Alex Maiorka

Universidade Federal do Paraná

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Simone Gisele de Oliveira

Universidade Federal do Paraná

Ananda Portella Félix

Universidade Federal do Paraná

Fabiano Dahlke

Universidade Federal de Santa Catarina

E. L. Krabbe

Brazilian Agricultural Research Corporation

Elizabeth Santín

Universidade Federal do Paraná

Leopoldo Malcorra de Almeida

Universidade Federal do Paraná

Lucas Schmidt Bassi

Universidade Federal do Paraná

Tabyta Tamara Sabchuk

Universidade Federal do Paraná

Chayane da Rocha

Universidade Federal do Paraná

D. Surek

Concordia University Wisconsin

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Universidade Federal do Paraná

163

Universidade Estadual Paulista (Unesp)

Universidade de São Paulo

Universidade Federal do Rio Grande do Sul

Universidade Federal de Minas Gerais

Brazilian Agricultural Research Corporation

Universidade Federal de Santa Maria

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Núcleo de Pesquisas Aplicadas (Brazil)

Universidade Estadual do Oeste do Paraná

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Guanidinoacetic acid: how can sows benefit from this novel feed additive

Energy and protein metabolism and nutrition (2019)

Josiane C Panisson B.A.N. Silva Simone Gisele de Oliveira Alex Maiorka Alcinei Místico Azevedo

Guanidinoacetic acid (GAA) is an amino acid derivative and natural precursor of creatine. Creatine is synthesized from GAA in the liver, which in turn is synthesized from arginine and glycine in the kidney. Because GAA is the direct precursor of creatine, GAA should also be capable of sparing arginine and improving energy efficiency of gestating and lactating sows. The aim of the present study was to evaluate the impact of dietary supplementation of GAA during gestation and lactation on the performance and milk amino acid profile of high-prolific sows. A total of 180 sows (120 multiparous and 60 gilts) were distributed in a completely randomized experimental design among 2 dietary treatments during gestation and afterwards in a factorial 2×2 experimental design according to previous gestation treatment and the use or not of GAA during lactation. The treatments improved total number of born alive in gilts, whereas animals receiving GAA showed a higher number of total born and piglets born alive. Although gilts improved number of born, still within litter birth weight variation was not influenced by treatments. GAA supplementation improved litter daily gain, average litter and piglet weaning weight and estimated daily milk production. The use of GAA during lactation also increased milk amino acid profile on d 7 of lactation, whereas amino acids such as lysine, methionine, arginine, valine and glutamine showed higher levels. The use of GAA during gestation is highly effective for gilts, and during lactation improves both multiparous and gilt performance and increased piglet growth rates.

10.3920/978-90-8686-891-9_31

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Dietary inclusion of symbiotic in post weaning piglets with nutritional challenge.

Archives of Veterinary Science (2017)

Leopoldo Malcorra de Almeida Josiane C Panisson Alexandra Bonardi Andréia Massuquetto Alex Maiorka

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Thermal processing of corn and physical form of broiler diets

Poultry Science (2020)

Andréia Massuquetto J.F. Durau Lucas Newton Ezaki Barrilli Ronan Omar Fernandes dos Santos E. L. Krabbe

This study aimed to assess the effect of preprocessing of corn and of physical form of diets on growth performance, carcass yield, and nutrient digestibility in broilers and also the influence of corn processing on pellet quality. A total of 1,080 male Cobb chicks from 1 to 35 D were evaluated. Birds were distributed according to a completely randomized design in a 3 × 2 factorial arrangement, with 3 types of corn processing (unprocessed, pelleted, or expanded), and 2 diet physical forms (mash or pelleted), totaling 6 treatments and 9 replicates with 20 birds. The data were submitted to ANOVA, and means were compared by Tukey's test (P < 0.05). There was no interaction between the physical form and preprocessing of corn for any of the studied variables (P > 0.05). The use of expanded corn in the diets before pelleting resulted in higher pellet durability index and lower amount of fines (P < 0.05) when compared with unprocessed corn. Broilers fed pelleted diets had higher feed intake (FI) and weight gain (WG; P < 0.001), higher amounts of abdominal fat (P < 0.05), and lower ileal digestible energy (IDE, P = 0.05) than those fed mash. There was no effect of the feed form on nutrient digestibility (P > 0.05). Broilers fed diets with unprocessed corn had higher FI when compared to those fed diets with expanded or pelleted corn (P < 0.001). The use of pelleted corn resulted in lower WG than the other processing methods (P < 0.01). The corn expansion process improved feed conversion ratio and adjusted feed conversion ratio (P < 0.001). Inclusion of expanded corn improved the coefficient of apparent ileal digestibility of DM, CP, starch, and IDE (P < 0.05) in comparison with unprocessed corn. It is concluded that pelleted diets improve broiler performance. The corn expansion can be used to improve physical quality of the diets and broilers growth performance and nutrient digestibility.

Pellet

Abdominal fat

Completely randomized design

10.1016/j.psj.2020.01.027

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Citations (15)

The effect of thermal processing and physical form of pig’s diet

Archives of Veterinary Science (2022)

Geovani Costa Senger Leopoldo Malcorra de Almeida Vitor Augusto Bernardini Zavelinski Katiucia Cristine Sonálio Isabella De Camargo Dias

10.5380/avs.v27i3.79662

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Fatores que regulam o consumo e a preferência alimentar em cães

Scientia agrária paranaensis/Revista scientia agrária paranaensis (2016)

Carolina Pedro Zanatta Ananda Portella Félix Simone Gisele de Oliveira Alex Maiorka

Food intake is ruled by intrinsic and extrinsic factors to the animal, with complex interaction between them. Although dogs are able to ingest the required amount to satisfy their daily energy demand, when offered a highly palatable food, the regulation capacity is affected due to this interaction. The most widely accepted theories related to the regulation of food intake in dogs are the chemical theory (level of energy and nutrients in the body) and physical theory (gastric distension), which act as the food eaten. It is extremely important to be aware of such factors to ensure the adequate food intake by the animals, preserving and maintaining health. Testing of food intake and preference are commonly performed in experiments with dogs trying to evaluate the factors that affect the food preference of the animals, in particular as regards the addition of flavors. However, tests of food intake and preferences have no scientific basis. Thus, due to the lack of information and adoption of questionable procedures, it is necessary to standardize them. Therefore, this review aims to address the factors that regulate food intake and preference, as well as the importance of knowing them to ensure healthy nutrition for dogs.

Food preference

Food Choice

Affect

Animal food

10.18188/sap.v15i2.13721

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Efeito da lincomicina como aditivo melhorador de desempenho sobre a incidência de diarreia e o desempenho de leitões na fase de creche

Revista Acadêmica Ciência Animal (2016)

Alanna Cordeiro Ramos Adni Milanezi Leandro Batista Costa Camila Demarco Maito Antônio Diego Brandão Melo

O desmame impõe um estresse significativo na vida dos leitões, caracterizado por uma alta incidência de distúrbios intestinais e depressão do crescimento em leitões. Esse baixo desempenho associado ao desmame em suínos é resultado de um estresse multifatorial, incluindo estresse ambiental, nutricional e psicológico. Dessa forma, é comum a inclusão de antimicrobianos na ração, utilizados como aditivos melhoradores de desempenho, para leitões na fase pós-desmame. O objetivo deste estudo foi avaliar o efeito da adição de lincomicina na ração sobre a incidência de diarreia e desempenho em leitões na fase de creche. Para isso, foram utilizados 60 leitões recém-desmamados, os quais foram divididos em dois tratamentos, cada qual composto por dez repetições de três animais: grupo controle (ração sem antimicrobiano) e grupo lincomicina(ração com 22 mg/kg de lincomicina). O peso dos animais foi verificado ao início do experimento e utilizado para distribuí-los igualmente nas diferentes repetições de todos os tratamentos. Semanalmente,durante cinco semanas, o consumo diário de ração, o ganho de peso diário e a conversão alimentar dos suínos foram avaliados. As fezes foram monitoradas diariamente, com a atribuição de escores relacionados à consistência das mesmas. Os resultados demonstraram que a lincomicina, utilizada como aditivo melhorador de desempenho, não apresentou efeito sobre os parâmetros de desempenho avaliados. No entanto, a lincomicina reduziu significativamente a incidência de diarreia em leitões na fase de creche.

10.7213/academica.14.2016.14

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Application of Splitting (Cross Validation) Technique and Herzberg Equation in Feed Pellet Quality Prediction Models

Journal of Agricultural Science and Technology A (2024)

Keysuke Muramatsu Alex Maiorka

Pellet

10.17265/2161-6256/2024.05.001

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Effect of Selenium Supplementation in Broiler Diets on Breast Meat Deposition

Figshare (2021)

Vivian Izabel Vieira J.F. Durau V.G. Schramm Lucas Schmidt Bassi SG Oliveira

ABSTRACT The objective of the study was to evaluate the deposition of selenium in the breast muscle of broilers fed different selenium sources during different periods. Two experiments were carried out with broilers fed 45% sodium selenite (SS) or 2% hydroxy-selenomethionine (HSM) to determine the selenium deposition rate in the muscle tissue. In Experiment 1, 48 broilers were distributed in a completely randomized design with six treatments with eight replicates each, consisting of diets containing 0 Se (0), 200 or 400 µgSS/kg (200 SS, 400 SS), or 100, 200, or 300 µgHSM/kg (100 HSM, 200 HSM, 300 HSM) for 10 days. The highest Se breast content was obtained with 300 HSM diet, followed by 200 SS diet compared to the other treatments. Experiment 2 had a completely randomized design following a plot scheme subdivided in time, and consisted of a basal diet supplemented with 300 µg SS/kg (300 SS), basal diet with 200 µg HSM/kg (200 HSM) or basal diet supplemented with 100 µgSS/kg and 100 µgHSM/kg (100 SS+100 HSM). Dietary Se sources did not influence Se breast content measured on days 3 and 6. However, on days 9 and 12, higher Se breast contents were measured in broilers fed 200 HSM and 100 SS+100 HSM diets compared with those fed 300 SS diet. In conclusion, the supplementation of broiler diets with HSM at 2% for a short period is more efficient to increase selenium deposition in the breast muscle than sodium selenite.

Deposition

10.6084/m9.figshare.14306586

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Evaluation of the use of probiotics in diets with or without growth promoters for broiler chicks

Revista Brasileira de Zootecnia (2010)

Régis Fernando Pastorelo Meurer Paula Carvalho Leal Chayane da Rocha I. J. M. Bueno Alex Maiorka

This work was carried out to evaluate the use of Bacillus subtilis probiotic C-3102 (10(10)cfu/g) in diets with or without growth promoters on the performance of broilers in the period from 1 to 42 days of age. It was used 1,200 Cobb line broilers, distributed in a complete randomized block with five diets: negative controller (without promoters); Bacillus subtilis (30 g/t ration); Bacillus subtilis (50 g/t ration); Bacillus subtilis (30 g/t ration) + colistin (10 ppm); avilamycin (10 ppm) + colistin (10 ppm). Each diet was evaluated in 10 repetitions with 24 birds. From 21 to 42 days of age, feed intake, weight gain and feed conversion were evaluated, and at 42 days of age, productive efficiency index was evaluated. At the end of the experimental period, it was observed an increase in the consumption of diet with the lowest dose of Bacillus subtilis (30 g) in relation to that one with Bacillus subtillis (30 g) + colistin (10 ppm). The values of weight gain obtained with the diet with the lowest dose of Bacillus subtillis (30 g) and with avilamycin (10 ppm) + colistine (10 ppm) were higher than those of the birds fed control diet (without promoters). For feed conversion, the best results were obtained by supplying diets containing 50 g of Bacillus subtillis, diet with 30 g of Bacillus subtillis + 10 ppm of colistin; and diet with 10 ppm of avilamycin + 10 ppm colistin. For the analysis of productive efficiency index, the best results were obtained with diets containing additives (probiotics and/or antibiotics) in comparison to the control diet. Bacillus subtillis C-3102 probiotic, at concentration 10(10) cfu/g, is an efficient substitute of antibiotics.

10.1590/s1516-35982010001200019

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Effects of processing and the physical form of diets on digestibility and the performance of nursery piglets

DOAJ (DOAJ: Directory of Open Access Journals) (2017)

Kelly Mazutti E. L. Krabbe D. Surek Alex Maiorka

10.5433/1679-0359.2017v38n3p1575

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