过瘤胃脂肪对育肥牦牛生产性能、血清生化及屠宰性能的影响

doi:10.11843/j.issn.0366-6964.2025.08.025

Abstract

Abstract:

The aim of this study was to investigate the effect of dietary rumen-protected fat (RPF) addition on growth performance, serum biochemistry, slaughter performance and meat quality of fattening yaks. Twenty-four male yaks with similar body weight (275.63±9.84 kg) were randomly assigned to three treatment groups (8 in each group) and were fed basal diet (CON), basal diet with 1.5% RPF (RPF 1.5) supplementation, and basal diet with 3.0% RPF (RPF 3.0) supplementation, respectively. The experimental period was 90 d. All yaks were weighed at the beginning and the end of the experimental period, blood samples were collected from the jugular vein of yaks before morning feeding on the last trial day to analyse the differences in blood biochemistry and hormone secretion. Three yaks from each group were selected to determine the slaughter performance including carcass characteristics, and the longissimus dorsi muscle were collected for meat quality analysis. The results showed no significant impact of RPF supplementation on the feed intake, the average daily weight gain of fattening yaks was significantly increased by RPF addition, the average daily weight gain of yaks in the RPF3.0 group reached 900.69 g ·d^-1 which reduced the feed to gain ration significantly as well (P < 0.05). Blood urea nitrogen concentration in PRF groups were significantly higher than that in CON group (P < 0.05). Serum lipid metabolites triglycerides, cholesterol, and non-esterified fatty acids were significantly increased in the RPF 3.0 group (P < 0.05), and the lipid transport molecules very low-density lipoprotein and apolipoprotein B100 were significantly elevated in the serum of RPF1.5 and RPF3.0 yaks (P < 0.05). Dietary supplementation with 1.5% and 3.0% RPF significantly increased serum insulin and leptin secretion levels in fattening yaks (P < 0.05). The carcass traits were higher in the RPF1.5 and RPF 3.0 groups than those in the CON group, but did not reach a significant level. The yak carcass weight, and net meat weight in RPF 1.5 group as well as ribeye area, carcass weight, net meat weight, dressing percentage and net meat percentage in RPF 3.0 group were significantly higher (P < 0.05) than those of the CON group. The RPF 3.0 treatment significantly increased the cooked meat percentage of the longissimus dorsi muscle compared to the CON group (P < 0.05), meanwhile significantly decreased the muscle shear force (P < 0.05). In conclusion, under the condition of the current experiment, dietary supplementation of RPF can enhance the growth performance of fattening yaks, and improve slaughter performance and meat quality by promoting regulation hormone secretion and lipid metabolism.

Key words: fattening yak, rumen protected fat, growth performance, serum biochemistry, slaughter performance

CLC Number:

S823.85

YUAN Yue, ZHOU Jianxu, LUO Xiaolin, GUAN Jiuqiang, AN Tianwu, ZHAO Hongwen, BAI Qin, REN Zili, ZHANG Xiangfei, ZHAO Yanling. Effect of Rumen-Protected Fat on Growth Performance, Serum Biochemistry and Slaughter Performance of Fattening Yaks[J]. Acta Veterinaria et Zootechnica Sinica, 2025, 56(8): 3849-3860.

Figures/Tables 8

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References 57

1	尚恺圆, 江明锋, 官久强, 等. 围产期母体营养调控对犊牦牛生长发育、血清生化及免疫功能的影响[J]. 畜牧兽医学报, 2024, 55 (4): 1638- 1648. doi: 10.11843/j.issn.0366-6964.2024.04.026
	SHANG K Y , JIANG M F , GUAN J Q , et al. Effects of maternal nutritional regulation in transition period on growth and development, serum biochemistry and immune function of yak calves[J]. Acta Veterinaria et Zootechnica Sinica, 2024, 55 (4): 1638- 1648. doi: 10.11843/j.issn.0366-6964.2024.04.026
2	国家肉牛牦牛产业技术体系. 2016年度肉牛牦牛产业技术发展报告[J]. 中国畜牧业, 2017 (6): 22- 25.
	National Beef and Yak Industry Technology System . 2016 technical development report on beef and yak industry[J]. China Animal Industry, 2017 (6): 22- 25.
3	曹兵海, 李俊雅, 王之盛, 等. 2022年度肉牛牦牛产业技术发展报告[J]. 中国畜牧杂志, 2023, 59 (3): 330- 335.
	CAO B H , LI J Y , WANG Z S , et al. 2022 technical development report on beef and yak industry[J]. Chinese Journal of Animal Science, 2023, 59 (3): 330- 335.
4	SILVA L H P , RODRIGUES R T S , ASSIS D E F , et al. Explaining meat quality of bulls and steers by differential proteome and phosphoproteome analysis of skeletal muscle[J]. J Proteomics, 2019, 199, 51- 66. doi: 10.1016/j.jprot.2019.03.004
5	王书晴. 全价颗粒饲料中添加全棉籽对羊养分消化率、血液生化指标、肉品质及生产性能的应用研究[D]. 南京: 南京农业大学, 2019.
	WANG S Q. Effects of adding whole cottonseed in complete pellet feed on nutrient digewtibility, blood biochemicalindex, meat quality and production performance of sheep[D]. Nanjing: Nanjing Agricultural University, 2019. (in Chinese)
6	刘秋云, 曲平安. 日粮添加不同油脂原料对肉牛生长性能、养分消化及瘤胃发酵性能的影响[J]. 中国饲料, 2021 (8): 29- 32.
	LIU Q Y , QU P A . Effects of different oil sources in diets on growth performance, nutrient digestion and rumen fermentation of beef[J]. China Feed, 2021 (8): 29- 32.
7	李胜利. 添加玉米油对绵羊瘤胃发酵、营养代谢及组织脂肪酸含量影响的研究[D]. 呼和浩特: 内蒙古农业大学, 2010.
	LI S L. Effets of corn oil on the rumen fermentation, nutrient metabolism and fatty acid contents in sheep[D]. Hohhot: Inner Mongolia Agricultural University, 2010. (in Chinese)
8	曾泽, 张华琦, 桂干北, 等. 不同水平大豆油对肉牛瘤胃体外发酵的影响[J]. 饲料研究, 2021, 44 (19): 35- 39.
	ZENG Z , ZHANG H Q , GUI G B , et al. Effect of soybean oil at different levels on rumen fermentation characteristics of beef cattle in vitro[J]. Feed Research, 2021, 44 (19): 35- 39.
9	许鹏, 杨致玲, 曹名玉, 等. 饲粮添加不同类型及水平过瘤胃脂肪对荷斯坦奶牛生产性能及乳中脂肪酸组成的影响[J]. 动物营养学报, 2022, 34 (3): 1580- 1591.
	XU P , YANG Z L , CAO M Y , et al. Effects of adding different types and levels of rumen-protected fat on performance and fatty acid composition of milk in holstein dairy cows[J]. Chinese Journal of Animal Nutrition, 2022, 34 (03): 1580- 1591.
10	李彬, 郎侠, 孔伟. 日粮添加过瘤胃脂肪对母牛血清激素、养分表观消化率及繁殖性能的影响[J]. 饲料研究, 2023, 46 (1): 16- 19.
	LI B , LANG X , KONG W . Effect of dietary supplementation with rumen fat on serum hormone, nutrient digestibility and reproductive performance of cows[J]. Feed Research, 2023, 46 (1): 16- 19.
11	施建川. 过瘤胃脂肪和过瘤胃葡萄糖对杜蒙萨羊生长性能、营养物质表观消化率和肉品质的影响[D]. 银川: 宁夏大学, 2023.
	SHI J C. Effects of rumen-protected fat and rumen-protected glucose on growth performance, nutrient apparent digestibility and meat quality of Dumengsa sheep[D]. Yinchuan: Ningxia University, 2023. (in Chinese)
12	谭亚楠, 吴树峰, 杨文强, 等. 不同过瘤胃脂肪源对安格斯牛育肥性能及血液生化指标的影响[J]. 中国畜牧杂志, 2018, 54 (10): 79- 84.
	TAN Y N , WU S F , YANG W Q , et al. Effects of rumen protected fat on fattening performance, biochemical indices in Angus[J]. Chinese Journal of Animal Science, 2018, 54 (10): 79- 84.
13	中华人民共和国农业部. 肉牛饲养标准: NY/T 815-2004[S]. 北京: 中国农业出版社, 2004.
	The Ministry of Agriculture of the People's Republic of China. Feeding standard of beef cattle: NY/T 815-2004[S]. Beijing: China Agriculture Press, 2004. (in Chinese)
14	张丽英. 饲料分析及饲料质量检测技术[M]. 北京: 中国农业大学出版社, 2003.
	ZHANG L Y . Feed analysis and feed quality testing technology[M]. Beijing: China Agricultural University Press, 2003.
15	孙光明, 洛桑顿珠, 巴桑旺堆, 等. 饲粮能量水平对舍饲育肥牦牛生长性能、体尺增长及血清生化和内分泌激素指标的影响[J]. 动物营养学报, 2021, 33 (8): 4511- 4519.
	SUN G M , LUOSANG D Z , BASANG W D , et al. Effects of dietary energy level on growth performance, body size increasement and serum biochemical and endocrine hormone parameters of fattening yaks under stall-feeding[J]. Chinese Journal of Animal Nutrition, 2021, 33 (8): 4511- 4519.
16	王鸿泽. 日粮能量水平对舍饲育肥牦牛生产性能、瘤胃发酵及肌内脂肪代谢的影响[D]. 雅安: 四川农业大学, 2015.
	WANG H Z. Effects of dietary energy concentration on performance, rumen fermentation and intramuscular fat metabolism in yaks fed indoors[D]. Ya'an: Sichuan Agricultural University, 2015. (in Chinese)
17	王建东, 唐玉林, 侯鹏霞, 等. 过瘤胃脂肪对产后肉母牛生长性能、血清指标及繁殖性能的影响[J]. 动物营养学报, 2022, 34 (4): 2476- 2484.
	WANG J D , TANG Y L , HOU P X , et al. Effects of rumen bypass fat on growth performance, serum indexes and reproductive performance of postpartum beef cows[J]. Chinese Journal of Animal Nutrition, 2022, 34 (4): 2476- 2484.
18	吴树峰. 过瘤胃脂肪对奶牛、肉牛生产性能及乳肉品质的影响[D]. 太原: 山西农业大学, 2017.
	WU S F. Effect of rumen protected fat on dairy cow and beef cattle production performance and milk&meat quality[D]. Taiyuan: Shanxi Agricultural University, 2017. (in Chinese)
19	吴浩, 海鹏, 郭霏, 等. 青藏高原地区冷季补饲对牦牛生产性能和血液生化指标的影响[J]. 中国农学通报, 2022, 38 (20): 105- 111.
	WU H , HAI P , GUO F , et al. Effect of supplementary feed on growth performance, serum biochemical indices and economic benefit of grazing yaks in cold season[J]. Chinese Agricultural Science Bulletin, 2022, 38 (20): 105- 111.
20	LIU H , ZHOU J , DEGEN A , et al. A comparison of average daily gain, apparent digestibilities, energy balance, rumen fermentation parameters, and serum metabolites between yaks(Bos grunniens)and Qaidam cattle(Bos taurus)consuming diets differing in energy level[J]. Anim Nutr, 2023, 12, 77- 86. doi: 10.1016/j.aninu.2022.07.015
21	张振宇. 饲养方式和日粮能量对牦牛生产性能及瘤胃细菌多样性的影响[D]. 兰州: 西北民族大学, 2021.
	ZHANG Z Y. Effects of different feeding strategies and dietary energy levels on yak production performance and rumen bacteria diversity[D]. Lanzhou: Northwest Minzu University, 2021. (in Chinese)
22	孙德成, 魏曼琳, 赵智力, 等. 饲喂不同量的乳化棕榈油对奶牛BUN和MUN含量的影响[J]. 饲料工业, 2008 (7): 14- 17.
	SUN D C , WEI M L , ZHAO Z L , et al. Effects of feeding different amounts of emulsified palm oil on BUN and MUN content in dairy cows[J]. Feed Industry, 2008 (7): 14- 17.
23	何振富, 谢建鹏, 陈平, 等. 不同蛋白质、能量水平饲粮对舍饲育肥牦牛生长性能、养分表观消化率及血清生化指标的影响[J]. 动物营养学报, 2024, 36 (3): 1698- 1712.
	HE Z F , XIE J P , CHEN P , et al. Effects of different protein and energy levels of diets on growth performance, nutrient apparent digestibility and serum biochemical indexes of fattening yaks in shelter feeding[J]. Chinese Journal of Animal Nutrition, 2024, 36 (3): 1698- 1712.
24	FOTSCHKI B , OPYD P , JUŚKIEWICZ J , et al. Comparative effects of dietary hemp and poppy seed oil on lipid metabolism and the antioxidant status in lean and obese zucker rats[J]. Molecules, 2020, 25 (12): 2921. doi: 10.3390/molecules25122921
25	GARCIA-BOJALIL C M , STAPLES C R , RISCO C A , et al. Protein degradability and calcium salts of long-chain fatty acids in the diets of lactating dairy cows: productive responses[J]. J Dairy Sci, 1998, 81 (5): 1374- 1384. doi: 10.3168/jds.S0022-0302(98)75701-7
26	曹名玉, 杨致玲, 谭亚楠, 等. 脂肪添加水平及不同脂肪源添加比例对荷斯坦牛养分表观消化率及血清生化指标的影响[J]. 动物营养学报, 2021, 33 (3): 1523- 1533.
	CAO M Y , YANG Z L , TAN Y N , et al. Effects of fat addition level and different ratios of fat sources on nutrient apparent digestibility and serum biochemical indices of holstein steers[J]. Chinese Journal of Animal Nutrition, 2021, 33 (3): 1523- 1533.
27	柏琴, 张翔飞, 罗晓林, 等. 不同年龄段放牧牦牛生长发育及肌内脂肪沉积规律研究[J]. 动物营养学报, 2022, 34 (8): 5126- 5135.
	BAI Q , ZHANG X F , LUO X L , et al. Study on growth and development and deposition rule of intramuscular fat of grazing yaks at different ages[J]. Chinese Journal of Animal Nutrition, 2022, 34 (8): 5126- 5135.
28	OSPINA P A , NYDAM D V , STOKOL T , et al. Evaluation of nonesterified fatty acids andβ-hydroxybutyrate in transition dairy cattle in the northeastern United States: Critical thresholds for prediction of clinical diseases[J]. J Dairy Sci, 2010, 93 (2): 546- 554. doi: 10.3168/jds.2009-2277
29	SELBERG K T , LOWE A C , STAPLES C R , et al. Production and metabolic responses of periparturient Holstein cows to dietary conjugated linoleic acid and trans-octadecenoic acids[J]. J Dairy Sci, 2004, 87 (1): 158- 168. doi: 10.3168/jds.S0022-0302(04)73153-7
30	BAUMGARD L H , CORL B A , DWYER D A , et al. Identification of the conjugated linoleic acid isomer that inhibits milk fat synthesis[J]. Am J Physiol Regul Integr Comp Physiol, 2000, 278 (1): R179- R184. doi: 10.1152/ajpregu.2000.278.1.R179
31	BAUMGARD L H , MATITASHVILI E , CORL B A , et al. Trans-10, cis-12 conjugated linoleic acid decreases lipogenic rates and expression of genes involved in milk lipid synthesis in dairy cows[J]. J Dairy Sci, 2002, 85 (9): 2155- 2163. doi: 10.3168/jds.S0022-0302(02)74294-X
32	HEEREN J , SCHEJA L . Metabolic-associated fatty liver disease and lipoprotein metabolism[J]. Mol Metab, 2021, 50, 101238. doi: 10.1016/j.molmet.2021.101238
33	闻治国, 侯水生, 谢明, 等. 肝脏极低密度脂蛋白合成和分泌的研究进展[J]. 动物营养学报, 2011, 23 (11): 1854- 1861.
	WEN Z G , HOU S S , XIE M , et al. Synthesis and secretion of hepatic very low-density lipoprotein: a review[J]. Chinese Journal of Animal Nutrition, 2011, 23 (11): 1854- 1861.
34	张臻. 叶酸和棕榈脂肪粉调控围产期奶牛肝脏脂质代谢的机制研究[D]. 太原: 山西农业大学, 2021.
	ZHANG Z. Mechanism research offolic acid and palm fat powder regulating hepatie lipid metabolism of transition dairy cows[D]. Taiyuan: Shanxi Agricultural University, 2021. (in Chinese)
35	AKERS R M . Major advances associated with hormone and growth factor regulation of mammary growth and lactation in dairy cows[J]. J Dairy Sci, 2006, 89 (4): 1222- 1234. doi: 10.3168/jds.S0022-0302(06)72191-9
36	GUO Z , CHENG X , FENG X , et al. The mTORC1/4EBP1/PPARγaxis mediates insulin-induced lipogenesis by regulating lipogenic gene expression in bovine mammary epithelial cells[J]. J Agric Food Chem, 2019, 67 (21): 6007- 6018. doi: 10.1021/acs.jafc.9b01411
37	张建勋. 不同季节牦牛补饲效果及其机理研究[D]. 雅安: 四川农业大学, 2013.
	ZHANG J X. Mechanism of the effects of seasonal supplementation on yak performance[D]. Ya'an: Sichuan Agricultural University, 2013. (in Chinese)
38	HARRIS R B S . Direct and indirect effects of leptin on adipocyte metabolism[J]. Biochim Biophys Acta, 2014, 1842 (3): 414- 423. doi: 10.1016/j.bbadis.2013.05.009
39	LONG N M , HILL G M , BAKER J F , et al. Reproductive performance of beef heifers supplemented with corn gluten feed and rumen-protected fat before breeding[J]. Prof Anim Sci, 2007, 23 (4): 316- 324. doi: 10.15232/S1080-7446(15)30984-0
40	FRIEDMAN J M , HALAAS J L . Leptin and the regulation of body weight in mammals[J]. Nature, 1998, 395 (6704): 763- 770. doi: 10.1038/27376
41	任建刚, 关鹏, 黄建智, 等. 饲粮能量水平对安格斯公牛育肥性能及血清生化指标的影响[J]. 中国畜牧兽医, 2023, 50 (3): 966- 976.
	REN J G , GUAN P , HUANG J Z , et al. Effects of dietary energy level on growth-fattening performance and serum biochemical indices of angus bulls[J]. China Animal Husbandry&Veterinary Medicine, 2023, 50 (3): 966- 976.
42	DA SILVA A P V , DIAS A M , ITAVO L C V , et al. The influence of protected fat in supplements on the performance and carcass characteristics of Nellore beef bulls in tropical pasture[J]. Trop Anim Health Prod, 2022, 54 (2): 86. doi: 10.1007/s11250-022-03072-3
43	SUTTER F , CASUTT M M , OSSOWSKI D A , et al. Comparative evaluation of rumen-protected fat, coconut oil and various oilseeds supplemented to fattening bulls: 1.Effects on growth, carcass and meat quality[J]. Arch Tierernahr, 2000, 53 (1): 1- 23. doi: 10.1080/17450390009381935
44	BAKKER C E , BLAIR A D , GRUBBS J K , et al. Effects of rumen-protected long-chain fatty acid supplementation during the finishing phase of beef steers on live performance, carcass characteristics, beef quality, and serum fatty acid profile[J]. Transl Anim Sci, 2019, 3 (4): 1585- 1592. doi: 10.1093/tas/txz136
45	姬秋梅, 普穷, 达娃央拉, 等. 西藏三大优良类群牦牛的产肉性能及肉品质分析[J]. 中国草食动物, 2000 (5): 3- 6.
	JI Q M , PU Q , DAWA Y L , et al. Analysis of producing flesh and flesh quality in three fine kinds groups yaks of Tibet[J]. China Herbivore Science, 2000 (5): 3- 6.
46	刘凯. 甜菜碱和过瘤胃脂肪对育肥羊生产性能和肌肉脂肪酸组成的影响[D]. 兰州: 兰州大学, 2016.
	LIU K. Effects of betaine and rumen protected fat on the performance and the muscle fatty acids composition of finishing sheep[D]. Lanzhou: Lanzhou University, 2016. (in Chinese)
47	潘越博, 黄龙艳, 王玺年, 等. 肉羊不同杂交组合胴体分割、肉质和熟肉率的试验研究[J]. 中国饲料, 2024 (14): 29- 32.
	PAN Y B , HUANG L Y , WANG X N , et al. Experimental study on carcass segmentation, meat quality, and mature meat rate of F1 sheep with different hybrid combinations[J]. China Feed, 2024 (14): 29- 32.
48	王磊, 马斌, 田春花, 等. 张掖肉牛宰前体尺性状、胴体性状和肉质性状的典型相关分析[J]. 中国畜禽种业, 2024, 20 (7): 16- 25.
	WANG L , MA B , TIAN C H , et al. Canonical correlation analysis of body size traits, carcass traits and meat quality traits of zhangye beef cattle before slaughter[J]. The Chinese Livestock and Poultry Breeding, 2024, 20 (7): 16- 25.
49	计成. 动物营养学[M]. 北京: 高等教育出版社, 2008: 77- 86.
	JI C . Animal Nutrition[M]. Beijing: Higher Education Press, 2008: 77- 86.
50	杨致玲, 吴树峰, 谭亚楠, 等. 不同过瘤胃脂肪源对安格斯牛肉品质的影响[J]. 中国畜牧杂志, 2018, 54 (12): 83- 87.
	YANG Z L , WU S F , TAN Y N , et al. Effect of different superrumen fat sources on Angus beef quality[J]. Chinese Journal of Animal Science, 2018, 54 (12): 83- 87.
51	韩雪. 日粮添加酵母培养物对舍饲育肥羊生长性能和肉品质及脂肪代谢的影响[D]. 长春: 吉林农业大学, 2023.
	HAN X. Effects of dietary yeast culture on growth performance, meat quality and fat metabolism of yard finishing sheep[D]. Changchun: Jilin Agricultural University, 2023. (in Chinese)
52	柏琴. 不同年龄牦牛肌内脂肪(IMF)沉积规律及其脂肪代谢机制研究[D]. 成都: 西南民族大学, 2023.
	BAI Q. Intramuscular fat(IMF)deposition pattern and its fat metabolism mechanism in yaks of different ages[D]. Chengdu: Southwest Minzu University, 2023. (in Chinese)
53	WOOD J D , ENSER M , FISHER A V , et al. Fat deposition, fatty acid composition and meat quality: A review[J]. Meat Sci, 2008, 78 (4): 343- 358. doi: 10.1016/j.meatsci.2007.07.019
54	PURCHAS R W , BURNHAM D L , MORRIS S T . Effects of growth potential and growth path on tenderness of beef longissimus muscle from bulls and steers1[J]. J Anim Sci, 2002, 80 (12): 3211- 3221. doi: 10.2527/2002.80123211x
55	李铸, 吴锦波, 刘建, 等. 金川牦牛和麦洼牦牛肌肉水分、pH值、色差及肌纤维特性分析[J]. 现代畜牧兽医, 2022 (10): 38- 42.
	LI Z , WU J B , LIU J , et al. Study on moisture content, pH value, color difference and muscle fiber characteristics of Jinchuan yak and Maiwa yak[J]. Modern Journal of Animal Husbandry and Veterinary Medicine, 2022 (10): 38- 42.
56	郝婉名, 祝超智, 赵改名, 等. 肌肉嫩度的影响因素及pH调节牛肉嫩化技术研究进展[J]. 食品工业科技, 2019, 40 (24): 349- 354.
	HAO W M , ZHU C Z , ZHAO G M , et al. Research progress on the influence factors of the tenderness of the muscle and the technology of adjusting the tenderization of the beef[J]. Science and Technology of Food Industry, 2019, 40 (24): 349- 354.
57	周浩迪. 血浆代谢组学与猪肉pH及肉色品质的关系研究[D]. 雅安: 四川农业大学, 2022.
	ZHOU H D. Study on the relationship between plasma metabolomics and pork pH and meat color quality[D]. Ya'an: Sichuan Agricultural University, 2022. (in Chinese)

项目 Item	含量 Content
原料Ingredient
玉米Corn	31.23
小麦麸Wheat bran	5.14
豆粕Soybean meal	2.97
菜籽饼Rapeseed meal	3.17
发酵蛋白饲料Fermented protein concentrate	3.02
酵母硒Yeast selenium	0.11
碳酸钙CaCO₃	0.23
小苏打NaHCO₃	0.73
食盐NaCl	0.57
预混料Premix¹⁾	2.83
燕麦干草Oat hay	50.00
合计Total	100.00
营养水平Nutrient levels²⁾
综合净能/(MJ·kg^-1) NEmf	5.35
粗蛋白CP	12.18
粗脂肪EE	2.72
中性洗涤纤维NDF	38.72
酸性洗涤纤维ADF	23.82
钙Ca	0.60
磷P	0.36

项目 Item	对照组 CON	1.5%RPF添加组 RPF1.5	3.0%RPF添加组 RPF3.0	均值标准误 SEM	P值 P-value
始重/kg IBW	274.56	274.88	277.44	3.56	0.828
末重/kg FBW	343.31^b	350.69^ab	358.50^a	4.03	0.048
增重/kg WG	68.75^b	75.81^a	81.06^a	2.09	0.002
平均日增重/(g·d^－1) ADG	763.89^b	842.36^a	900.69^a	23.2	0.002
干物质采食量/(kg·d^－1) DMI	8.12	8.05	7.96	0.09	0.484
料重比F/G	10.71^a	9.62^b	8.87^b	0.27	＜0.001

项目 Item	对照组 CON	1.5%RPF添加组 RPF1.5	3.0%RPF添加组 RPF3.0	均值标准误 SEM	P值 P-value
葡萄糖/(mmol·L^-1) GLU	3.85	3.25	3.45	0.25	0.309
尿素氮/(mmol·L^-1) BUN	7.14^b	11.65^a	10.22^a	0.35	0.001
白蛋白/(g·L^-1) ALB	22.70	24.50	23.27	1.16	0.635
球蛋白/(g·L^-1) GLB	24.23	25.07	24.33	0.74	0.704
总蛋白/(g·L^-1) TP	46.93	49.57	47.60	1.06	0.324

项目 Item	对照组 CON	1.5%RPF添加组 RPF1.5	3.0%RPF添加组 RPF3.0	均值标准误 SEM	P值 P-value
甘油三酯/(mmol·L^-1) TG	0.34^b	0.42^b	0.62^a	0.03	0.003
胆固醇/(mmol·L^-1) CHO	1.33^b	1.56^a	1.57^a	0.03	0.006
非酯化脂肪酸/(mmol·L^-1) NEFA	0.34^b	0.42^ab	0.45^a	0.02	0.050
β-羟基丁酸/(μmol·L^-1) BHBA	340.24	313.21	305.87	21.64	0.543
极低密度脂蛋白/(mmol·L^-1) VLDL	25.67^b	30.08^a	30.76^a	0.72	0.007
载脂蛋白B100/(μg·mL^-1) APOB100	23.21^b	29.69^a	30.11^a	1.38	0.035

项目 Item	对照组 CON	1.5%RPF添加组 RPF1.5	3.0%RPF添加组 RPF3.0	均值标准误 SEM	P值 P-value
胰高血糖素/(pg·mL^-1) GC	242.59	241.24	208.79	16.68	0.400
胰岛素/(mIU·L^-1) INS	38.95^b	44.93^a	46.39^a	1.24	0.012
胰岛素样生长因子-Ⅰ/(ng·mL^-1) IGF-Ⅰ	280.38	226.85	243.42	13.29	0.083
瘦素/(ng·mL^-1) LEP	5.30^b	6.02^a	6.52^a	0.15	0.006

Effect of Rumen-Protected Fat on Growth Performance, Serum Biochemistry and Slaughter Performance of Fattening Yaks

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项目 Item	对照组 CON	1.5%RPF添加组 RPF1.5	3.0%RPF添加组 RPF3.0	均值标准误 SEM	P值 P-value
胴体长/cm Carcass length	124.33	125.00	126.67	1.11	0.388
胴体胸深/cm Chest depth of carcass	63.00	63.83	63.67	0.56	0.602
胴体深/cm Carcass depth	60.83	61.50	61.83	0.57	0.492
胴体后腿围/cm Hind leg girth of carcass	49.33	50.33	51.50	0.57	0.119
胴体后腿长/cm Hind leg length of carcass	61.17	61.17	62.50	0.77	0.455
胴体后腿宽/cm Hind leg breadth	20.83	21.33	21.83	0.60	0.559
大腿肌肉厚/cm Thigh muscle thickness	10.67	11.17	11.33	0.41	0.524
眼肌面积/cm² Loin eye area	43.27^b	44.75^b	46.78^a	0.60	0.015

项目 Item	对照组 CON	1.5%RPF添加组 RPF1.5	3.0%RPF添加组 RPF3.0	均值标准误 SEM	P值 P-value
内脏脂肪重/kg Visceral fat weight	2.70^b	3.66^a	4.07^a	0.17	0.004
胴体重/kg Carcass weight	174.36^c	180.64^b	187.66^a	0.98	0.004
净肉重/kg Net meat weight	148.27^c	154.05^b	161.20^a	1.12	0.004
骨重/kg Bone weight	26.09	26.59	26.46	0.61	0.855
肉骨比Meat-bone ratio	5.68	5.80	6.10	0.15	0.236
屠宰率/% Dressing percentage	50.80^b	51.71^ab	52.27^a	0.21	0.039
净肉率/% Net meat percentage	43.20^b	44.10^ab	44.90^a	0.18	0.016
胴体产肉率/% Meat production percentage of carcass	85.04	85.28	85.90	0.33	0.254

项目 Item		对照组 CON	1.5%RPF添加组 RPF1.5	3.0%RPF添加组 RPF3.0	均值标准误 SEM	P值 P-value
熟肉率/% Cooked meat rate		62.39^b	65.87^ab	67.80^a	1.23	0.063
剪切力/N Shear force		7.49^a	6.58^ab	5.78^b	0.08	0.017
pH		5.93	5.78	5.97	0.17	0.748
肉色	亮度L^*	28.87	28.24	28.40	0.90	0.916
Meat color	红度a^*	9.47	9.60	10.30	0.41	0.411
	黄度b^*	8.31	9.72	9.43	0.47	0.242