Associação de palma forrageira com feno de maniçoba ou silagem de sorgo e duas proporções de concentrado na dieta de vacas em lactação

Ramos, Alenice Ozino; Ferreira, M. A.; Santos, Djalma Cordeiro dos; Véras, Antônia Sherlânea Chaves; Conceição, Maria Gabriela da; Silva, E. C.; Souza, Aparecido Ribeiro de; Salla, Luciane Elisete

doi:10.1590/1678-6537

Cited by 8 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Microbial protein synthesis does not depend only on the N and carbohydrate sources of the diet; it is also influenced by the dilution rate in the rumen, feeding frequency, roughage to concentrate ratio, ionophores, and minerals such as P, S, and Mg in the diet (22) . The microbial efficiency values obtained in this study were below those reported by Ramos et al (23) . The values obtained in the current study are explained by the total DM and production levels of the cows.…”

Section: Microbial Protein Synthesiscontrasting

confidence: 90%

Effect of stocking management and nitrogen supplementation on pasture milk yield

et al. 2022

View full text Add to dashboard Cite

This study aimed to evaluate the effect of the first and last stocking strategies combined with a partial substitution of the protein from the supplement for urea nitrogen on nutrient intake and digestibility, milk composition, and nitrogen balance of primiparous Girolando cows. The cows were allocated to a double 4 × 4 Latin square composed of four animals and four treatments in a 2 × 2 factorial arrangement. Supplements were formulated to provide an intake of 0.6% body weight, with and without the inclusion of 21% urea nitrogen in their composition. The first stocking management method improved nutrient intake and digestibility. Supplementation with urea led to a 47% higher excretion of urine N (g/day) than the urea treatment. The combination of the supplement without urea and the first stocking provided higher intake and retention of nitrogen and higher retained-N levels (%digested N). The combination of a supplement containing 21% urea nitrogen and the first stocking can be used without compromising the nutritional and productive parameters of the cows.

show abstract

Section: Microbial Protein Synthesiscontrasting

confidence: 90%

Effect of stocking management and nitrogen supplementation on pasture milk yield

et al. 2022

View full text Add to dashboard Cite

show abstract

“…A síntese de proteína microbiana não depende apenas das fontes de nitrogênio e de carboidratos da dieta, sendo influenciada também pela taxa de diluição ruminal, pela frequência de alimentação, pela relação volumoso:concentrado, ionóforos e minerais, como P, S e Mg, na dieta (22) . Os valores de eficiência microbiana obtidos neste estudo ficaram abaixo do nível proposto por Ramos et al (23) . Os valores obtidos neste estudo justificam-se pelo consumo de massa seca total e nível de produção apresentado pelas vacas.…”

Section: Síntese De Proteína Microbianunclassified

Efeito do manejo do pastejo e suplementação nitrogenada sobre a produção de leite a pasto

et al. 2022

View full text Add to dashboard Cite

Resumo Objetivou-se avaliar os efeitos dos manejos do pastejo ponta e repasse combinados a substituição parcial da proteína do suplemento por nitrogênio ureico sobre o consumo e digestibilidade dos nutrientes, composição do leite e balanço de nitrogênio de vacas primíparas da raça Girolanda. As vacas foram alocadas em dois quadrados latinos 4 x 4 compostos de quatro animais cada e quatro tratamentos em um esquema fatorial 2 x 2. Os suplementos foram formulados para um consumo de 0,6% do peso corporal: sem utilização de nitrogênio ureico; ou com 21% de nitrogênio ureico em sua composição. O manejo do pastejo de ponta melhorou o consumo e a digestibilidade dos nutrientes. O suplemento contendo ureia excretou 47% a mais de N urina (g/dia) em comparação ao suplemento sem ureia. A combinação entre o suplemento sem ureia e o manejo de pastejo ponta apresentou maior ingestão e retenção de nitrogênio e maior N retido (%N digerido). A combinação entre o suplemento contendo 21% de nitrogênio ureico e o pastejo de ponta pode ser utilizada sem prejuízos aos parâmetros nutricionais e produtivos das vacas.

show abstract

“…Understanding the causes of variation in milk production and composition are important in production systems (Moreira et al, 2015), where seasonal differences in milk production are caused by climate change during the seasons (Bertocchi et al, 2014;Bernabucci et al, 2015). The dry period in tropical and semiarid regions can have a negative effect on milk production, as the production of dry matter in forage decreases and the fibre content of food increases; this can lead to decreases in the supply, consumption and digestibility of nutrients (Ramos et al, 2015) and the need for Semina: Ciênc. Agrár.…”

Section: Introductionmentioning

confidence: 99%

Yield, milk quality and physiological variables of dairy cows in rainy and dry seasons

Cardoso

Furtado

Ribeiro³

et al. 2021

Semina: Ciênc. Agrár.

View full text Add to dashboard Cite

The objective of this study was to analyse the effect of the dry and rainy seasons on the production, milk quality (lactose, fat, protein, total solids, TBC and SCC) and physiological (rectal and surface temperature and respiratory and heart rate) of crossbred cows (holstein/ zebu) in lactation, under rotational grazing regime in cultivated pasture, using 10 crossbred cows (holstein / zebu) in lactation, average live weight of 500 ± 30 kg, and in the rainy season they were between the fourth and fifth months of lactation and in the dry period were between the seventh and eighth months of lactation with an average initial production of 18 ± 4kg of milk / cow / day, maintaining batch homogeneity in both seasons. The animals were kept in a semi-intensive rearing system, using rotational grazing on pasture of Brachiaria decumbens, in an area of 3 hectares, where there was a conglomerate of trees that provided 5m² / animal with natural shade, to shelter the animals in the warm shorelines The seasons and times of the day significantly influenced (P < 0.05) the ambient temperature, relative air humidity and the black globe temperature index and humidity. The respiratory rate and surface temperature were higher (P < 0.05) in the dry season and the values for rectal temperature and respiratory rate were similar (P > 0.05) in the seasons. Milk production and protein showed a significant difference (P < 0.05) depending on the seasons. With the aid of physiological variables (rectal and surface temperature and heart and respiratory rate), even so, cows decreased their production and increased the concentration of protein in milk.

show abstract

Associação de palma forrageira com feno de maniçoba ou silagem de sorgo e duas proporções de concentrado na dieta de vacas em lactação

Abstract: Associação de palma forrageira com feno de maniçoba ou silagem de sorgo e duas proporções de concentrado na dieta de vacas em lactação [

Cited by 8 publications

References 10 publications

Effect of stocking management and nitrogen supplementation on pasture milk yield

Effect of stocking management and nitrogen supplementation on pasture milk yield

Efeito do manejo do pastejo e suplementação nitrogenada sobre a produção de leite a pasto

Yield, milk quality and physiological variables of dairy cows in rainy and dry seasons

Contact Info

Product

Resources

About