Análise econômica da produção de carne de cordeiros sob dois sistemas de terminação: pastagem e confinamento

Macêdo, Francisco de Assis Fonseca de; Siqueira, Edson Ramos de; Martins, Elias Nunes

doi:10.1590/s0103-84782000000400020

Cited by 22 publications

(22 citation statements)

References 2 publications

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“…Consequently, supplementation strategies should enable satisfactory weight gain, as well as evaluate the influence of feed costs (concentrated feed) on the profitability of the adopted production system (MACEDO, 2000;MATEUS et al, 2011;PAIM et al, 2011). In this study, we evaluated an unorthodox replacement (roughage for feed) with the aim of reducing production costs and showed a profitable production system, revealing that such substitution may be advantageous when a nutritionally balanced diet is ensured.…”

Section: Resultsmentioning

confidence: 99%

Aerial parts of cassava as partial replacement for feed concentrates in the diet of lambs raised in semi-confinement

Pereira

Ítavo

Mateus

et al. 2017

SCA

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This study aimed to evaluate the performance and economic viability of including the aerial parts of cassava (PAM) in the feed of semi-confined lambs for partial reduction of food concentrates. Fifty-six sheep, including males and females of the Pantaneira genetic group weighing 18.84 ± 2.02 kg on an average were used. The experiment was conducted in a factorial randomized complete block design with four treatments, each with seven females and seven males. Each group of 14 animals received one of four treatments: control, 10% of food concentrate in diet replaced with PAM, 20% replaced with PAM, and 30% replaced with PAM. The average total gain in weight (GWT) of the male lambs was 26.89% higher than the gains observed in females. Based on the cost analysis, we observed a linear effect (P < 0.01), i.e., a decrease in the feed cost for male and female groups with increase in PAM content. For the study period, the expenditure for the control male group was the highest at $ 17.60 per animal. Expenditure for the PAM 30 male group was the lowest at $ 12.74 per animal. These figures reflect the actual operating costs (COE), i.e., the power is 75.78% and 74.77%, for male and female groups respectively. The total cost, decreased linearly (P < 0.05) with PAM 30 treatment costing the least at $ 47.90, which was $ 7.02 lower than the control. When assessing the net margin per kilogram among the female groups, we observed a quadratic effect (P < 0.01) with a maximum gain of 23.98% when adding PAM and $ 0.50 kg -1 . Our results show that the raising of lambs in semi-confinement was economically viable, and the addition of the aerial part of processed cassava in the feed presented a higher economic return. Further, the addition of aerial parts of cassava did not affect the performance of the lambs. ResumoObjetivou-se avaliar o desempenho produtivo e viabilidade econômica da inclusão da parte aérea de mandioca in natura na ração de cordeiros semi-confinados, em busca da redução parcial de alimentos concentrados. Foram utilizados 56 ovinos da raça Pantaneira, sendo 28 machos e 28 fêmeas, com idade média de 75 dias, pesos médios de 18,84kg ± 2,02, avaliados durante os meses de janeiro a março de 2015, totalizando 65 dias. O delineamento experimental foi em blocos inteiramente casualizados com quatro tratamentos, cada um com 7 fêmeas e 7 machos, sendo que foram divididos de forma que os pesos e os animais fossem o mais homogêneos. Cada grupo de 14 animais recebeu um dos quatro tratamentos: Controle; tratamento com adição de 10% PAM em substituição ao concentrado; tratamento com adição de 20% de PAM em substituição ao concentrado e tratamento com adição de 30% de PAM em substituição ao concentrado. O valor de ganho médio total (GPT) dos cordeiros machos foi 26,89% superior aos ganhos observados no grupamento de fêmeas. Com base no centro de custos foi observado efeito linear (P < 0,01) decrescente no valor da alimentação para os grupamentos de macho e fêmea. Sendo o tratamento controle o maior dispêndio no período com R$ 5...

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Section: Resultsmentioning

confidence: 99%

Aerial parts of cassava as partial replacement for feed concentrates in the diet of lambs raised in semi-confinement

Pereira

Ítavo

Mateus

et al. 2017

SCA

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“…Os valores do suplemento por kg de carcaça produzido estão acima dos valores relatados por Macedo et al (2000), que citaram valores de R$ 2,26/kg para os cordeiros em pastagem e de R$ 2,31 para os cordeiros confinados, e Zundt et al (2002), que encontraram custo médio por quilograma da carcaça produzido com dieta contendo 12% PB de R$ 2,53 para cordeiros terminados em confinamento.…”

Section: E íTavo Et Al (2009)unclassified

Processamento da casca de mandioca na alimentação de ovinos: desempenho, características de carcaça, morfologia ruminal e eficiência econômica

et al. 2011

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“…The use of terminal sire meat breeds with higher growth rates and feeding strategies are resources which have been used to reduce slaughter age and improve carcass quality (Macedo et al, 2000). Crossbreeding can also lead to animals with higher growth rates, better conformation and better meat quality in lambs (Cardellino, 1989).…”

Section: Introductionmentioning

confidence: 99%

Performance and carcass quality in three genetic groups of sheep in Brazil

Cardoso

Landim

Louvandini³

et al. 2013

R. Bras. Zootec.

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-Three different genetic groups were evaluated for growth up to slaughter and carcass quality for kill out, commercial cuts, non-carcass components, as well as carcass morphometric measurements. Pure Santa Ines (SI), ½ Ile de France × ½ Santa Ines (I × SI) and ½ Texel × ½ Santa Ines (T × SI) lambs were weighed weekly until they reached predetermined slaughter weight (30, 35, 40 and 45 kg). In both creep feeding and fattening the animals from crosses were superior to the Santa Ines hair sheep in terms of daily weight gain and weaned in less time. Crossbred animals also showed better performance than purebred Santa Ines in terms of commercial cuts and carcass weights. Correlations showed that fat depth and eye muscle area decreased with an increase in morphometric measures, indicating that larger animals are possibly later developing in terms of carcass finishing compared with smaller animals. The optimal slaughter weight is approximately 35 kg.

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Análise econômica da produção de carne de cordeiros sob dois sistemas de terminação: pastagem e confinamento

Cited by 22 publications

References 2 publications

Aerial parts of cassava as partial replacement for feed concentrates in the diet of lambs raised in semi-confinement

Aerial parts of cassava as partial replacement for feed concentrates in the diet of lambs raised in semi-confinement

Processamento da casca de mandioca na alimentação de ovinos: desempenho, características de carcaça, morfologia ruminal e eficiência econômica

Performance and carcass quality in three genetic groups of sheep in Brazil

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