China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (8): 2518-2527.doi: 10.16431/j.cnki.1671-7236.2020.08.020

• Genetics and Breeding • Previous Articles     Next Articles

Study on Growth and Development,Slaughter Performance and Meat Quality Characteristics of Crossbreed Goat from Boer and Henan Huai Goat Under the Condition of House Feeding

ZHANG Zhiheng1, WANG Yuqin1,2, REN Guoyan1, LI Yuanxiao1,2, ZHAO Lingping1, WU Qiujue1, ZHANG Zijun3   

  1. 1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China;
    2. Engineering Research Center for Mutton Sheep Breeding of Henan Province, Luoyang 471003, China;
    3. Anhui Agricultural University, Hefei 230000, China
  • Received:2019-12-13 Online:2020-08-20 Published:2020-08-15

Abstract: In order to study the growth and muscle quality of cross breed goat from Boer and Henan Huai goat,the body weight,slaughtering performance,conventional nutrients (water,crude protein,crude fat,crude ash,calcium,phosphorus,magnesium,iron and selenium),17 kinds of amino acids content and different parts (arm triceps,biceps femoris,longissimus dorsi muscle) of the carcass muscles of cross breed goat from Boer and Henan Huai goat were determined by routine growth performance test,national standard method and histochemical staining the fiber tissue characteristics (muscle fiber diameter,muscle fiber density) of meat were measured and analyzed.The results showed that the body weight,body length,body height and tube circumference of Boer and Henan Huai hybrid ram were significantly higher than those of ewe (P<0.05) at the new born stage;The body weight,body length,body height and chest circumference of ram at 1,3 and 6 months were significantly higher than those of ewe (P<0.05);At the age of one year and 1.5 years,the body weight and body size of ram were significantly higher than those of ewe (P<0.05).The carcass weight of 6-month-old Boer and Henan Huai hybrid ram and ewe was 12.94 and 11.33 kg respectively,and the slaughter rate was 49.01% and 48.34%,respectively.There was no significant difference in slaughter performance (P>0.05).The percentage of moisture,crude fat,crude protein and ash in carcass muscle was 71.00%,2.10%,19.17% and 2.31% respectively,the cholesterol content was 62.93 mg/100 g;The content of Mg,Ca,Fe,Se and P were 248.00,40.57,17.00,0.08 and 210.12 mg/kg,respectively.The proportion of Lys,His and Arg in FAO was 123.87%,140.42% and 102.88%,respectively,which were higher than the evaluation standard of FAO/WHO (ideal protein model);The proportion of Thr and Leu in FAO was 86.80% and 82.00%,respectively,which were not significantly different from that of FAO ideal protein model.Phe accounted for 36.90% of FAO index,which was significantly different from the amino acid content of FAO ideal protein model.The muscle fiber diameter of arm triceps was 39.98 μm and higher than that of the biceps femoris muscle (36.53 μm) and longissimus dorsi muscle (27.06 μm).The results showed that the slaughtering performance of Bohuai hybrid goat was better under the condition of house feeding,the content of amino acid,protein,fat and several main minerals in muscle was rich,and the fat in muscle appeared marbling distribution,which provided a reference for the next crossbreeding improvement of local goat breeds and the development of high quality mutton products.

Key words: crossbreed goat from Boar and Henan Huai goat; muscle; nutritional characteristics; histological traits

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