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C2. Most important meat production traits of pig (fattening ability, carcass merit) ​ Significance of pig breeding: Advantages: High genetic diversity High reproductive capacity Effective pork production Good adaptability: fat ratio was decreased by more than 70% within 20 years Investment with fast return of costs Continuous source of income​ Fattening on pigs increase with age(days) and weight..

※ 본 내용은 개인적으로 공부하면서 요약한 내용입니다. 내용에 오류가 있을 수 있음을 알려드립니다. B.14 Blood vessels of fore limb distal to the elbow joint a. mediana - a. profunda brachii : runs caudal to antebrachii - a. interossea communis - a. ulnaris(only Ca) - a. recurrens ulnaris : anastomose with a. collateral ulnaris - a. interossea cranialis : pierce the spatium interossea - a. recurrens interossea : runs proximally to the art..

※ 본 내용은 개인적으로 공부하면서 요약한 내용입니다. 내용에 오류가 있을 수 있음을 알려드립니다. B.13 Blood vessels of forelimb down to elbow joint a. axillaris : continuation of a. subclavia beyond the orgin of a. cervicalis superficialis - a. thoracica externa : supplies pectoral muscle - a. thoracica lateralis : runs caudally to ventral thoracic wall(only Ca, Su) - a. subscapularis : runs along caudal border of scapula - a. circumfl..

※ 본 내용은 개인적으로 공부하면서 요약한 내용입니다. 내용에 오류가 있을 수 있음을 알려드립니다. B15. blood vessels of the hind limb down to the stifle joint a. iliaca externa - a.circumflexa ilium profunda(Su, Ru, Eq) : from a. iliaca externa - a. cremaseterica(Eq) : runs to m. cremaseter - a. uterina(Eq) : runs to corpus and cornu uteri - a. profunda femoris - a. circumflexa femoris medialis : continuation of profunda femoris to Os f..

B3 Breeding methods in cattle production: purebred breeding, crossbreeding Breeding Systems Natural: Harem (group of 1-2 males and number of females with their offspring), stud (such as a stud farm) or hand (Hand breeding – where the time & mating individuals are selected by the breeder) Beef production Sex ratio = 40-50 (60-79) ​AI- artificial insemination: Predominantly used in dairy industry ..

B1. Domestication of cattle, micro-evolutionary consequences, related species, inter-species hybrids Taxonomy of cattle & its relatives: Kingdom: animals (Animalia) Phylum: vertebrates (chordata) Class: mammals (mammalia) sub class: placentalia Order: hoofed animals (ungulates) Sub-order: even toed (Artiodactyla) Section: ruminants Family: cattle like (bovidae) Number of chromosomes vary btw 50-..