久久精品一区二区,被男人大鸡巴插逼电影,欧美高清无码在线免费观看,日本一区色综合

資料下載

Data download

當(dāng)前位置:首頁資料下載上海騰拔質(zhì)構(gòu)儀用于測定黃羽肉雞硬度、彈性、回復(fù)性、咀嚼性等指標

上海騰拔質(zhì)構(gòu)儀用于測定黃羽肉雞硬度、彈性、回復(fù)性、咀嚼性等指標

發(fā)布時間:2024/9/27點擊次數(shù):931

ABSTRACT

The occurrence of heat stress in poultry houses is inevitable and leads to oxidative stress in the birds. Lycopene, a natural hydrocarbon carotenoid, possesses potent antioxidant properties. This study aimed to investigate the impact of lycopene on growth performance, meat quality, cecal microflora, and liver metabolome in broilers subjected to heat stress. A total of 480 yellow feather broilers were randomly allocated into 4 treatment groups: birds fed standard diet (Con), birds fed standard diet and supplemented with lycopene (Lyc), birds fed standard diet and subjected to heat stress (Hs), and birds fed with lycopene and subjected to heat stress (Hs-Lyc). As compared with the normal temperature groups, Hs decreased the average daily gain (ADG) of birds during d 1 to 28, lowered the pH value either in breast meat or thigh meat, increased the L* value of breast meat, and decreased the a* value of thigh meat. In comparison with non-Lyc feeding birds, Lyc supplement elevated the ADG during d 1 to 56, increased the pH of breast meat, decrease the L* and b* values of thigh meat, simultaneously increase the a* value of thigh meat. The L* of breast meat and pH of thigh meat exhibited significant differences under Hs-Lyc treatment. Lyc-treated birds exhibited higher elasticity, gumminess, and resilience in breast meat than those in non-Lyc feeding birds. The cecal metagenome analysis indicated that Hs-Lyc treatment increased the abundance of Phocaeicola salanitronis and Prevotella sp.CAG:1058, Bacteroides sp.An269, and Bacteroides sp.An19 at the species level compared with other treatments. The hepatic untargeted metabolome analysis showed that administration of Lyc upregulated 20 metabolites and downregulated 60 metabolites compared to the Con birds. Futhermore, the Hs-Lyc treatment upregulated 34 metabolites and downregulated 45 metabolites compared to the Hs birds. The correlation between the metagenome and metabolome showed that Lyc supplementation induced significant alterations in the citrate cycle, metabolism of butanoate, glycolysis/gluconeogenesis, glyoxylate and dicarboxylate, alanine, aspartate, and glutamate compared with standard supplement. In contrast, Hs-Lyc treatment induced alterations in the citrate cycle, metabolism of pyruvate, glyoxylate, and dicarboxylate, glycolysis/gluconeogenesis, arginine, proline, alanine, aspartate, and glutamate compared with the standard supplement of heat-challenged broilers. In summary, dietary Lyc supplementation promoted the growth performance, changed the meat quality, modulated the cecal metagenome and hepatic metabolome in heat-stressed broilers.


文件下載    
服務(wù)熱線

021-54397372

15618141270

15300622190

添加微信

返回頂部





国产精品无码电影在线观看| 网禁拗女稀缺资源在线观看| 清河县| 一本色道久久综合狠狠躁篇怎么玩| 欧美日韩在线不卡| 八点影院| 97久久婷婷五月综合色D啪蜜芽| 亚洲精品少妇30P| 亚洲国产欧美在线看片一国产| 国产精品乱码一区二区三| 亚洲色大成网站www永久男同| 97视频| 爱情网站| 特大黑人娇小亚洲女mp4| 欧美成人精品一区二区三区| 男人j放进女人p全黄| 少妇人妻无码精品视频| 欧美精品国产综合久久| 丰满年轻岳欲乱中文字幕| 国产真实夫妇交换视频| 亚洲成av人片无码不卡播放器| 青青青国产精品一区二区| 91精品久久日日躁夜夜躁欧美| 要久久爱| 水蜜桃精品一区二区三区| 亚洲精品无码久久久久苍井空| 亚洲成AV人在线观看天堂无码| 免费a级毛片无码a∨蜜芽试看| 国产美女精品自在线拍免费| 榆社县| 国产香蕉尹人在线观看视频| 午夜福利视频一区二区手机免费看| freesex顶级少妇hd性欧| 伊人激情| 久久精品人妻| 大伊香蕉在线精品视频75| 久久久无码中文字幕久| 人妻少妇中文字幕| 芜湖市| 97超碰人人模人人爽人人爱| 全性|