Supplementation of lamb ewes with different protein sources in deferred marandu palisadegrass (Brachiaria brizantha cv. marandu) pasture

Gurgel, A. L. C.; Difante, Gelson dos Santos; Neto, João Virgínio Emerenciano; Costa, Marcone Geraldo; Dantas, Joederson Luiz Santos; Ítavo, L. C. V.; Ítavo, Camila Celeste Brandão Ferreira; Pereira, Marília Williani Filgueira; Rodrigues, Jéssica Gomes; Oliveira, Ingrid Laíse Silvestre de; Bezerra, José Igor Gomes

doi:10.1590/1678-4162-11702

Cited by 8 publications

(4 citation statements)

References 24 publications

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“…Biometric measurements are highly correlated with the major cuts of the carcass (2) . Therefore, studies were developed to test the hypothesis that biometric measurements would be efficient in predicting the yield of these cuts.…”

Section: Prediction Of Body Weight and Carcass Traits Of Sheep Throug...mentioning

confidence: 99%

“…Sheep farming for meat production in Brazil has expanded in the last decade because of the increased demand for this type of meat in the market. Thus, producers have sought ways to establish production systems capable of efficiently generating quality meat at a low cost (1,2,3) . However, the productivity of these animals in Brazil is still incipient due to deficiencies in genetic and nutritional management, poor financing, inadequate management systems of the various rearing stages, and low ability to properly organize the production chain (4) .…”

Section: Introductionmentioning

confidence: 99%

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Aspectos relacionados con la importancia del uso de modelos predictivos en la producción ovina. Revisión

Gurgel

Difante

Ítavo

et al. 2022

Rev. Mex. Cienc. Pecu.

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Sheep production systems face numerous challenges, which make decision-making a process fraught with risks and uncertainties. Modelling is a helpful tool in this respect, as it allows decision-makers to evaluate the behaviour of variables and their interrelationships, in addition to using previous or related information to predict results and simulate different scenarios. The advent of prediction models has made it possible to monitor the weight of an animal and determine the best time for its sale. Additionally, it allows producers to estimate the weights of the carcass and major marketable cuts before slaughter. All this information is directly associated with the profitability and success of the production activity. Therefore, in view of the different applications of mathematical models in production systems, this literature review examines concepts in modelling studies and the importance of using prediction models in meat sheep production. Furthermore, it addresses the practical application of modelling studies in predicting dry matter intake and carcass traits of meat sheep through correlated variables.

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Section: Prediction Of Body Weight and Carcass Traits Of Sheep Throug...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aspectos relacionados con la importancia del uso de modelos predictivos en la producción ovina. Revisión

Gurgel

Difante

Ítavo

et al. 2022

Rev. Mex. Cienc. Pecu.

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“…Inadequate nutrition of the ewe, especially in the last third of gestation, is associated with a reduction in lamb birth weight and development, low vigor, and high neonatal mortality (Fraga et al, 2018;Gurgel et al, 2020;Arco et al, 2021). Moreover, ewes need a greater nutrient supply in a smaller volume of feed due to the reduction in abdominal space while pregnant.…”

Section: Introductionmentioning

confidence: 99%

Effect of supplementation of ewes in the final third of gestation on the development of their lambs

Campos¹,

Difante²,

Gurgel³

et al. 2022

Revista Brasileira De Zootecnia

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This study examined the effect of different supplementation strategies for ewes in the last third of gestation, kept on a deferred Brachiaria brizantha cv. Marandu pasture, on their performance and the growth curve of their lambs. A total of 54 ewes, of no defined breed, with an average weight of 41.10±3.10 kg, were used in a completely randomized design, divided into three groups (18 ewes per treatment). In total, 61 lambs were born, 28 females and 33 males, with 3.70±0.55 and 3.68±0.69 kg birth weight, respectively. Treatments were as follows: multiple mixture ad libitum, concentrate supplement at 0.4% live weight (LW), and concentrate supplement at 0.8% LW. Average daily weight gain (ADG, g/animal/day) and total weight gain (TWG, kg/animal) were evaluated in ewes and lambs. Reproductive efficiency indices were measured in the ewes and biometric variables in the lambs. The ADG and TWG of ewes in the last third of gestation were higher in animals supplemented at 0.8% LW. Reproductive efficiency results were superior in ewes supplemented at 0.4% LW. The effect of ewe supplementation on lamb growth curve as estimated by the Gompertz model did not reveal differences between the curves of lambs born to ewes that received supplementation at 0.4 and 0.8% LW. However, supplementing ewes with a multiple mixture induced a reduction in the growth curve parameters of their lambs. The use of concentrated supplementation, at levels of 0.4 and 0.8% of LW, provides greater productive and reproductive performance for ewes and lambs.

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“…Brachiaria brizantha cv. Marandu), it is observed that it exhibits good primary production indexes, vitality, seed production capacity, ability to make small and large ruminants present the maximum production potential, due to the supply of forage in adequate proportion and good nutritional value (GERMANO et al, 2018;EUCLIDES et al, 2019;GURGEL et al, 2020;HEIMBACH et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Agronomic performance of Urochloa brizantha cv. Marandu cultivated in clayey and sandy soil submitted to water and nutritional management

Ferreira

Esser

Santos

et al. 2021

Reveng

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Water and nutrient supply, as well as the soil texture, are some of the challenges that affect forage yield. Therefore, the objective of this work was to evaluate the agronomic performance of Urochloa brizantha cv. Marandu cropped in clayey and sandy soil submitted to water and nutritional management, in the municipality of Rio Verde, State of Goiás. The treatments consisted of a combination of soil with two textural classes (clayey and sandy), two levels of fertilization (A1: 30; 7 and 36 and A2: 45; 10.5 and 54 NPK per Mg DM, respectively), and seven water depths (0%, 25%, 50%, 75%, 100%, 125% and 150% of the crop evapotranspiration (ETc)), in four replicates. Crop performance was evaluated using SPAD index, plant height, leaf length, leaf width, leaf/stem ratio, crude protein, neutral detergent fiber, and dry matter. The data were subjected to multivariate data analysis. The principal component analysis allowed to observe that the first principal component explained 68.94% of the data, being characterized for promoting the best crop performance in relation to leaf length and width, characteristics that reflect in the other assessed variables. Forage performed poorly in winter because of the limitation of the climatic conditions. A higher yield was observed in the dry matter submitted to depths greater than 100% of ETc, regardless of the soil texture and the level of fertilization.

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Supplementation of lamb ewes with different protein sources in deferred marandu palisadegrass (Brachiaria brizantha cv. marandu) pasture

Cited by 8 publications

References 24 publications

Aspectos relacionados con la importancia del uso de modelos predictivos en la producción ovina. Revisión

Aspectos relacionados con la importancia del uso de modelos predictivos en la producción ovina. Revisión

Effect of supplementation of ewes in the final third of gestation on the development of their lambs

Agronomic performance of Urochloa brizantha cv. Marandu cultivated in clayey and sandy soil submitted to water and nutritional management

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