Effects of Body Weight on Total Heat Production and Fasting Heat Production in Net Energy Evaluation of Broilers

LIU Wei, CAI Huiyi, YAN Haijie, LIU Guohua, ZHANG Shu, YANG Huaming

doi:10.3969/j.issn.1006-267x.2014.08.013

Chinese Journal of Animal Nutrition >

2014 , Vol. 26 >Issue 8: 2118 - 2125

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.08.013

Poultry Nutrition

Effects of Body Weight on Total Heat Production and Fasting Heat Production in Net Energy Evaluation of Broilers

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1. Key Laboratory of Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
2. Jilin Academy of Agricultural Sciences, Changchun 130033, China

Received date: 2014-03-06

Online published: 2014-08-13

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Abstract

This experiment was investigated to study the effects of body weight (BW) on total heat production (THP), fasting heat production (FHP) and fasting duration of broilers at 4 to 7 weeks of age by a patented open-circuit respiratory calorimetry equipment. A single factor randomized design had been taken, a total of 48 male Arbor Acre broilers at 4 to 7 weeks of age were selected, on the first day of each week, 12 birds with similar BW were assigned to 1 group, those birds were divided into 4 groups (6 replicates in each group and 2 birds in each replicate): groups A, B, C and D, and each group was one experimental period. One group of 12 broilers was randomly sent into 6 same respiratory chambers for energy metabolism test. For the tested birds, after a 1-day adaptation period, 3 days THP for feeding and another 3 days for fasting were recorded. After the broilers fed in the fifth day of nine o'clock, another 72 h for fasting was recorded and every 12 h was a statistical unit. The results showed as follows: 1) during fasting 12 to 36 h, the O₂ consumption, CO₂ production and FHP in each group were gradually decreased, those indexes in groups A and C were not different after fasting 12 and 24 h (P>0.05), but were significantly higher than fasting 36 h (P<0.05), and those indexes in groups C and D were sharply decreased after fasting 12, 24 and 36 h (P<0.05). Those indexes in group A were not different after fasting 48 and 72 h(P>0.05), but were significantly decreased after fasting 60 h (P<0.05). Those indexes in group B were gradually decreased after fasting 36, 48 and 72 h (P>0.05), but were sharply decreased after fasting 60 h (P<0.05). Those indexes in groups C and D were not different after fasting 48 h (P>0.05), but were significantly different before fasting 36 h (P<0.05). During fasting 12 to 72 h, the respiration quotient (RQ) of broilers were 0.65 to 0.75. There was no significant profile in RQ between different BW broilers during the same fasting duration. 2) The linear regression model of lgFHP (y) and lgBW (x) was y=0.737x-0.332 (R²=0.99, P<0.01). 3) The FHP of metabolic BW in each group were not different after fasting 48 h (P>0.05) and were close to 0.47 MJ/(kg BW^0.74·d) calculated from regression equation. 4) With the BW growing, the O₂ consumption, CO₂ production, THP and FHP of broilers at 4 to 7 weeks of age were significantly increased(P<0.05). It is concluded that a fasting of 48 h is suitable for broilers' net energy measurement at 4 to 7 weeks of age. The linear regression model shows that the exponential coefficient of metabolic BW is 0.74 and the FHP is 0.47 MJ/(kg BW^0.74·d). The BW has a significant effect on THP, FHP and fasting duration of AA broilers at 4 to 7 weeks of age.

Key words： broilers; body weight; fasting duration; heat production; net energy

Cite this article

LIU Wei, CAI Huiyi, YAN Haijie, LIU Guohua, ZHANG Shu, YANG Huaming . Effects of Body Weight on Total Heat Production and Fasting Heat Production in Net Energy Evaluation of Broilers[J]. Chinese Journal of Animal Nutrition, 2014 , 26(8) : 2118 -2125 . DOI: 10.3969/j.issn.1006-267x.2014.08.013

References

[1] MACLEOD M G, THEODOROU M K, FRANCE J.Modelling the utilization of dietary energy and amino acids by poultry[M]//THEODOROU M K, FRANCE J.Feeding systems and feed evaluation models.Wallingford:CAB International, 1999:393-412.

[2] O'NEILL S J B, JACKSON N.The heat production of hens and cockerels maintained for an extended period of time at a constant environmental temperature of 23 C[J].The Journal of Agricultural Science, 1974, 82(2):549-552.

[3] JOHNSON R J, FARRELL D J.Energy metabolism of groups of broiler breeders in open-circuit respiration chambers[J].British Poultry Science, 1983, 24(4):439-453.

[4] 王旭莉.蛋鸡玉米和豆粕净能值的测定及其净能体系的应用[D].硕士学位论文.杨凌:西北农林科技大学, 2010.

[5] WARING J J, BROWN W O.Calorimetric studies on the utilization of dietary energy by the laying White Leghorn hen in relation to plane of nutrition and environmental temperature[J].The Journal of Agricultural Science, 1967, 68(1):149-155.

[6] O'NEILL S J B, BALNAVE D, JACKSON N.The influence of feathering and environmental temperature on the heat production and efficiency of utilization of metabolizable energy by the mature cockerel[J].The Journal of Agricultural Science, 1971, 77(2):293-305.

[7] VALENCIA M E, MAIORINO P M, REID B L.Energy utilization in laying hens Ⅲ.Effect of dietary protein level at 21 and 32 C[J].Poultry Science, 1980, 59(11):2508-2513.

[8] LI Y, ITO T, YAMAMOTO S.Use of limited daily access to food in measuring the heat production associated with food intake in laying hens[J].British Poultry Science, 1991, 32(4):829-839.

[9] SHANNON D W F, BROWN W O.Calorimetric studies on the effect of dietary energy source and environmental temperature on the metabolic efficiency of energy utilization by mature Light Sussex cockerels[J].The Journal of Agricultural Science, 1969, 72(3):479-489.

[10] LUNDY H, MACLEOD M G, JEWITT T R.An automated multi-calorimeter system:preliminary experiments on laying hens[J].British Poultry Science, 1978, 19(2):173-186.

[11] MACLEOD M G.Effects of feeding by crop intubation on energy metabolism and physical activity in domestic cockerels[J].British Poultry Science, 1991, 32(5):1089-1095.

[12] 宁冬, 呙于明, 王永伟, 等.间接测热法和回归法估测棉籽粕和玉米蛋白粉在蛋鸡中的代谢能和净能值[J].动物营养学报, 2013, 25(5):968-977.

[13] CLOSE W H, MOUNT L E.The rate of heat loss during fasting in the growing pig[J].British Journal of Nutrition, 1975, 34(2):279-290.

[14] 胡琴.生长肥育猪玉米和豆粕净能值的测定[D].博士学位论文.北京:中国农业大学, 2012.

[15] BROUWER E.Report of sub-committee on constants and factors[C]//BLAXTER K L.Energy metabolism.London:Academic Press, 1965:441-443.

[16] 杨嘉实, 冯仰廉.畜禽能量代谢[M].北京:中国农业出版社, 2002:31-33.

[17] TESS M W, DICKERSON G E, NIENABER J A, et al.The effects of body composition on fasting heat production in pigs[J].Journal of Animal Science, 1984, 58(1):99-110.

[18] VAN MILGEN J, BERNIER J F, LECOZLER Y, et al.Major determinants of fasting heat production and energetic cost of activity in growing pigs of different body weight and breed/castration combination[J].British Journal of Nutrition, 1998, 79(6):509-517.

[19] NOBLET J, SHI X S, DUBOIS S.Effect of body weight on net energy value of feeds for growing pigs[J].Journal of Animal Science, 1994, 72(3):648-657.

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