Qualitative characteristics of cases of lambs crossbreds santa ines x pantaneiro finished on pasture and supplementation

Araújo, Fabrício Eugênio; Filho, Amorésio Souza Silva; Mousquer, Cláudio Jonasson; Oliveira, Marcos Antônio de; Mexia, Alexandre Agostinho; Geron, Luiz Juliano Valério

doi:10.5935/1981-2965.20140034

Cited by 3 publications

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“…The consumption of total dry matter is of fundamental importance, since the ration provided influences the performance of lambs (ARAÚJO et al, 2014). Thus, the observed linear effect for total consumption of dry matter with the addition of PAM resulted in low food consumption, as the supply of feed was 649 and 609 g per animal in the male PAM 20 and PAM 30 treatment groups.…”

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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“…According to Gois et al (2017) andOliveira et al (2020), the mean value for this variable was 3% to 3.75% in the meat of confined lambs. Araújo et al (2014) compared animals on pasture with and without supplementation and observed higher lipid values in the meat of supplemented animals, with values of 3.67% and 2.02%, respectively. Furthermore, Santos (2019) found lipid values of 2.2% in the meat of animals fed pasture and supplement and 3.44% for confined animals, corroborating the results of the present study.…”

Section: Discussionmentioning

confidence: 99%

Different nutritional systems influence the tenderness and lipid oxidation of ewe lamb meat without altering gene expression

SILVA,

GIOMETTI,

CASTILHO

et al. 2023

An. Acad. Bras. Ciênc.

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Feeding is a determining factor in the various characteristics of sheep meat and animal performance, the objectives were to evaluate the effect of supplementation of ewe lambs finished in different nutritional planes on the gene expression of CASP3, CAPN1, CAPN2 and CAST and its possible association with meat quality. Samples of the Longissimus lumborum muscle of 24 ewe lambs were used, distributed in 3 groups (n=8): P (pasture), PS (pasture and supplement) and F (feedlot). Physicochemical analyses were performed for centesimal analysis, pH, lipid oxidation, Warner-Bratzler shear force and RT-qPCR for the analysis of relative gene expression of the following genes: CASP3, CAPN1, CAPN2 and CAST. There is an increase in daily weight gain and ethereal extract values in the meat of confined animals, due to the greater energy intake in the nutrition of these animals. Animals kept only on pasture have lower lipid oxidation in meat than other treatments because of the lower percentage of lipids. The Warner-Bratzler shear force is considerably higher in the meat of animals kept only on pasture but is still considered tender. The different nutritional systems do not interfere with the gene expression of CASP3, CAPN1, CAPN2 and CAST in ewe lambs.

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“…As amostras foram resfriadas e congeladas em freezer, à temperatura de 0°C, para posterior envio ao laboratório. Os métodos de conservação e análise das amostras foram de acordo com metodologias já estabelecidas (CECCHI, 2003, p. 21-36;CAMPOS et al, 2004, p. 50;ARAÚJO et al, 2014;GONÇALVES, 2015). As amostras foram acondicionadas para o envio em caixa isotérmica, coberta por gelo e lacrada com fita adesiva, sendo encaminhadas para o laboratório de análises em alimentos Qualittá, localizado na cidade de Ji-Paraná, Rondônia, com objetivo de realizar análises para determinação de valores de proteína bruta (PB) e lipídio (L) de cada amostra de peixe.…”

Section: Metodologia De Coleta Das Amostrasunclassified

Análises da composição proteica e lipídica da carne de Pirarucu (Arapaima gigas) submetido a dois tipos de dietas

Abrantes¹,

Cacoal²,

Rodrigues³

et al. 2020

Rev Agr Acad

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Qualitative characteristics of cases of lambs crossbreds santa ines x pantaneiro finished on pasture and supplementation

Abstract: Resumo: A ovinocultura está presente praticamente em todos os continentes, a ampla difusão da espécie se deve principalmente a seu poder de adaptação a diferentes climas,

Cited by 3 publications

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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

Different nutritional systems influence the tenderness and lipid oxidation of ewe lamb meat without altering gene expression

Análises da composição proteica e lipídica da carne de Pirarucu (Arapaima gigas) submetido a dois tipos de dietas

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