Metabolic levels in adult homeotherms

Poczopko, P

doi:10.4098/at.arch.71-1

Cited by 38 publications

(16 citation statements)

References 16 publications

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“…On the other hand, a genetic group effect was observed on the β1 parameter of the model described above (P < 0.001), which indicates that genetic group influences the efficiency of use of metabolizable energy for maintenance. Generally, the estimated value of 75 kcal/EBW 0.75 /d for NEm is consistent, because it is similar to the values reported in the literature, as for example, the base metabolic rate, measured in a respirometric chamber, of 69 kcal/EBW 0.75 /d (Poczopko, 1971).…”

Section: A) Animals On Feedlotsupporting

confidence: 86%

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

Filho¹,

Silva²,

Gionbelli³

et al. 2016

Exigências Nutricionais De Zebuínos Puros E Cruzados - BR-CORTE

128

155

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Section: A) Animals On Feedlotsupporting

confidence: 86%

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

Filho¹,

Silva²,

Gionbelli³

et al. 2016

Exigências Nutricionais De Zebuínos Puros E Cruzados - BR-CORTE

128

155

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“…The value obtained is close to that of the basal metabolic rate suggested for warm-blooded adult mammals, when measured in respirometric chamber, of 69 kcal/EBW 0.75 /day (Poczopko, 1971).…”

Section: Resultssupporting

confidence: 60%

Energy and protein nutritional requirements for Nellore bulls

Silva¹,

Filho²,

Zanetti³

et al. 2012

R. Bras. Zootec.

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-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 with 259±24.9 kg. Animals were divided as follows: five to reference, four to maintenance level and twentyeight bulls feeding ad libitum. Bulls were also grouped in 4 different feedlot periods (42, 84, 126 and 168 days) for slaughter.The diet was composed of corn silage and concentrate, at a 55:45 ratio. After the slaughter, the left half carcasses were totally dissected for determination of body composition. The energy requirements for maintenance were obtained by exponentially relating the heat production and the metabolizable energy intake, while the energy requirements for gain (NE g ) were obtained according to empty body weight (EBW) and EBW gain (EBG). The net protein requirements for gain (NP g ) were estimated according to EBG and retained energy (RE). The net (NE m ) and metabolizable (ME m ) energy requirements for maintenance

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“…Schoener (1969,1971) reviewed other data and also found the three-fourths power generally usable. The reasonably possible errors are small over the wide range of sizes, as are differences among taxa within the classes (Kanwisher and Sundnes, 1966;Packard, 1968;Zar, 1969;Dawson and Hulbert, 1969;Poczopko, 1971). My global analysis of energy is as much to point out lacunae in our knowledge as to present positive results and an interpretative framework.…”

Section: Energy Relationshipsmentioning

confidence: 99%