Comparative Slaughter
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Live weight, carcass, and meat evaluation of Nellore, Curraleiro Pé-Duro, and their crossbred products in Piauí State
ABSTRACT The objective of this study was to evaluate live weight and carcass traits, from birth to slaughter, and meat quality of Nellore (NEL), Curraleiro Pé-Duro (CPD), and crossbred (F1) products in the state of Piauí, Brazil. Progenies from CPD, NEL, and their F1 crossbred (½ NEL + ½ CPD), a total of 252, males and females, from birth to 24 months of
R. Bras. Zootec.. Publicado em: 2017-05
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2. Trace mineral requirements for growth of Moxotó goats grazing in the semiarid region of Brazil
ABSTRACT A comparative slaughter trial was conducted to estimate the body composition and net requirements of Cu, Zn, Mn, Fe, and Co for growth of castrated Moxotó goat kids, with15.69±0.78 kg initial body weight (BW), grazing in the semiarid region of Brazil. The baseline group consisted of four randomly selected kids (15.37±0.30 kg BW). Thirty-two kids
R. Bras. Zootec.. Publicado em: 2017-03
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3. Energy utilization of light and heavy weaned piglets subjected to different dietary energy levels
ABSTRACT This study was conducted to evaluate the effects of dietary metabolisable energy (ME: 3.25, 3.40, 3.55, or 3.70 Mcal kg−1) and weaning weight (WW: light 4.0±0.7 kg, and heavy: 6.3±0.6 kg) on productive response and energy utilization of weaned piglets. Sixty-four male piglets were housed in 32 metabolic cages (two animals per cage) during the fi
R. Bras. Zootec.. Publicado em: 2016-09
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4. Protein requirements for growth in male and female Saanen goats
The objective of this study was to determine the protein requirements for the growth of intact male, female, and castrated male Saanen goats weighing 30 to 45 kg of body weight (BW) and to compare estimates of the protein requirements for maintenance (NPm) by the comparative slaughter and nitrogen balance techniques. To determine the maintenance requirements
R. Bras. Zootec.. Publicado em: 2015-11
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5. Body chemical composition, tissue deposition rates and gain composition of young Nellore cattle selected for postweaning weight
Empty body and carcass chemical composition were determined in 67 Nellore bulls from Selection Nellore (NeS) and Control Nellore (NeC) herds of an animal breeding program for growth, slaughtered at 570 days of average age, after 100 days of feedlot. Selection Nellore animals had, respectively, 360 and 430 kg of initial and slaughter body weight, and NeC anim
R. Bras. Zootec.. Publicado em: 2014-04
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6. Requirement for maintenance and gain of crude protein for two genotypes of growing quails
The objective of this study was to estimate the requirements for maintenance and gain of crude protein in Japanese and European quails aged 16-36 days. To determine the maintenance requirements, one experiment was conducted in a completely randomized design with four decreasing feeding levels (100, 75, 50 and 25%) and four replicates per treatment. The metho
R. Bras. Zootec.. Publicado em: 2012-09
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7. Energy and protein nutritional requirements for Nellore bulls
The objective of this study was to determine the nutritional requirements of energy and protein and estimate the efficiencies of metabolizable energy utilization for fat and protein deposition, as well as for maintenance (k m) and growth (k g). An experiment of comparative slaughter was carried out with thirty-seven 14-month-old (±1 month) Nellore bulls wit
Revista Brasileira de Zootecnia. Publicado em: 2012-06
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8. Energy requirement for maintenance and gain for two genotypes of quails housed in different breeding rearing systems
This study aimed to estimate the energy requirements for maintenance and gain of Japanese and European quails under growth housed in two rearing systems: floor pens and cages. To determine maintenance requirements, two experiments were conducted with birds housed in cages in environmental chambers (experiment 1) and in floor pens at room temperature conditio
Revista Brasileira de Zootecnia. Publicado em: 2011-11
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9. Prediction equations to estimate the demand of energy and crude protein for maintenance, gain and egg production for laying Japanese quails
The study was conducted to estimate requirements of energy and crude protein for maintenance, weight gain and egg production of Japanese quails in the period of 67 to 107 days of age. Two experiments were performed: one, to determine the requirements for maintenance of protein, and the other, for energy. Experiments were conducted in a completely randomized
Revista Brasileira de Zootecnia. Publicado em: 2011-11
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10. Governança no sistema produtivo do peixe nas regiões de Dourados e Campo Grande, Mato Grosso do Sul: uma abordagem baseada na teoria econômica dos custos de transação e na teoria econômica das convenções
For the study of agribusiness different theoretical currents were present, focus is given to Agricultural industrial Systems (SAGs), which brings a theoretical framework with respectful authors, and one of the current theoretical study relevant to the SAGs is the Theory of Economic Costs of Trade (ECT). But the understanding of the production systems require
Publicado em: 2008
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11. Avaliação da qualidade do couro de bovinos de diferentes sistemas de produção na perspectiva do desenvolvimento local
This study aim to evaluate finishing system (precocious and young steers), sex (female, male) and diet effects on the leather characteristics of crossed bovines. It was used 45 animals, being 25 young steers feedlot system and 20 animals in pastures system, receiving supplement protein-energetic. The animals were slaughtered with 26 months and the leathers p
Publicado em: 2007
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12. Nutrient requirements of Nellore cattle, purebred and crossbred, of different sexual groups / Exigências nutricionais de bovinos Nelore, puros e cruzados, de diferentes classes sexuais
Foi conduzido um experimento de abate comparativo envolvendo 36 bovinos F1 Nelore x Red Angus (12 machos castrados, 12 machos inteiros e 12 fêmeas), com peso médio inicial de 274 kg, para determinar as exigências líquidas de proteína e energia para mantença e crescimento e as exigências líquidas para crescimento de macrominerais. Três animais de cad
Publicado em: 2007