Composição corporal e exigências nutricionais de caprinos Saanen machos dos 30 aos 45 kg de peso vivo
Carregando...
Data
2011-12-13
Autores
Gomes, Helen Fernanda Barros [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
Este trabalho teve por objetivo determinar a composição corporal e estimar as exigências líquidas de energia, proteína e minerais, para mantença e ganho de peso de caprinos Saanen, machos não castrados, dos 30 aos 45 kg de peso vivo. As exigências foram divididas em mantença e ganho de peso, de acordo com método fatorial. No cálculo das exigências de mantença foram utilizados 18 animais, subdivididos em três níveis nutricionais: alimentados ad libitum, com 30 e 60% de restrição, e no cálculo das exigências de ganho foram utilizados 18 animais, alimentados à vontade e abatidos com 30, 37,5 e 45 kg de peso vivo, e as avaliações foram feitas pelo método direto por meio de abate comparativo. A composição corporal dos animais variou de: 60 a 57% de água, 30 a 42% de matéria seca, 6,79 a 6,74% de matéria mineral, 8,8 a 14,6% de gordura e 24,7 a 27,5% de proteína; para animais de 30 a 45 kg de peso vivo. As exigências líquidas diárias para mantença de caprinos Saanen machos, dos 30 aos 45 kg de peso vivo, foram 0,376 g de PLm/kg PCV0,75 e 48,24 kcal de ELm/kg PCV0,75. Para ganho de peso os valores observados foram de 298 a 333 g PLg/dia/kg ganho de peso de corpo vazio, o que é equivalente a 230,32 a 292,14 g PLg/dia/kg ganho de peso vivo. E exigências de 2,7 a 3,4 Mcal ELg/kg ganho de peso de corpo vazio; o que equivale a 2,1 a 3,0 Mcal de ELg/dia/kg de ganho de peso vivo. Os resultados encontrados mostram que caprinos, machos, na fase final de crescimento requerem menos proteína e energia, que cabritos jovens na fase inicial de crescimento. Para minerais, as exigências líquidas diárias para mantença variaram de: 0,80 a 1,20 g de ferro; 0,05 a 0,07 g de potássio; 0,58 a 0,87 g de cálcio; 0,01 a 0,02 g de magnésio; 0,02 a 0,03 g de cobre; 0,02 a 0,03 g de zinco; e 0,005 a 0,008 g de manganês, para caprinos Saanen...
This experiment aimed to determine body composition and estimate the net requirements of energy, protein and minerals for maintenance and gain of Saanen kid goats, males, on final growth phase, with live weight from 30 to 45 kg. The requirements are divided into maintenance and gain, calculated by the factorial method. In the maintenance requirements were used 18 animals, subdivided into three nutritional levels: ad libitum, 30 and 60% of food restriction, and in the gain requirements were used 18 animals fed ad libitum and slaughtered at 30, 37.5 and 45 kg of live weight, and assessments were made by direct method using comparative slaughters. Animals body composition ranged from 60 to 57% water, 30 to 42% dry matter, 6.79 to 6.74% ash, 8.8 to 14.6% fat and 24.7 to 27.5% protein, for animals from 30 to 45 kg of body weight. Daily net requirements for maintenance were: 0.376 g net protein/kg EBW0.75 and 48.24 kcal net energy/kg EBW0.75, animals from 30 to 45 kg live weight. To body weight gain, values found were of 298 to 333 g daily net protein/kg of EBW gain, which the same of 230.32 and 292.14 g to daily net protein/kg live weight gain. And daily net energy requirements of 2.7 to 3.4 Mcal/kg EBW gain, which the same of 2.1 to 3.0 Mcal/kg live weight. That results showing that animals, male goats, from 30 to 45 kg of body weight needed less protein and energy than young kids. To minerals, the requirements had varied between 0.80 and 1.20 g of iron, 0.05 and 0.07 g of potassium, 0.58 and 0.87 g of calcium, 0.01 and 0.02 g of magnesium, 0.02 and 0.03 g of copper, 0.02 and 0.03 mg of zinc, 0.005 and 0.008 g of manganese, respectively, for goats with 30 and 45 kg of live weight. Gain requirements found, for each kilo live weight gain, were: 4.17 and 3.96 g of iron, 1.60 and 1.64 g... (Complete abstract click electronic access below)
This experiment aimed to determine body composition and estimate the net requirements of energy, protein and minerals for maintenance and gain of Saanen kid goats, males, on final growth phase, with live weight from 30 to 45 kg. The requirements are divided into maintenance and gain, calculated by the factorial method. In the maintenance requirements were used 18 animals, subdivided into three nutritional levels: ad libitum, 30 and 60% of food restriction, and in the gain requirements were used 18 animals fed ad libitum and slaughtered at 30, 37.5 and 45 kg of live weight, and assessments were made by direct method using comparative slaughters. Animals body composition ranged from 60 to 57% water, 30 to 42% dry matter, 6.79 to 6.74% ash, 8.8 to 14.6% fat and 24.7 to 27.5% protein, for animals from 30 to 45 kg of body weight. Daily net requirements for maintenance were: 0.376 g net protein/kg EBW0.75 and 48.24 kcal net energy/kg EBW0.75, animals from 30 to 45 kg live weight. To body weight gain, values found were of 298 to 333 g daily net protein/kg of EBW gain, which the same of 230.32 and 292.14 g to daily net protein/kg live weight gain. And daily net energy requirements of 2.7 to 3.4 Mcal/kg EBW gain, which the same of 2.1 to 3.0 Mcal/kg live weight. That results showing that animals, male goats, from 30 to 45 kg of body weight needed less protein and energy than young kids. To minerals, the requirements had varied between 0.80 and 1.20 g of iron, 0.05 and 0.07 g of potassium, 0.58 and 0.87 g of calcium, 0.01 and 0.02 g of magnesium, 0.02 and 0.03 g of copper, 0.02 and 0.03 mg of zinc, 0.005 and 0.008 g of manganese, respectively, for goats with 30 and 45 kg of live weight. Gain requirements found, for each kilo live weight gain, were: 4.17 and 3.96 g of iron, 1.60 and 1.64 g... (Complete abstract click electronic access below)
Descrição
Palavras-chave
Caprino - Comportamento, Minerais na nutrição animal, Proteinas na nutrição animal, Animal behavior
Como citar
GOMES, Helen Fernanda Barros. Composição corporal e exigências nutricionais de caprinos Saanen machos dos 30 aos 45 kg de peso vivo. 2011. xv, 117 f. Tese (doutorado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2011.