietary fiber (DF) utilization by the two pig breeds, and results may also suggest a beneficial character of DF in regulating intestinal health.

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Effects of agronomical selenium biofortification of Iberian pig diet on quality and antioxidant capacity of pork

Hernández-García,

Matías,

López-Parra

et al. 2024

Livestock Science

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The impact of genetic groups (Alentejano and F1 Landrace x Large White pigs) and body weight (90, 120 and 160kg) on blood metabolites

Cited by 3 publications

References 42 publications

Outdoor Finishing of Intact Male Portuguese Alentejano Pigs on a Sustainable High-Fiber Diet: Impacts on Blood, Growth, Carcass, Meat Quality and Boar Taint Compounds

Outdoor Finishing of Intact Male Portuguese Alentejano Pigs on a Sustainable High-Fiber Diet: Impacts on Blood, Growth, Carcass, Meat Quality and Boar Taint Compounds

Effects of Dietary Fiber on Growth Performance, Nutrient Digestibility and Intestinal Health in Different Pig Breeds

Effects of agronomical selenium biofortification of Iberian pig diet on quality and antioxidant capacity of pork

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