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| Comparison of Pork Quality Between Two Hybrid Combinations |
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| DOI：10.16768/j.issn.1004-874X.2020.05.011 |
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| Abstract: |
| 【Objective】Two-way crossbred pigs（DZ）of Duroc boars and Tibetan sowsand three-way crossbred pigs（ZDE）of Du' er sows（offspring of Duroc boars and small-ear spotted sows）and Tibetan boarswere used to compare the difference of meat quality.【Method】At the age of 10 months, after fasting for 12 hours, 8 heads（4 males and 4 females）were selected for slaughtering and sampling, and the carcass quality and meat quality traits as well as intramuscular fat, inosinic acid, fatty acid and amino acid contents were measured.【Result】The results showed that:（1）there was no significant difference in carcass quality between DZ and ZDE.（2）Compared with ZDE, the pH45min value of muscle in DZ increased by 4.19%（P ＜ 0.05）, while the L *24h value and shear force decreased by 6.26% and 17.61%, respectively（P ＜ 0.05）.（3）Compared with ZDE, the contents of intramuscular fat and inosinic acid in muscle of DZ increased by 121.59% and 40.88%, respectively（P ＜ 0.05）.（4）Compared with ZDE, linolenic acid and eicosadienoic acid in muscle of DZ decreased by 21.05% and 33.33%, respectively（P ＜ 0.05）, while eicosenoic acid increased by 33.71%（P ＜ 0.05）.（5）Compared with ZDE, the contents of methionine, threonine, glutamic acid, serine and tyrosine in muscle of DZ increased by 58.71%, 45.94%, 176.94%, 36.87% and 48.02%, respectively（P ＜ 0.05）, and the contents of total amino acids, total essential amino acids and total non-essential amino acids in muscle of DZ increased by 22.65%, 16.78% and 24.51%, respectively（P ＜ 0.05）.【Conclusion】It can be concluded that the crossbred pigs of Duroc boars and Tibetan sows have better meat quality and nutritional value. |
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