Intake, performance, digestibility, microbial efficiency and carcass characteristics of growing Nellore heifers fed two concentrate levels

Gionbelli, Mateus Pies; Filho, Sebastião de Campos Valadares; Detmann, Edênio; Paulino, Pedro Veiga Rodrigues; Valadares, Rilene Ferreira Diniz; Santos, Tathyane Ramalho; Silva, Luiz Fernando Costa e; Magalhães, Fabrício Anicio

doi:10.1590/s1516-35982012000500023

Cited by 5 publications

(8 citation statements)

References 28 publications

(34 reference statements)

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“…Huque et al (2005) observed similar yield of blood (3.3%) and liver (1.12%), higher yield of skin (11.7%) and lower yield of head (3.77%). Different forage to concentrate ratio in diets did not have influence on the percentage of 4 feet, head and hides (Gabriella et al, 2008) and the yield of hide (8.98%) and 4 feet (2.06%) were consistent with the present results. In another study, Fadol and Babiker (2010) did not find any difference in non-carcass components of Sudan Baggara zebu bulls fed on ad lib or restricted feeding.…”

Section: Advances In Animal and Veterinary Sciencessupporting

confidence: 92%

“…Our results were consistent with the results of Gionbelli et al (2012) who did not find any difference for forequarter and hindquarter yields between 22.5 and 45% concentrate level. Higher yield of forequarter in this study compared to that reported by Gionbelli et al (2012), which might be due to the presence of prominent hump in Brahman crossbred bulls. Roy et al (2013) reported similar ratio of forequarter and hindquarter yield in Brahman crossbred, Pabna and RCC bulls at different ages fed 50% concentrate diet However, carcass traits and carcass yield were not influenced by concentrate level (1.0 or 1.25% of LW) in Nellore cattle (Marcondes et al, 2008).…”

Section: Advances In Animal and Veterinary Sciencescontrasting

confidence: 65%

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Effect of Levels of Concentrates on Carcass Characteristics, Meat Traits and By-Products in Crossbred Brahman Cattle

Rashid¹

2015

Adv. Anim. Vet. Sci.

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| Twelve Brahman crossbred growing bulls, divided into three groups, were fed three diets; 100% concentrate diet (A), a 1:1 mixed diet on dry matter of Urea-Molasses-Straw (UMS) and concentrate diet (B) and sole UMS diet (C), respectively, to evaluate the effects of concentrate level on slaughterhouse by-products, carcass characteristics and meat traits. The animals were fed for a period of 90 days and three animals from each group were slaughtered at the end of the trial. The results indicated that yield of edible and inedible by-products had no significant difference among diet groups. When expressed in percentage of live weight, hides, shanks, liver and empty stomach were greater (P<0.05) in animals fed diet C compared to those in diet A and B, whereas no difference was found for those between the last two diets. There was no variation between diet A and B in carcass weight, while it was significantly (P<0.01) lower in diet C. Among carcass traits, hotdressing percentage, kidney-pelvic-heart fat, abdominal fat and back fat thickness increased linearly (P<0.01) with the increased level of concentrate in diets, while Longissimus muscle area did not vary among diet groups. Dietary treatments had no influence (P>0.05) on the content of moisture and protein in meat, but concentrate supplementation reduced ash content and increased the amount of fat (P<0.01) compared to UMS group. Therefore, considering carcass and meat traits, a mixed diet of concentrate and UMS may be fed to Brahman crossbred bulls for fattening.* The ME value of each ingredient was estimated using the equation; ME (MJ/kg DM) = 13.50 + 0.263 EE% -0.133 ash % -0.136 ADF% (MAFF, 1984); The ME value of concentrate mixture (100%) was calculated using the estimated ME value of all ingredients; ME value of UMS (100%) was calculated assuming 6.2 MJ ME /kg DM of straw (Khan, 2008) and 13.0 MJ ME /kg DM of molasses (Dugmore, 1995); ME for diet B= Average of diet A and C= 9.65 MJ ME /kg DM of diet

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Section: Advances In Animal and Veterinary Sciencessupporting

confidence: 92%

Section: Advances In Animal and Veterinary Sciencescontrasting

confidence: 65%

Effect of Levels of Concentrates on Carcass Characteristics, Meat Traits and By-Products in Crossbred Brahman Cattle

Rashid¹

2015

Adv. Anim. Vet. Sci.

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“…Similar intake of CP and ME by animals fed with three diets could be due to the fact that DMI was not different among the diets and that the diets were iso-nitrogenous and iso-caloric ( Table 2). The daily feed and protein intake was not affected by concentrate level ranging 20% to 80% in iso-nitrogenous diets in different breeds [20], steers [21] and heifers [22], which were in accordance with the present results. Feeding four iso-protein diets of different concentrate proportion to Holstein  Brahman crossbred calves [23] found the higher intake of DM, OM and CP in 60% concentrate diet compared to 80% concentrate diet, whereas the DM and CP intake was found to be similar between 40% and 80% concentrate diet.…”

Section: Feed Intake and Digestibilitysupporting

confidence: 91%

“…In the present experiment, the digestibility of DM and other nutrients was not influenced by C:R ratio of diets, which agrees with the results of DM and CP digestibility between two iso-nitrogenous diets [22], among three concentrate levels in diets [23] [24]. Unlike to the present results, as reported by Carvalho et al [25], DM digestibility was increased with increased concentrate supplementation in diet, when steers were fed with diets based on sugarcane bagasse.…”

Section: Feed Intake and Digestibilitysupporting

confidence: 91%

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Effect of Concentrate to Roughage Ratio on Cost Effective Growth Performance of Brahman Crossbred Calves

Rashid¹,

Huque²,

Hoque³

et al. 2015

JAST-A

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An experiment was conducted to evaluate the growth performance and cost per gain of Brahman  local crossbred bull calves receiving three diets with varying concentrate to roughage ratio (C:R) of 75:25, 65:35 and 55:45 on dry matter (DM) basis. Twelve bull calves (aging 11.5 ± 1.2 months and 170.8 ± 13.0 kg live weight) divided into three equal groups were fed on three diets. The diets were balanced to 14.5% crude protein (CP) level and 10.5 MJ metabolizable energy (ME) per kg DM, formulating different concentrate mixtures. German grass (Echinoclora grousgali) and paddy straw were offered at 2:1 ratio on DM basis as roughages. The results revealed that C:R ratio did not affect (P > 0.05) the intake of feed and nutrients, feed efficiency (7.04, 6.94 and 6.76) and average daily gain (981, 958 and 976 g). Digestibility of nutrients was not affected (P > 0.05) by C:R. Animals fed diet with C:R = 55:45 had the lowest feed cost (Bangladeshi Taka 136.8 BDT/kg live weight gain), which was increased (147.5 BDT and 153.8 BDT) non-significantly (P > 0.05) with the increasing level of concentrate. The diet consisting of 55% concentrate mixture showed similar results with the diet consisting of 75% concentrate mixture, but was comparatively economic. Therefore, considering the growth performance and cost per kg gain of Brahman crossbred growing calves, it may be concluded that the diet consisting of 55:45 C:R may be used for economic beef production.

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Performance and carcass yield of crossbred dairy steers fed diets with different levels of concentrate

Silva

Véras

Ferreira

et al. 2015

Trop Anim Health Prod

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The objective of this study was to evaluate the influence of diets with increasing concentrate levels (170, 340, 510 and 680 g/kg of total dry matter) on dry matter intake, digestibility, performance and carcass characteristics of 25 Holstein-Zebu crossbred dairy steers in a feedlot. A completely randomized design was used, and data were submitted to analysis of variance and regression. The dry matter intake and digestibility coefficients of all nutrients increased linearly. The total weight gain and average daily gain added 1.16 kg and 9.90 g, respectively, for each 10 g/kg increase in concentrate. The empty body weight, hot carcass weight and cold carcass weight responded linearly to increasing concentrate. The hot carcass yield and cold carcass yield, gains in empty body weight and carcass gain were also influenced, as were the efficiencies of carcass deposition and carcass deposition rate. It is concluded that increasing concentrate levels in feedlot diets increase the intake and digestibility of dry matter and other nutrients, improving the feed efficiency, performance and physical characteristics of the carcass. Furthermore and of importance concerning the climate change debate, evidence from the literature indicates that enteric methane production would be reduced with increasing concentrate levels such as those used.

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Intake, performance, digestibility, microbial efficiency and carcass characteristics of growing Nellore heifers fed two concentrate levels

Cited by 5 publications

References 28 publications

Effect of Levels of Concentrates on Carcass Characteristics, Meat Traits and By-Products in Crossbred Brahman Cattle

Effect of Levels of Concentrates on Carcass Characteristics, Meat Traits and By-Products in Crossbred Brahman Cattle

Effect of Concentrate to Roughage Ratio on Cost Effective Growth Performance of Brahman Crossbred Calves

Performance and carcass yield of crossbred dairy steers fed diets with different levels of concentrate

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