Effects of Pine Needle Powder on Slaughter Performance Organ Index and Meat Quality in Broilers

Transcription

1 http / /xuebao. jxau. edu. cn Acta Agriculturae Universitatis Jiangxiensis E - mail ndxb7775@ sina. com Ⅰ Ⅱ Ⅲ Ⅳ Ⅰ Ⅱ Ⅲ Ⅳ 5 4 Ⅰ Ⅱ Ⅲ 1% 3% 5% + 56 d Ⅰ Ⅱ Ⅲ P > Ⅰ Ⅱ Ⅲ P < Ⅰ Ⅱ Ⅲ P > P > ph 4 7 1% 3% 5% 5% 7 3% 3% S A Effects of Pine Needle Powder on Slaughter Performance Organ Index and Meat Quality in Broilers XIONG Chun-mei 1 GUO Ai-wei 2 WU Pei-fu 2 CHENG Fen-fen 2 WANG Fa-yong 2 1. Human Resources Department Southwest Forestry University Kunming China 2. College of Life Science Southwest Forestry University Kunming China Abstract 80 eighteen - day - old broilers were randomly divided into 4 groups each with five duplicates each duplicate with 4. Upon the variance test examination the initiate weight of each group did not have distinctive difference P > In the randomized single - factor design the basic diets of each group were the same. For the experimental groupⅠ the diet was added with 1% of pine needle powder for the experimental groupⅡ 3% of pine needle powde was added for the experimental groupⅢ 5% of pine needle powder was added. Group 4 was the basic diet control group. The trial period was 8 weeks. The slaughter performance was observed. The results showed that the addtion of pine powder showed no significant influence on chicken slaughtering performance and meat quality. at 4-7 weeks 1% 3% 5% of the pine powder could promote effectively the development of the immune organs i. e spleen thymus and bursa promote the Z XKZ guoaw2008@ 126. com

2 body cellular immune level and improve the body s resistance especially in the 5% pine powder group the effect was obvious. Over 7 weeks in the 3% pine powder group the effect was obvious and the 3% group showed the best effect. Taking the slaughter performance immune function economic benefit into consideration in this experiment the addition of 3% of pine needle powder feeding chicke had obvious effect achieving the level of the antibiotics group. Key words pine needle powder broilers slaughter performance organs index meat quality Pinaceae Pinus 1 pine needle powder PNP pinus massoniana pinus tabulaeformis pinus yunnanensis pinus armandii E Pinus yunnanensis Ⅰ Ⅱ Ⅲ Ⅰ Ⅱ Ⅲ 5 4 P > ± 4 Ⅰ + 1% PNP Ⅱ + 3% PNP Ⅲ + 5% PNP + 1 Tab. 1 1 Experimental design Ⅰ Ⅱ Ⅲ Items Group Ⅰ Group Ⅱ Group Ⅲ Control group Group + 1% + 3% + 5% + /kg Initial weight ± ± ± ± d 3 d 3 ~ 6 7 NRC h NY /T % = / % = / % = / % = / % = / 100 5

3 5 951 % = / = g / kg Tab. 2 2 Composition and nutrient levels of the basal diet air - dry basis % 3 ~ ~ 6 7 Ingredients 3 ~ 6 weeks > 7 weeks Nutrient levels 3 ~ 6 weeks > 7 weeks Corn CP Soybean meal ME / MJ kg Fish meal Ca Soybean oil AP Lys Lys Met Met CaHPO Limestone Salt Premix Total kg A IU D IU E IU B mg K mg B mg B B mg mg mg C 8 mg Cu 8 mg Mn 60 mg Fe 80 mg Zn 40 mg Se mg I mg 2 Per kg diets contain VA IU VD IU VE IU VK4. 41 mg VB mg VB mg Folic acid mg Pant ot henic acid mg Vc 8 mg Cu 8 mg Mn 60 mg Fe 80 mg Zn 40 mg Se mg I mg. Values of nutrients levels are measured except ME SPSS11. 5 LSD ± Mean ± SD Ⅰ Ⅱ Ⅲ P > Ⅰ Ⅱ Ⅲ P <0. 05 Ⅰ Ⅱ Ⅲ P > Ⅲ P < P > Ⅲ P < P > Ⅰ P < P > Ⅰ P < Ⅱ Ⅲ P < P > 0. 7 Ⅰ Ⅱ Ⅲ P < P > Ⅰ Ⅱ Ⅲ P < P > Ⅰ P < P > Ⅰ Ⅲ P < P > Ⅰ P <

4 Ⅰ Ⅲ P < Ⅰ Ⅱ Ⅲ P < % % % P > P > Ⅰ Ⅱ Ⅲ P < Ⅲ 119% 9 Ⅱ Ⅰ P < P > 0. 7 Ⅲ Ⅰ Ⅱ P < Ⅲ % 9 P > χ ± SD n = 5 Tab. 3 Effects the pine needle powder on slaughter performance in broiler % weeks Items Ⅰ Group Ⅰ Ⅱ Group Ⅱ Ⅲ Group Ⅲ Control group 7 Dressed percentage ± ± ± ± weeks Percentage of half-eviscerated yield ± ab ± 2. 09ab ± a ± b Percentage of eviscerated yield ± ab ± ab ± a ± b Percentage of breast muscle ± a ± ab ± ab ± b Percentage of leg muscle ± a ± b ± b ± b Percentage of abdominal fat ± ± ± ± Dressed percentage ± b ± b ± b ± a 9 weeks Percentage of half-eviscerated yield ± ± ± ± Percentage of eviscerated yield ± a ± ab ± ab ± b Percentage of breast muscle ± ab ± a ± a ± b Percentage of leg muscle ± ± ± ± Percentage of abdominal fat ± ± ± ± P > P < 0. Same superscripts and no superscripts in the same row mean no significant difference P > different letters in the same row mean significant difference P < χ ± SD n = 5 Tab. 4 Effects the pine needle powder on the impact of broilers organs index g /kg weeks Items Ⅰ Group Ⅰ Ⅱ Group Ⅱ Ⅲ Group Ⅲ Control group 7 Cardiac index ± a ± b ± b ± b 7 weeks Liver index ± ± ± ± Lung index ± ± ± ± Kidney index ± ab ± a ± ab ± b Thymus index ± a ± a ± a ± b Bursa of fabricius index ± b ± b ± a ± b Spieen index ± b ± b ± a ± b 9 Cardiac index ± a ± ab ± ab ± b 9 weeks Liver index ± a ± ab ± b ± a Lung index ± ± ± ± Kidney index ± a ± ab ± b ± ab Thymus index ± ± ± ± Bursa of fabricius index ± b ± a ± ab ± ab Spieen index ± ± ± ± P > P < 0. Same superscripts and no superscripts in the same row mean no significant difference P > different letters in the same row mean significant difference P < P > ph Ⅰ Ⅲ P < 0. 05

5 5 953 Muscle position 5 χ ± SD n = 5 Tab. 5 Effect of pine needle powder on Meat quality of broilers Based on fresh sample g /kg Items Ⅰ Group Ⅰ Ⅱ Group Ⅱ Ⅲ Group Ⅲ Control group /% CP ± a ± a ± ab ± b Breast meat Thigh meat /% EE ± ± ± ± /% Ash ± ± ± ± ph ± ± ± ± /% CP ± ± ± ± /% EE ± b ± 0. 38a ± b ± a /% Ash ± ± ± ± ph ± ± ± ± P > P < 0. Same superscripts and no superscripts in the same row mean no significant difference P > different letters in the same row mean significant difference P < % 60% 9 Ⅰ Ⅱ Ⅲ 80% 60% 7 9 3% Rivas % % ph 4 7 1% 3% 5% 3% 1. J M J National Research Council. Nutrient requirements of Poultry M. Ninth Revised. National Academy Press Washington D C NY /T S. 2004

6 J J J J J J J J Rivas A L Fabricant J. Indications of immunodepression in chickens infected with various strains of Marek's disease virus J. Avian Disease J J J J 櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗櫗 J J J M M J M M M M J J l J J J