Jansller Luiz Genova

Universidade Federal de Viçosa

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Paulo Levi de Oliveira Carvalho

Universidade Estadual do Oeste do Paraná

Silvana Teixeira Carvalho

Universidade Estadual do Oeste do Paraná

Paulo Evaristo Rupolo

Universidade Estadual do Oeste do Paraná

Liliana Bury de Azevedo

Universidade Estadual do Oeste do Paraná

Newton Tavares Escocard de Oliveira

Universidade Estadual do Oeste do Paraná

Leandro Batista Costa

Pontifícia Universidade Católica do Paraná

Ricardo Vianna Nunes

Universidade Estadual do Oeste do Paraná

Ana Lúcia Almeida Santana

Universidade Federal do Recôncavo da Bahia

Liliana Bury de Azevedo dos Santos

Universidade Estadual do Oeste do Paraná

Aparecida da Costa Oliveira

Universidade Estadual do Oeste do Paraná

Cooperative Institutions

Universidade Estadual do Oeste do Paraná

Universidade Estadual de Maringá

Pontifícia Universidade Católica do Paraná

Universidade Federal de Viçosa

Universidade Estadual do Paraná

Universidade Federal da Bahia

European Union of Medical Specialists

Universidade Estadual de Londrina

Universidade Estadual Paulista (Unesp)

Universidade Federal de Lavras

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Light intensity, blood fraction, fasting and storage time affect blood biochemical metabolites in broiler chickens

Semina Ciências Agrárias (2023)

Lucas Wachholz Jansller Luiz Genova Clauber Polese Jomara Broch Vaneila Daniele Lenhart Savaris

We determined the impacts of light intensity, blood fraction, fasting and storage time on glucose, cholesterol, triglycerides, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and gamma-glutamyl transferase (GGT) concentrations in 140 broiler chickens assigned to two light intensities (5 or 20 lux/m²) and seven fasting times (0, 2, 4, 6, 8, 10, and 12 h). The collected blood was fractionated into serum or plasma and stored at -20°C for 0, 15, 30, 60, and 120 days. Serum glucose concentrations declined linearly by 1.15 mg dL-1 every 2 h of fasting, whereas plasma glucose responded quadratically (minimum point at 8 h and 13 min of fasting). Serum ALT concentrations showed a quadratic effect, with a maximum point at 3 h and 46 min of fasting. Serum GGT concentrations were not influenced by fasting time, whereas plasma decreased by 1.60 IU L-1 at each 2 h of fasting. The AST concentrations were influenced by fasting. Storage times influenced the glucose concentrations in a quadratic manner, with maximum points in serum and plasma at 95 and 72 days, respectively. Serum cholesterol and triglyceride concentrations increased linearly with storage time. Storage time caused a quadratic response on serum ALT, with a maximum point at 32 days, whereas there was a minimum point at 93 days in plasma. Concentrations of GGT increased linearly with storage. Glucose, triglycerides, AST, and ALT concentrations were highest at 20 lux. Samples for AST analysis can be stored up to 120 days at -20°C. Serum glucose, cholesterol, triglyceride, ALT, and GGT analysis is indicated with a 6 h fasting time, without freezing. The light intensity should be specified.

Alanine aminotransferase

Blood plasma

10.5433/1679-0359.2023v44n6p2095

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Partial cholecalciferol replacement with 1,25-dihydroxycholecalciferol glycoside in diets for piglets

Animal Production Science (2022)

Heloíse Trautenmüller Jansller Luiz Genova Liliana Bury de Azevedo dos Santos Isabela Ferreira Leal Gleicianny de Brito Santos

Context Vitamin D supplementation plays a key role because its actions positively affect the animal’s overall health for optimal performance. Aims To assess partial cholecalciferol replacement with 1,25-dihydroxycholecalciferol glycoside for piglets on nutrient digestibility and daily balance of calcium and phosphorus, growth performance and blood metabolites. Methods To test digestibility, a total of 36 whole male piglets (18.79 ± 3.37 kg BW) were assigned in a randomised complete block design, with four treatments: (1) D3 (100% of the vitamin D supplemented with 1969 IU of cholecalciferol), (2) no supplemental sources of vitamin D (control), (3) D3 (50% of requirement + 0.375 μg of 1,25(OH)2D3 glycoside) or (4) 100% supplemented with 0.750 μg of 1,25(OH)2D3 glycoside. Nine replicates were performed, with one animal per experimental unit. For growth performance (Experiment II), a total of 128 whole male piglets (6.82 ± 0.38 kg BW) were distributed in a randomised complete block design, with four treatments: (1) 100% D3 (2707 IU in the pre-starter phase I, 2405 IU in the pre-starter phase II and 1969 IU in the starter phase), (2) 50% D3 + 0.25 μg of 1,25(OH)2D3 glycoside, (3) 25% D3 + 0.375 μg of 1,25(OH)2D3 glycoside or (4) 100% supplemented with 0.50 μg of 1,25(OH)2D3 glycoside. Eight replicates were conducted, with and four animals per experimental unit. Key results The apparent digestibility of nutrients and mineral balance were not influenced (P > 0.1). The results of Experiment II indicate effects (P < 0.1) of vitamin D supplementation on the growth performance evaluated during the nursery phase. Plasma calcium concentrations in the pre-starter II phase showed (P < 0.1) the highest concentration in the 50/50 treatment. Alkaline phosphatase showed (P < 0.001) a difference between treatments in the starter phase, with treatment 25/75 promoting the lowest plasma value. Conclusions Cholecalciferol or 1,25-dihydroxycholecalciferol glycoside resulted in similar digestibility and balance of calcium and phosphorus, even though the combination increased plasma calcium and alkaline phosphatase concentration in piglets. In addition, the partial replacement reduced the voluntary feed intake of piglets during nursery phase. Implications This investigation provided new information on partial cholecalciferol replacement with 1,25-dihydroxycholecalciferol glycoside in piglet starter as an alternative in post-weaning nutrition.

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10.1071/an21150

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Potential impacts of guava seed meal on piglet feeding as a dietary fibre alternative

Journal of Applied Animal Research (2021)

Juliana Stocco Martins Jansller Luiz Genova Isabela Ferreira Leal Keila Abadia Barbosa Liliana Bury de Azevedo dos Santos

The aim of this study was to determine the nutritional-energetic value of guava seed meal (GSM) for piglets in the starter phase and its effects on feed digestibility, growth performance, plasma parameter and diarrhea incidence. Assay I (digestibility testing) involved 16 entire male piglets with average initial body weight of 18.91 ± 1.36 kg were distributed in a randomized block design, allocated to two treatments with eight replications. Treatments consisted of a reference diet and a test diet with a 20% replacement by GSM. In assay II (performance testing), 128 entire male piglets and average initial body weight of 14.47 ± 2.09 kg were distributed in a randomized block design, with four treatments repeated four times in two blocks. Treatments consisted of increasing levels of GSM (0%, 5%, 10%, 15%). Values higher were found for glutamine and arginine. The high GE value of the GSM was reflected in an elevated AMCGE of the feed, with greater DM and CP digestibility. There was difference (P < 0.05) for average daily feed intake, feed conversion ratio, urea and diarrhea. In conclusion, GSM does not affect apparent nutrient digestibility, and it promotes greater feed intake up to 10% inclusion and 15% improves diarrhea incidence.

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Completely randomized design

10.1080/09712119.2021.1961780

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Additional effect of coated sodium butyrate 30% in the piglets feeding during the nursery phase

Semina Ciências Agrárias (2018)

Newton Tavares Escocard de Oliveira Paulo Levi de Oliveira Carvalho Jansller Luiz Genova Osíris Antunes de Caxias Eliseu Carlos Cristofori

In this study, the objective was to assess the growth performance, rectal microbiological profile, serum and immunological standards, and incidence of diarrhoea in piglets in the nursery phase fed diets with and without the addition of coated sodium butyrate 30% (SB). A total of 80 crossbred piglets (40 entire males and 40 females), with an average initial body weight of 9.47 ± 1.03 kg, were distributed in a randomised block design, with four treatments repeated twice in the two blocks and five piglets of the same gender per experimental unit. The treatments comprised a combination of two feeds, formulated based on corn and soybean meal with and without 0.1% SB inclusion as an additional product, and both genders, fed from of the pre-starter I diet. SB did not affect (p > 0.05) the growth performance and rectal microbiological profile of the piglets, but efficiently (p = 0.05) controlled the incidence of diarrhoea. The average values of the characteristics measured in the blood of the piglets were within the normal physiological parameters of the species. The inclusion of SB in commercial feed did not alter the growth performance and rectal microbiological profile of nursery piglets under low sanitary challenge conditions. However, the organic acid efficiently reduced gastrointestinal disorders that cause diarrhoea, with diarrhoea incidence rates of 2.68 and 4.46% for piglets fed with and without the inclusion of the additional organic acid, respectively.

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Sodium butyrate

Litter

10.5433/1679-0359.2018v39n6p2771

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Effect of endoparasites occurrence in sows from intensive production system

Figshare (2019)

Newton Tavares Escocard de Oliveira Paulo Levi De Oliveira Carvalho Jansller Luiz Genova Fábio Henrique Rodrigues Silveira Liza Ogawa

Abstract The goal of this study was to assess the effect of farm size (FS) and farrowing order (FO) on the occurrence of endoparasites eggs in commercial sows housed in maternity and gestation areas during the period from May to July 2014. Forty-three piglet production units were classified by FS: small (100 to 250 sows), medium (251 to 510 sows), large (511 to 1,000 sows) and very large (more than 1,000 sows). Sows were classified by FO: up to two, three to five or more than five parturitions. Faecal samples were processed using the simple flotation technique in a hypersaturated salt solution (30-35% NaCl). The results revealed that the overall prevalence of gastrointestinal endoparasites obtained in this study was 12.47%, in that 4.64% were positive for Ascaris suum, 0.56% for Trichuris suis and 8.27% for coccidia oocysts. The prevalence of endoparasites obtained for small and medium size farm, and for large and very large farm was 34.58% and 15.52%, respectively. In conclusion, the study shows that more than half of the farms were positive for A. suum and coccidia oocysts, but mainly for younger females. In general, sows with up to two parturitions and small farms showed a higher endoparasites percentage.

10.6084/m9.figshare.11267678

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Addition of different probiotics to commercial feeds for piglets during the nursery phase

Semina Ciências Agrárias (2019)

Newton Tavares Escocard de Oliveira Paulo Levi de Oliveira Carvalho Jansller Luiz Genova Eliseu Carlos Cristofori Fábio Henrique Rodrigues Silveira

In this study, we aimed to evaluate the effect of the addition of different probiotics to commercial diets for piglets on diet digestibility, total bacterial count (TBC) of faeces, Clostridium count and growth performance. In the digestibility assay, 24 entire male pigs with an average initial body weight of 18.8 ± 0.87 kg were housed individually in metabolism cages and distributed in a completely randomised experimental design; this consisted of three treatments (probiotic-free commercial feed; commercial feed with the addition of 0.2% probiotic containing a blend of microorganisms; commercial feed with the addition of 0.1% yeast-based probiotic Saccharomyces cerevisiae boulardii) and eight replicates. The digestibility of the feeds was determined. At the end of the experiment, 25 grams of faeces were collected for microbiological analysis. In the subsequent experiment, 150 crossbred piglets (entire males and females), weaned at 21 days of age and having an average initial body weight of 6.81 ± 0.71 kg were distributed in a randomised complete block design, with six treatments repeated twice in the first and thrice in the second block, totaling five replicates and five pigs per experimental unit. The treatments, arranged in a 3 x 2 factorial arrangement, consisted of a combination of the three experimental diets used in the digestibility test and two genders. The growth performance in the nursery was evaluated during the following phases: pre-starter I (21 to 29 days), pre-starter I and II (21 to 40 days) and the total period (21 to 63 days). There was an effect (p < 0.05) of the diets on the digestible protein and the logarithm of the TBC. There was no effect (p > 0.05) of the interaction or the diets on the growth performance of the pigs in any of the phases. Both in the entire experimental period and in the pre-starter I and II phases, male pigs presented better feed conversion (p < 0.05) than females. There was an improvement in the apparent digestibility of the crude protein of the feed when the pigs were fed commercial feed containing probiotics. Pigs fed commercial feed containing probiotics based on yeast Saccharomyces cerevisiae boulardii presented a reduced TBC in their faeces. Commercial feed containing probiotics did not influence the growth performance parameters of nursery phase piglets.

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Saccharomyces boulardii

10.5433/1679-0359.2019v40n3p1225

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Dehydrated cassava co-product in starting piglets feeding

Semina Ciências Agrárias (2017)

Davi Elias De Sá e Castro Paulo Levi De Oliveira Carvalho Newton Tavares Escocard de Oliveira Ricardo Vianna Nunes Jansller Luiz Genova

Two experiments were carried out to determine the nutritional value of a dehydrated cassava co-product (DCC) and its effects on the performance and blood variables of piglets fed with different levels of DCC. In experiment I, a digestibility assay was performed and 30 whole-male crossbred piglets with initial body weight of 18.00 ± 0.673 kg were housed individually in metabolism cages and distributed in a completely randomized experimental design with 5 treatments, 6 replicates and one animal per experimental unit. A reference diet was formulated to meet the category nutritional requirements and the different levels of DCC replacement (6, 12, 18 and 24%) were used to replace the reference diet and composed the treatments. In experiment II, 120 piglets (60 whole males and 60 females) were used, with initial body weight of 13.05 ± 1.59 kg, distributed in a randomized complete block design with 5 treatments, 6 replicates and 4 animals per experimental unit. Treatments consisted of five feeds with increasing inclusion levels (0, 3, 6, 9 and 12%) of the DCC. The feed based on corn and soybean meal were formulated to meet the recommended levels in starting piglets feeding. The data were submitted for statistical analysis and, when presenting significant difference, the averages were compared by the Dunnet’s test at 10 % significance. In the digestibility assay, the values of DCC’s digestive energy and metabolizable energy of 3,022 and 2,984 kcal kg -1 in natural matter, respectively, were found. There was no significant effect (p > 0.10) of inclusion levels of DCC on the final weight and daily gain of weight however we observed a quadratic effect (p < 0.10) of the DCC levels on daily feed intake and feed conversion. For the analysis of blood parameters, the results showed that there was no effect (p > 0.10) of DCC levels on glucose and blood urea in the different treatments. The use of the dehydrated cassava co-product can be an energetic alternative to piglets in starting phase and can be used up to 12 %.

Completely randomized design

10.5433/1679-0359.2017v38n4suplp2775

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Sample storage and fasting times affect blood serum and plasma components in fasted and non-fasted broiler chickens

The Journal of Applied Poultry Research (2025)

Clauber Polese Lucas Wachholz Cínthia Eyng Leandro Dalcin Castilha Jansller Luiz Genova

Affect

10.1016/j.japr.2025.100525

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Influence of light intensity, pre-harvest fasting, and storage time on biochemical components in serum and plasma of broilers

Revista Brasileira de Zootecnia (2025)

Clauber Polese Lucas Wachholz Cleison de Souza Nilton Rohloff Guilherme Luis Silva Tesser

Intensity

Light intensity

10.37496/rbz5420240117

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Blend of essential oils can reduce diarrheal disorders and improve liver antioxidant status in weaning piglets

Animal Bioscience (2022)

Maiara Ananda Grando V. C. N. COSTA Jansller Luiz Genova Paulo Evaristo Rupolo Liliana Bury de Azevedo

Objective: This study was to assess the effects of different doses of an essential oil blend (EOB) on growth performance, diarrhea occurrence (DO), hematological and blood biochemical profile, intestinal morphometry, morphology and microbiology, relative weight and length of organs, digestive content pH, and liver antioxidant status in weaning piglets.Methods: A total of 135 barrows (7.09±0.29 kg body weight) were allotted randomly in a randomized complete block design based on body weight with nine replications and three animals per pen. Dietary treatments were a negative control (NC): basal diet; positive control (PC): NC plus 125 mg performance-enhancing antibiotic (enramycin 8%)/kg diet; NC plus 100 mg EOB/kg diet (EO100); NC plus 200 mg EOB/kg diet (EO200); and NC plus 400 mg EOB/kg diet (EO400). Diarrhea occurrence was monitored daily, and performance at the end of each phase.Results: Gain to feed ratio was greater (p<0.05) in starter II pigs fed EO400 and EO200 than in those fed EO100. Pigs fed EO400 had lower (p<0.05) DO than those fed NC and EO100 in the total period. Pre-starter II pigs fed NC had (p<0.05) lower serum total protein and plasma protein than pigs fed PC. Pigs fed EO100 showed smaller (p<0.05) mean corpuscular volume (MCV) than pigs fed EO400. Starter II pigs fed EO400 had (p<0.05) greater MCV and lower mean corpuscular hemoglobin and erythrocytes than those fed EO100. There was a greater concentration (p<0.05) of band cells for PC, similar to EO400 and EO200. Performance-enhancing antibiotic and EOB to diets increased (p<0.05) liver superoxide dismutase activity.Conclusion: Adding 200 and 400 mg EOB/kg diet decreased DO and was advantageous to hematological and blood biochemical profile and liver antioxidant status without being detrimental to growth performance and gastrointestinal health in nursery pigs.

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Mean corpuscular hemoglobin

10.5713/ab.22.0072

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