Performance and meat quality traits of beef heifers fed with two levels of concentrate and ruminally undegradable protein

Duarte, Márcio de Souza; Paulino, Pedro Veiga Rodrigues; Filho, Sebastião de Campos Valadares; Paulino, Mário Fonseca; Detmann, Edênio; Zervoudakis, Joanis Tilemahos; Monnerat, João Paulo Ismério dos Santos; Viana, Gabriel da Silva; Silva, Luiz Henrique P.; Serão, Nick V. L.

doi:10.1007/s11250-011-9778-4

Cited by 17 publications

(13 citation statements)

References 15 publications

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“…The variations observed in dressing percentage for animals fed different concentrate levels may result from changes in gastrointestinal tract weight (Duarte et al, 2011). Steers receiving lower concentrate diets may present higher viscera weights due to increased gastrointestinal fill associated with greater NDF intake, which (Duarte et al, 2011;Leme et al, 2003;Pereira et al, 2006). Despite the higher ADG observed for the 91 % concentrate treatment, LM area and backfat thickness did not differ (p > 0.05) between concentrate levels (Table 3).…”

Section: Resultsmentioning

confidence: 99%

Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets

Nuñez¹,

Caetano²,

Berndt

et al. 2013

Sci. agric. (Piracicaba, Braz.)

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Zebu cattle fed high concentrate diets may present inconsistent performance due to the occurrence of metabolic disorders, like acidosis. The isolated use of ionophores and virginiamycin in high grain diets can improve animal performance and reduce the incidence of such disorders, but recent studies suggested that their combination may have an additive effect.Thus, 72 Nellore steers, 389 ± 15 kg initial body weight (BW), were confined and fed for 79 days to evaluate the combination of virginiamycin and salinomycin on performance and carcass traits. Animals were allocated to a randomized complete block design by BW, in a 2 × 2 factorial arrangement of treatments, with two concentrate levels (73 and 91 %) and two virginiamycin levels (0 and 15 mg kg -1 ), and salinomycin (13 mg kg

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Section: Resultsmentioning

confidence: 99%

Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets

Nuñez¹,

Caetano²,

Berndt

et al. 2013

Sci. agric. (Piracicaba, Braz.)

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“…Increasing the concentrate from 50 to 80% could result in a greater amount of body fat provided by differences in the energetic supply related to the increase in the concentrate (ROSA et al, 2010;LAGE et al, 2012). According to Duarte et al (2011), an increase from 40 to 80% of concentrate had no effect on cold carcass weight, but increased carcass yield from 52 to 55%. This differed from our results, possibly because of the initial weight (240 kg) of animals used by these authors.…”

Section: Resultsmentioning

confidence: 99%

Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle

Homem¹,

Neto²,

Pinheiro³

et al. 2016

SCA

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The goal of this study was evaluate diets (50 or 80% of concentrate) and body biotypes (late or early) on performance, behavior, carcass condition, meat quality, and feed cost estimates in feedlot finishing Guzera beef cattle. Use of concentrates in the diet may improve performance and carcass fat scores in ruminant animals, but Guzera beef cattle may be more efficient in forage conversion, which directly influences the economic viability of the production system. We evaluated 32 non-castrated male Guzera beef cattle at 32±2 months of age. The experimental design was completely randomized with four treatments and six replicates in a 2 × 2 factorial design (2 diets × 2 body biotypes). Initial and final body weights were 459.4±31.2 kg and 566.7±40.8 kg, respectively. There was no change (P > 0.05) in dry matter intake, feed conversion, or daily weight gain when the concentrate in the diet was increased to 80%. Animals fed a diet with 80% of concentrate spent less time (P < 0.05) ruminating (17.8±6.3 vs. 6.3±2.7% of the assessed time). Body biotype did not alter the variables. The rise from 50 to 80% in the proportion of dietary concentrate increased carcass fat, with positive returns in the production process, even given the reduction in rumination, which can lead to poor welfare of animals consuming 80% of dietary concentrate. Body biotype did not affect the variables studied, but it is worth emphasizing that the age at slaughter of these animals probably influenced this result. Thus, selection of the best diet should be based on feeding cost, and in accordance with the cost estimated in this study, the diet with 80% of concentrate is the most suitable for feedlot finished Guzera beef cattle. ou tardio) sobre o desempenho, comportamento, carcaça, qualidade de carne e estimativas de custos com alimento na terminação de bovinos de corte da raça Guzerá confinados. Aumentar os níveis de concentrado na dieta pode melhorar o desempenho e a gordura na carcaça em animais ruminantes, porém animais de corte da raça Guzerá podem ser mais eficientes na conversão de forragem, o que influenciaria diretamente a viabilidade econômica do sistema de produção. Foram utilizados 32 bovinos de corte da raça Guzerá, machos não castrados com 32±2 meses de idade. O delineamento experimental foi inteiramente casualizado com 4 tratamentos e 6 repetições, em esquema fatorial 2x2 (2 dietas x 2 biótipos corporais). O peso corporal inicial e final foi de 459,4±31,2 kg e 566,7±40,8 kg, respectivamente. Não houve alteração (P > 0,05) no consumo de matéria seca, conversão alimentar e ganho de peso diário pelo aumento de 80% de concentrado na dieta. Animais alimentados com 80% de concentrado na dieta passou um tempo menor (P < 0,05) em ruminação (17,8±6,3 vs 6,3±2,7% do tempo avaliado). O biótipo corporal não modificou (P > 0,05) as variáveis estudadas. O aumento de 50 para 80% na proporção de concentrado na dieta aumenta a gordura na carcaça, com retorno positivo no processo de produção, mesmo com uma redução de ruminação, o que pode leva...

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“…Konsumsi BK pada kedua kelompok yang sama dikarenakan kedua kelompok mengkonsumsi jerami dan konsentrat dalam jumlah yang relatif sama, dengan bahan baku dan kandungan nutrien yang relatif sama pula, hanya dibedakan pada kandungan RDP dan RUP-nya. Sesuai dengan hasil beberapa penelitian sebelumnya bahwa penambahan tingkat RUP dalam pakan tidak memberikan pengaruh nyata terhadap konsumsi BK (Diaz-Royon et al, 2016;Aboozar dan Niazi, 2013;Lopez, 2012;Duarte et al, 2011;Ali et al, 2009;Broderick et al, 2009;Richardel, 2004;Bohnert et al, 2002;Dunlap et al, 2000;Greenfield et al, 2000;Hartwell et al, 2000).…”

Section: Hasil Dan Pembahasanunclassified

“…Sesuai dengan Nusi et al (2011), bahwa penambahan tingkat RUP pada pakan memberikan pengaruh yang berbeda tidak nyata terhadap konversi pakan. Duarte et al (2011) melaporkan hasil yang berbeda, sapi yang diberi pakan dengan level RUP yang lebih tinggi (48,79%) mempunyai konversi pakan 12,7% lebih baik dibandingkan sapi yang memperoleh pakan dengan level RUP yang lebih rendah (27,19%). Konversi pakan yang lebih baik pada penelitian tersebut kemungkinan karena penggunaan selisih RUP yang cukup tinggi antara kedua kelompok, yaitu sebesar 21,60%.…”

Section: Hasil Dan Pembahasanunclassified

The Effect of Rumen Undegradable Protein Level of Concentrate With Rice Straw as Basal Diet on Growth Performance of Sumba Ongole Beef Cattle

et al. 2017

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This research was conducted to determine growth performance of SO beef catlle fed rice straw added with concentrate with different levels of RUP, RUP used was soybean meal protected with 0.8% formaldehyde. Thirty six SO bull were divided into two groups at random, group that fed low and high RUP. Feed in the form of rice straw and concentrate with a ratio of 30:70 in dry matter (DM). Cattle fed low RUP get concentrate containing DM 91.22%, crude protein (CP) 19.38%, RUP 33.05%, and TDN 51.71%, whereas cattle fed high RUP get a concentrate with DM 91.13%, CP 19.40%, RUP 41.13%, and TDN 51.57%. Water was given unlimited. The nutrient intake and growth performance parameters analyzed using independent sample t-test, average daily gain was analyzed by ANCOVA with initial body weight as covariates. Intake RDP and RUP had significant effect (P<0.05) between cattle fed low and high RUP. Nutrient intake (DM, CP, TDN) and growth performance (average daily gain (ADG), feed conversion, feed cost per gain) showed not significant between cattle fed low and high RUP. The conclusion were the increased of RUP levels could improved growth performance of SO beff cattle.

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Performance and meat quality traits of beef heifers fed with two levels of concentrate and ruminally undegradable protein

Cited by 17 publications

References 15 publications

Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets

Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets

Influence of concentrate levels in diet and body biotypes on productive variables of Guzera beef cattle

The Effect of Rumen Undegradable Protein Level of Concentrate With Rice Straw as Basal Diet on Growth Performance of Sumba Ongole Beef Cattle

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