草业学报
草業學報
초업학보
PRATACULTURAL SCIENCE
2015年
6期
133-141
,共9页
霍永久%占今舜%余同水%朱建平%赵国琦
霍永久%佔今舜%餘同水%硃建平%趙國琦
곽영구%점금순%여동수%주건평%조국기
蛋白质%生产性能%肉品质%血清生化指标
蛋白質%生產性能%肉品質%血清生化指標
단백질%생산성능%육품질%혈청생화지표
protein%production performance%serum parameters%meat quality
本试验旨在研究饲粮粗蛋白水平对淮猪育肥后期生产性能、肉品质和血清生化指标的影响。试验选取48头体重相近的淮猪,公母各半,随机分为3组,即低蛋白组(11.96%)、中蛋白组(13.04%)和高蛋白组(14.16%),每组4个重复,每个重复4头猪,试验期为138 d。结果表明,1)各组猪末重、平均日采食量和平均日增重差异不显著(P >0.05),但高蛋白组的料重比显著升高(P <0.05);各组猪屠宰性能无显著影响。2)各组的肌肉 pH、肉色评分、失水率以及干物质、粗蛋白、粗灰分和肌苷酸的含量差异不显著(P >0.05),但高蛋白会显著提高肌肉粗脂肪和胆固醇的含量(P <0.05);3)高蛋白组猪肌肉中的亚麻酸含量显著高于低蛋白组(P <0.05),而花生四烯酸含量显著低于其他两组(P <0.05),其他各组之间脂肪酸含量差异不显著。4)低蛋白组的血清中 ALB 含量显著高于中蛋白组(P <0.05),随着蛋白水平提高,血清中的 BUN 含量有升高的趋势(P =0.085)。根据本试验结果,饲粮粗蛋白水平为13.04%对淮猪育肥后期生长性能、肉品质和血清生化指标的影响效果最佳。
本試驗旨在研究飼糧粗蛋白水平對淮豬育肥後期生產性能、肉品質和血清生化指標的影響。試驗選取48頭體重相近的淮豬,公母各半,隨機分為3組,即低蛋白組(11.96%)、中蛋白組(13.04%)和高蛋白組(14.16%),每組4箇重複,每箇重複4頭豬,試驗期為138 d。結果錶明,1)各組豬末重、平均日採食量和平均日增重差異不顯著(P >0.05),但高蛋白組的料重比顯著升高(P <0.05);各組豬屠宰性能無顯著影響。2)各組的肌肉 pH、肉色評分、失水率以及榦物質、粗蛋白、粗灰分和肌苷痠的含量差異不顯著(P >0.05),但高蛋白會顯著提高肌肉粗脂肪和膽固醇的含量(P <0.05);3)高蛋白組豬肌肉中的亞痳痠含量顯著高于低蛋白組(P <0.05),而花生四烯痠含量顯著低于其他兩組(P <0.05),其他各組之間脂肪痠含量差異不顯著。4)低蛋白組的血清中 ALB 含量顯著高于中蛋白組(P <0.05),隨著蛋白水平提高,血清中的 BUN 含量有升高的趨勢(P =0.085)。根據本試驗結果,飼糧粗蛋白水平為13.04%對淮豬育肥後期生長性能、肉品質和血清生化指標的影響效果最佳。
본시험지재연구사량조단백수평대회저육비후기생산성능、육품질화혈청생화지표적영향。시험선취48두체중상근적회저,공모각반,수궤분위3조,즉저단백조(11.96%)、중단백조(13.04%)화고단백조(14.16%),매조4개중복,매개중복4두저,시험기위138 d。결과표명,1)각조저말중、평균일채식량화평균일증중차이불현저(P >0.05),단고단백조적료중비현저승고(P <0.05);각조저도재성능무현저영향。2)각조적기육 pH、육색평분、실수솔이급간물질、조단백、조회분화기감산적함량차이불현저(P >0.05),단고단백회현저제고기육조지방화담고순적함량(P <0.05);3)고단백조저기육중적아마산함량현저고우저단백조(P <0.05),이화생사희산함량현저저우기타량조(P <0.05),기타각조지간지방산함량차이불현저。4)저단백조적혈청중 ALB 함량현저고우중단백조(P <0.05),수착단백수평제고,혈청중적 BUN 함량유승고적추세(P =0.085)。근거본시험결과,사량조단백수평위13.04%대회저육비후기생장성능、육품질화혈청생화지표적영향효과최가。
The aim of this experiment was to study the effect of dietary crude protein level on growth perform-ance,meat quality and serum parameters of Huai pigs.Forty-eight Huai pigs (half males and half females) with similar body weight were randomly divided into 3 groups,and fed with low (11.96%),medium (13.04%)or high protein (14.16%)diets.Each treatment group had 4 replicates with 4 pigs in each replicate. The trial lasted for 138 days.The key results were:1 )No significant difference was seen among the three groups in final body weight,average daily feed intake,average daily gain and slaughter traits.However,the ratio of feed to gain in the high protein group was significantly higher than for the remaining two groups (P <0.05);2)The pH value,color score,driage,DM,crude protein,and ash in muscle and intra-muscular pres-sure showed no significant difference among the three groups,whereas the content of crude fat and cholesterol in muscle were significantly increased in the high protein group (P <0.05);3)There was no significant differ-ence between the three groups in fatty acid,linolenic acid or arachidonic acid levels.The content of linolenicacid in the muscle of the high protein group was significantly higher than that in the low protein group (P <0.05),while arachidonic acid content of muscle was significantly lower in the high protein group than in the re-maining groups (P <0.05);4)The serum albumin levels of animals in the low protein group were significantly higher than those of medium protein group,and blood urea nitrogen in serum tended to increase with increased protein level in the diet (P <0.1).In conclusion,the medium protein diet with 13.04% crude protein was opti-mal for growth performance,meat quality and serum parameters during the final stage of pig fattening.