世界着名肉牛品种

1、世界著名 肉牛和奶牛品种,比利时公牛,桑国俊2003年3月20日摄,德国黄牛公牛,桑国俊2004年5月27日摄,利木辛牛,红安格斯公牛,桑国俊2003年3月20日摄,夏洛来公牛,西门塔尔,荷斯坦,荷斯坦,说明,韩总: 今将照片寄来，如出照片时请给我也代作一份。 甘肃省畜牧兽医研究所 桑国俊 2004.11.22,Hereford bull,CO2 is an 11 year-old line-bred bull with stable genetics. He successfully bred 70 cows in 2002. As you can see from the photo ta

2、ken at 8 years, he is still virile and masculine. Bull CO2 is very strong and masculine in the neck and shoulders. He sires sons and daughters that have great longevity. They mature early, thrive on grass, and finish on grass by the second growing season. CO2 will not give you calving problems. CO2

3、will build a herd of cows that will work on grass and you will be proud to show them off to your neighbors. CO2 daughters have beautiful udders and small nipples. CO2 has proved himself to produce progeny with meat low in connective tissue and very tender (below 3.6 on the Warner Bratsel scale,Heref

4、ord bull,Devon,Bull 667（devon） is 8 years old and comes from lineage that has been grass-based for more than 70 years. His lineage goes back to the great Potheridge Masterpiece, who produced Dean Piece, who produced the excellent Bull 425; 425 produced the 677 bull that has so many great animals in

5、the Rotokawa herd. No grain of any kind has ever been used in this herd or with this bull. Bull 677 has a little extra length of back but is still well balanced with heavy shoulders and large rump and loin area. This bull is an excellent choice for using on your Devon herd. 667 does an excellent job

6、 when used on commercial cows. There has never been a calf assisted at birth from 667. 667 has many offspring (male and female) in the Rotokawa herd. The daughters of 667 cross very well with 688 that would allow building a herd of commercial cows. Calves from 667 will finish on grass in 15 to 18 mo

7、nths,Devon,Red devon bull,Devon,Bull 688(devon) is a 7-year-old bull from genetic male and female lines that have been grass-based for the past 70 years. No grain of any kind has ever been used either in this herd or for this bull. This is grass-based genetics! Bull 688 was produced from the female

8、genetics of the Rotokawa herd and has many offspring (both male and female) in the Rotokawa herd. 688 has also produced a large number of sons that are at work in many herds. The Rotokawa herd averages 3.8 to 4 pounds gain a day on grass from weaning to finish. The calves from 688 will easily finish

9、 in 15 to 18 months. His daughters work well with and are distant relatives with the 667 Rotokawa Devon bull. There has never been a calf assisted at birth from 688. One of the best balanced bulls that we have had the opportunity to evaluate linearly, bull 688 has a very masculine set of shoulders w

10、ith a large loin and rump, with all areas full and blended. 688 Devon bull is the one to create your herd with, purebred or commercial,Devon,Murrary grey bull,British white- Comander,British white,Progress is a three-year-old British White. He was developed on grass and is from a cow line that has p

11、roduced several outstanding bulls and females. His mature weight is 1800 pounds. The British White breed is a very old breed yet it remains unadulterated (has not been out-crossed). The breed performs very well on grass and is adaptable to any environment, hot or cold. British Whites are among the b

12、est in terms of taste and tenderness. Progress has his second full calf crop on the ground. The Progress calves are early maturing. They will be finished on grass at the end of the second grazing season. The calves from Progress are full of meat and deep in the chest and shoulders. The breed average

13、 in the feedlot system is 87% choice and yield grade 1.5-2. His genetics are superior and will produce progeny that will meet standards for our high-quality meat program,Brithish white,Hereford bull,Mandrus angus,Bulldog,PHILOSOPHY OF LINEAR MEASURING AND CORRELATIONS MALE & FEMALE Linear measuring

14、is designed to help the producer choose the body type or form (phenotype) of bull and cow that will be high in reproduction, meat production and low in maintenance. Measuring of the many different body parts allows the operator to recognize structural and functional defects, which are genetic defect

15、, and potential problems that arise from improper form and type from breeding practices. Linear measuring teaches the operator about body form and function. Linear measuring is not about a gene pool concentration. That comes later. Linear measuring is about selecting animals for proper type or form

16、(phenotype). Therefore desired function can be achieved. Choosing the proper body type or form (phenotype) and mating those cows and bulls with each other (kin folk) will build a concentrated gene pool that is consistent, predictable and works best on grass, steers and heifers will finish in 16 to 1

17、8 months on grass. Linear measuring allows the operator to choose the body type or form (phenotype) that the environment around the animals calls for (weather, forage, management, etc.). Linear measuring works as well for the dairy operator. The cows and bulls he builds from linear measuring will pe

18、rform best on grass, be high in reproduction and low in maintenance. Building herds of cows and bulls with the proper form and type sets the stage for healthy, calving ease cows with longevity as is outlined in the instructions. Mastering the instruction manuals teaches you about the many body styles and the effects the