6 results on '"Lago, Rafael Vinicius Pansera"'
Search Results
2. Effects of Dietary Guanidinoacetic Acid on the Performance, Rumen Fermentation, Metabolism, and Meat of Confined Steers.
- Author
-
Giraldi, Gabrielly Chechi, Wolschick, Gabriel Jean, Signor, Mateus Henrique, Lago, Rafael Vinicius Pansera, de Souza Muniz, Ana Luiza, Draszevski, Taynara Monica Reginatto, Balzan, Manoela Meira, Wagner, Roger, and da Silva, Aleksandro Schafer
- Subjects
SHORT-chain fatty acids ,UNSATURATED fatty acids ,CATTLE nutrition ,BUTYRIC acid ,AMINO acid derivatives ,RUMEN fermentation - Abstract
Simple Summary: Guanidinoacetic acid (GAA) is a natural derivative of amino acids. They are acted upon by enzymes in the liver and transformed into essential components of the energy metabolism of muscle and nervous tissue. Although the animal synthesizes creatine, the amount is less than necessary for high growth rates, according to researchers. GAA consumed by cattle reduces fat between muscle fibers and serum cholesterol. It has a mild but positive effect on the fatty acid profile of meat—i.e., it increases myristoleic, linoleic, and arachidonic acids. We also concluded that GAA consumption increases the amount of volatile fatty acids in the rumen, especially acetic, propionic, and butyric acid. We draw attention to the acetic acid related to lipid synthesis. With the increase in population, it is increasingly necessary to produce food more efficiently. This has expanded the market for additives, which are products that directly (nutritional effect) or indirectly (effect on animal health) favor productivity. Guanidinoacetic acid (GAA) is a natural precursor of creatine. It acts as an energy reserve in skeletal muscle. In addition to being a compound with more significant bioavailability, it is more thermally stable and less expensive than creatine. Therefore, this study aimed to determine whether adding GAA to the cattle diet would alter the meat's composition and fatty acid profile. We used 24 Holstein cattle males (409 ± 5.6 kg), approximately 15 months old, and separated them into four homogeneous groups, one being the control group and three groups with various dosages of GAA in the diets (3.3; 6.6, and 9.9 g/animal/day), for an experimental period of 60 days. Blood, rumen fluid, and animal weighing were performed at three points (days 1, 30, and 60), and daily feed consumption was measured. Steers fed with GAA (9.9 g/d) showed a 16.9% increase in average daily gain (ADG) compared to the control group. These same animals (T-9.9 group) fed with GAA showed a 20% increase in fed efficiency compared to the control group. Lower leukocyte, lymphocyte, and granulocyte counts and lower cholesterol levels were observed in animals that consumed 6.6 g and 9.9 g/d GAA compared to the control group. Animals from the T-6.6 and T-9.9 groups showed 30% and 27.6% reduced bacterial activity in the rumen compared to the control group, respectively. Steers from the T-6.6 and T-9.9 groups fed with GAA showed a 20% and 37% increase in short-chain fatty acids (SCFAs) compared to the control group, respectively. A higher concentration of acetic, propionic, and butyric acids in the ruminal fluid of cattle T-9.9 group was observed at day 60. The two highest doses of GAA showed lower fat levels in the meat, just as the cattle that received 9.9 g/d showed higher levels of total polyunsaturated fatty acids. Complementary data results draw attention to the dose of 9.9 g/d GAA in cattle diets, as anti-inflammatory action can be seen and combined with a higher concentration of SCFAs, consequently increases weight gain. We concluded that consuming this GAA increases the concentration of some unsaturated fatty acids (omegas) in the meat, which adds quality to the product for the consumer. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Homeopathic immunological for dairy calves and its effects on metabolism, immune reactions, serum antioxidant responses, and growth performance
- Author
-
Vitt, Maksuel Gatto de, primary, Nascimento, Aline Luiza do, additional, Lago, Rafael Vinicius Pansera, additional, Carvalho, Raissa Alves de, additional, Pereira, Wanderson A. B., additional, and Silva, Aleksandro Schafer da, additional
- Published
- 2022
- Full Text
- View/download PDF
4. Los prebióticos solos o combinados con probióticos tienen un efecto positivo en la digestibilidad de la materia orgánica, el rendimiento y la respuesta inmunológica y antioxidante de los terneros después del destete
- Author
-
Lago, Rafael Vinicius Pansera, Vitt, Maksuel Gatto de, Brunetto, Andrei L. R., Bissacotti, Bianca F., Copetti, Priscila M., Carvalho, Raissa A., Pereira, Wanderson A. B., Solivo, Gabriela, Zotti, Claiton A., Vedovatto, Marcelo, and Silva, Aleksandro Schafer Da
- Subjects
Dairy calves ,Prebiótico ,Prebiotic ,Probiótico ,Terneros lecheros ,Symbiotic ,Simbiótico ,Probiotic ,Bezerros leiteiros ,Prébiótico - Abstract
The aim of this study was to evaluate whether the addition of a combination of probiotics (PROB) and prebiotics (PREB) or both alone in the diet of Holstein calves after lactation has a positive effect on the immune and antioxidant response capable of favoring the animal's growth. Eighteen Holstein animals (79.2 kg and 70 days old), housed in individual pens for 92 days were used here, and divided into three treatments: PROB (n=6), PREB (n=6) and PROB+ PREB (n=6). The consumption of PREB and the association PREB+PROB generated a gain in body weight about 10% more than PROB. In the blood count, the only change was the treatment x day interaction for monocyte counts, being higher on days 63 and 92 in the blood of the PREB and PROB animals, respectively, compared to the other groups. The PREB + PROB association from day 63 increased the activity of the glutathione S-transferase enzyme by 14% when compared to the consumption of only PREB, in addition to reducing the levels of TBARS in the blood by 35%. Furthermore, the association of PREB+PROB reduced by 12.5% and 16.2% the concentration of serum urea in relation to PREB and PROB, respectively. Animals in the PREB+PROB group had higher serum IgA levels compared to the PROB, contrary to what happened with the heavy chain IGG levels, that is, it was higher in the PROB compared to the PREB+ PROB association. On day 63, lower levels of haptoglobin were observed in PREB compared to the other groups. On day 92, lower levels of transferrin and acid glycoprotein were observed in the blood of animals that consumed PREB+PROB. Also on day 92, serum ceruplasmin levels in PROB were higher than in PREB animals. A higher of apparent digestibility coefficient (ADC) of organic matter (OM) was observed when the animal’s consumed prebiotic compared to probiotic, and the association of both did not differ from the two treatments for ADC of OM. The results allow us to conclude that the PREB+PROB association was important to minimize the physiological oxidative stress, as well as to raise the serum levels of IgA, an important mucosal immunoglobulin at the level of the digestive system; in addition, the combination of physiological results of prebiotic consumption alone or in combination reflected in greater weight gain in calves. El objetivo de este estudio fue evaluar si la adición de una combinación de probióticos (PROB) y prebióticos (PREB) o ambos solos en la dieta de terneros Holstein después de la lactancia tiene un efecto positivo sobre la respuesta inmunológica y antioxidante capaz de favorecer la salud del animal. crecimiento. Se utilizaron dieciocho animales Holstein (79,2 kg y 70 días de edad), alojados en corrales individuales durante 92 días, divididos en tres tratamientos: PROB (n=6), PREB (n=6) y PROB+ PREB (n=6) . El consumo de PREB y la asociación PREB+PROB generó una ganancia de peso corporal de alrededor de un 10% más que PROB. En el hemograma, el único cambio fue la interacción tratamiento x día para el conteo de monocitos, siendo mayor en los días 63 y 92 en la sangre de los animales PREB y PROB, respectivamente, en comparación con los otros grupos. La asociación PREB + PROB a partir del día 63 aumentó la actividad de la enzima glutatión S-transferasa en un 14 % en comparación con el consumo de solo PREB, además de reducir los niveles de TBARS en sangre en un 35 %. Además, la asociación de PREB+PROB redujo en un 12,5% y 16,2% la concentración de urea sérica en relación a PREB y PROB, respectivamente. Los animales del grupo PREB+PROB tenían niveles séricos de IgA más altos en comparación con el PROB, al contrario de lo que ocurría con los niveles de IGG de cadena pesada, es decir, era más alto en el PROB en comparación con la asociación PREB+PROB. En el día 63, se observaron niveles más bajos de haptoglobina en PREB en comparación con los otros grupos. El día 92 se observaron niveles más bajos de transferrina y glicoproteína ácida en la sangre de los animales que consumieron PREB+PROB. También en el día 92, los niveles de ceruplasmina en suero en los animales PROB fueron más altos que en los animales PREB. Se observó un mayor coeficiente de digestibilidad aparente (ADC) de materia orgánica (MO) cuando los animales consumieron prebiótico en comparación con probiótico, y la asociación de ambos no difirió de los dos tratamientos para CDA de MO. Los resultados permiten concluir que la asociación PREB+PROB fue importante para minimizar el estrés oxidativo fisiológico, así como para elevar los niveles séricos de IgA, importante inmunoglobulina mucosal a nivel del sistema digestivo; además, la combinación de resultados fisiológicos del consumo de prebióticos solos o combinados se reflejó en una mayor ganancia de peso en los terneros. O objetivo desse estudo foi avaliar se a adição de combinação de probiótico (PROB) e prébioticos (PREB) ou ambos sozinhos na dieta de bezerros holandeses após o aleitamento tem efeito positivo na resposta imune e antioxidante capaz de favorecer o crescimento do animal. Dezoito animais da raça holandesa (79,2 kg e 70 dias de idade), alojados em baias individuais por 92 dias foram usados aqui, e divididos em três tratamentos: PROB (n=6), PREB (n=6) e PROB+PREB (n=6). O consumo de PREB e da associação PREB+PROB gerou um ganho de peso corporal cerca de 10% a mais que o PROB. No hemograma, a única alteração foi a interação tratamento x dia para contagem de monócitos, sendo maior no dia 63 e 92 no sangue dos animais do PREB e PROB, respectivamente, comparado aos demais grupos. A associação PREB + PROB a partir do dia 63 elevou a atividade da enzima glutationa S-transferase em 14% quando comprado ao consumo de apenas PREB, além de reduzir em 35% os níveis de TBARS no sangue. Além disso, a associação de PREB+PROB reduziu em 12,5% e 16,2% a concentração de ureia sérica em relação ao PREB e PROB, respectivamente. Animais do grupo PREB+PROB tiveram maiores níveis de IgA no soro em relação ao PROB, ao contrário do que ocorreu referentes aos níveis de IGG de cadeia pesada, isto é, foi maior no PROB comparado a associação PREB+ PROB. No dia 63 foi observado menores níveis haptoglobina no PREB comparado aos demais grupos. No dia 92 foi observado menores níveis de transferrina e glicoproteína acida para a no sangue dos animais que consumiram PREB+PROB. Também no dia 92, níveis de ceruplasmina no soro do PROB foi maior que nos animais do PREB. Foi observado coeficiente de digestibilidade aparente (CDA) de matéria orgânica (MO) maior quando os animais consumiram prébiotico comparado ao probiótico, sendo que a associação de ambos não diferiu dos dois tratamentos para CDA de MO. Os resultados permitem concluir a associação PREB+PROB foi importante para minimizar o estresse oxidativo fisiológico, assim como elevar os níveis séricos de IgA, imunoglobulina de mucosa importante a nível de sistema digestivo; além disso a combinação de resultados fisiológicos do consumo de prébiotico isolado ou combinado refletiu em maior ganho de peso dos bezerros.
- Published
- 2022
5. Prébiotico isolado ou combinado com probiótico tem efeito positivo sobre digestibilidade de matéria orgânica, desempenho, resposta imune e antioxidante de bezerros após o desaleitamento
- Author
-
Lago, Rafael Vinicius Pansera, primary, Vitt, Maksuel Gatto de, additional, Brunetto, Andrei L. R., additional, Bissacotti, Bianca F., additional, Copetti, Priscila M., additional, Carvalho, Raissa A., additional, Pereira, Wanderson A. B., additional, Solivo, Gabriela, additional, Zotti, Claiton A., additional, Vedovatto, Marcelo, additional, and Silva, Aleksandro Schafer Da, additional
- Published
- 2022
- Full Text
- View/download PDF
6. Effects of Dietary Guanidinoacetic Acid on the Performance, Rumen Fermentation, Metabolism, and Meat of Confined Steers.
- Author
-
Giraldi GC, Wolschick GJ, Signor MH, Lago RVP, de Souza Muniz AL, Draszevski TMR, Balzan MM, Wagner R, and da Silva AS
- Abstract
With the increase in population, it is increasingly necessary to produce food more efficiently. This has expanded the market for additives, which are products that directly (nutritional effect) or indirectly (effect on animal health) favor productivity. Guanidinoacetic acid (GAA) is a natural precursor of creatine. It acts as an energy reserve in skeletal muscle. In addition to being a compound with more significant bioavailability, it is more thermally stable and less expensive than creatine. Therefore, this study aimed to determine whether adding GAA to the cattle diet would alter the meat's composition and fatty acid profile. We used 24 Holstein cattle males (409 ± 5.6 kg), approximately 15 months old, and separated them into four homogeneous groups, one being the control group and three groups with various dosages of GAA in the diets (3.3; 6.6, and 9.9 g/animal/day), for an experimental period of 60 days. Blood, rumen fluid, and animal weighing were performed at three points (days 1, 30, and 60), and daily feed consumption was measured. Steers fed with GAA (9.9 g/d) showed a 16.9% increase in average daily gain (ADG) compared to the control group. These same animals (T-9.9 group) fed with GAA showed a 20% increase in fed efficiency compared to the control group. Lower leukocyte, lymphocyte, and granulocyte counts and lower cholesterol levels were observed in animals that consumed 6.6 g and 9.9 g/d GAA compared to the control group. Animals from the T-6.6 and T-9.9 groups showed 30% and 27.6% reduced bacterial activity in the rumen compared to the control group, respectively. Steers from the T-6.6 and T-9.9 groups fed with GAA showed a 20% and 37% increase in short-chain fatty acids (SCFAs) compared to the control group, respectively. A higher concentration of acetic, propionic, and butyric acids in the ruminal fluid of cattle T-9.9 group was observed at day 60. The two highest doses of GAA showed lower fat levels in the meat, just as the cattle that received 9.9 g/d showed higher levels of total polyunsaturated fatty acids. Complementary data results draw attention to the dose of 9.9 g/d GAA in cattle diets, as anti-inflammatory action can be seen and combined with a higher concentration of SCFAs, consequently increases weight gain. We concluded that consuming this GAA increases the concentration of some unsaturated fatty acids (omegas) in the meat, which adds quality to the product for the consumer.
- Published
- 2024
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.