Net Feed Intake
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Production of cachama reciprocal hybrids in earth ponds
RESUMO: Comparou-se o crescimento de híbridos de tambaqui e pirapitinga, tambatinga (Colossoma macropomum ♀ x Piaractus brachypomus ♂) e pirambaqui (P. brachypomus ♀ x C. macropomum ♂) durante 154 dias para se verificar qual deles apresentava melhor produtividade. O experimento foi realizado em três viveiros de terra, cada um dividido transversalm
Cienc. Rural. Publicado em: 28/10/2019
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2. Dietary net energy plans for barrows from 25 to 100 kg body weight
ABSTRACT This experiment was conducted to evaluate growth performance and carcass characteristics of barrows from 25 to 100 kg fed diets with different dietary net energy (NE) levels. Seventy-two barrows with initial body weight (BW) of 25.19±2.13 kg were allotted using a completely randomized block design to one of six dietary NE treatments (2300, 2380, 24
R. Bras. Zootec.. Publicado em: 23/11/2018
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3. Dietary net energy for gilts from 25 to 100 kg body weight
ABSTRACT This experiment was conducted to evaluate the growth performance and carcass characteristics of gilts from 25 to 100 kg body weight (BW) fed diets with increased net energy (NE) levels. Seventy-two gilts with initial BW of 23.24±2.47 kg were allotted to one of six dietary treatments (2300, 2380, 2460, 2540, 2620, and 2700 kcal NE kg−1) using a co
R. Bras. Zootec.. Publicado em: 23/11/2018
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4. Comparative Effect of The Inclusion of Zootechnical Additives in the Feed of Japanese Quails in Two Productive Phases
Abstract This study aimed to evaluate the intestinal morphology, performance and financial analysis of the inclusion of additives in the feed during the productive period of 360 Japanese quails distributed in a completely randomized design in a split plot scheme in time with five treatments and eight repetitions of nine birds each. The treatments were: contr
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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5. Economic analysis, performance, and feed efficiency in feedlot lambs
ABSTRACT The objective of this study was to evaluate residual feed intake (RFI), residual intake and body weight gain (RIG) and their relationship with other traits of efficiency, performance, and economic analysis of sheep. Lambs (n = 102) were evaluated during 56 days and a herd consisting of 500 ewes was simulated with the mean of dry matter intake (DMI)
R. Bras. Zootec.. Publicado em: 2017-10
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6. Finishing swine fed cashew bagasse bran
ABSTRACT The purpose of this study was to evaluate the digestibility of cashew bagasse bran as well as the performance of swine fed diets with different levels of inclusion of this by-product and their economic viability. In the digestibility trial, ten crossbred barrows weighing 60±6.86 kg were housed in metabolic cages. Five received standard feed and fiv
R. Bras. Zootec.. Publicado em: 2016-05
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7. The Efficiency of AMEn and TMEn Utilization for NE in Broiler Diets
ABSTRACT The experiment was conducted to evaluate the feed intake, body weight gain, total energy (kJ), protein (g) intake, energy and protein efficiency ratio (EER, PER), net energy, and metabolic body weight, on two commercial broiler chickens (Arian and Ross 308 strains). Four treatmentsincluded diets formulated based onAMEn(kJ/g) Total Amino Acid (TAA) (
Rev. Bras. Cienc. Avic.. Publicado em: 2016-03
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8. Performance of free-range chickens reared in production modules enriched with shade net and perches
An experiment was carried out to evaluate the effect of environmental enrichment in a free-range chicken production system on live performance as a function of microclimate, physiological parameters, and performance parameters. Four production modules were divided into four pens with 10 birds each, totaling 60 birds. The following treatments were applied: ac
Rev. Bras. Cienc. Avic.. Publicado em: 2014-03
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9. Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets
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
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-08
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10. Estimation of endogenous contribution and urinary excretion of purine derivatives from the total digestible nutrient intake in Nellore heifers
The objectives of this experiment were to estimate the endogenous excretion of purine derivatives (PD), the intake and digestibility of nutrients, the urinary excretion of PD from the intake of total digestible nutrients (TDN) and digestible organic matter (DOM) in Nellore heifers. Eight heifers, 267±17 kg body weight (BW), were assigned to two 4 × 4 latin
R. Bras. Zootec.. Publicado em: 2012-08
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11. Estimativa da excreção urinária de derivados de purinas a partir do consumo de NDT e determinação da contribuição endógena em bovinos de corte / Estimation of urinary excretion of purines derivatives from TDN intake and determination of the endogenous contribution in beef cattle
Two experiments were conducted with eight Nelore heifers (BW 267 17 kg ) to assess the excretion of purine derivatives (PD) from intake of TND, the intake and digestibilities of nutrients and the endogenous fraction of PD and nitrogen losses using the technique of fasting. In Exp.I the animal were fed a diet based on corn silage and concentrate in the propor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/03/2011
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12. Efficiency of metabolizable energy utilization for maintenance and gain and evaluation of Small Ruminant Nutrition System model in Santa Ines sheep
This study was carried out to estimate efficiencies of the utilization of metabolizable energy for maintenance (k m) and weight gain (k g) and to evaluate the Small Ruminant Nutrition System (SRNS) model in predicting dry matter intake and average daily gain of growing Santa Ines sheep. Twenty-four non-castrated Santa Ines sheep, at 50 days of age and with a
Revista Brasileira de Zootecnia. Publicado em: 2011-11