68日齡斷奶重為54公斤。120日齡體重為92公斤，斷奶后在60天內(nèi)的生長速度為730克/天
（比牛長的還快啊，這些數(shù)據(jù)是哪來的）作者: animalchem 時間: 2010-6-17 11:42 http://www.wisconsinagconnection.com/story-national.php?Id=2016&yr=2008
Michigan State Claims World's Fastest Growing Sheep
USAgNet - 08/27/2008
The Sheep Research and Teaching Facility at Michigan State University (MSU) reports what it believes to be the "World's Fastest Growing Sheep."
MSU 8130, a Suffolk ram, was born on Feb. 8, 2008, as a 20-pound single. He was weaned on April 16, at an age of 68 days, and weighed 120 pounds. At 120 days of age, MSU 8130 tipped the scales at 203 pounds with a post weaning 60-day growth rate of 1.6 pounds per day.
MSU 8130 was part of a research study at MSU evaluating growth rate and feed efficiency in Suffolk ram lambs. Rams are fed for 42 days post weaning using feed intake recording equipment. MSU 8130 had a feed conversion rate of 3.87 pounds of feed per pound of gain. At 96 days of age, weighing 163 pounds, MSU 8130 was scanned using ultrasound and was found to have a 12th rib fat measurement of 0.21 inches and a loin eye area of 3.71 square inches.
Another ram, MSU 8139, born as a 16-pound twin on Feb. 11, was weaned at 93 pounds at 65 days of age. At 120 days of age, MSU 8139 weighed 199 pounds with a post weaning 60-day growth rate of 1.91 pounds per day. MSU 8139 had a feed conversion rate of 3.39 pounds of feed per pound of gain. At 114 days of age, weighing 184 pounds, MSU 8139 was scanned using ultrasound and was found to have a 12th rib fat measurement of 0.21 inches and a loin eye area of 3.53 square inches.
Both rams were sired by Culham ? Stevens 5BR155, the National Sheep Improvement Program Suffolk trait leading sire for both weaning weight and post-weaning gain.作者: iverson 時間: 2010-6-19 21:54
生長快的肉質(zhì)應(yīng)該不會好吧作者: lasre007 時間: 2010-10-21 21:06
學(xué)習(xí)學(xué)習(xí)。。。[img][/img]作者: jlxp521 時間: 2010-11-23 08:01
學(xué)習(xí) 學(xué)習(xí)作者: jeep010 時間: 2010-12-17 01:14 感覺很不錯啊作者: feedboy 時間: 2010-12-22 12:17
改公斤為市斤，這個數(shù)據(jù)還是比較可能的作者: animalchem 時間: 2010-12-22 15:47
看來質(zhì)疑本文數(shù)據(jù)的網(wǎng)友不少，尤其對于綿羊羔的初生重。其實看待生物界的各種現(xiàn)象，不要用常態(tài)的眼光，更不要以自己看到過的為標(biāo)準(zhǔn)。本文中的數(shù)據(jù)是真實的。據(jù)國外文獻報導(dǎo)，綿羊羔的初生重變化范圍為3.5 到20 磅（1.59-9.08公斤），其實所指的最大值個體就是本文中的最大初生重羔羊。如果大家還不相信這個數(shù)據(jù)。我可引用美國農(nóng)業(yè)部農(nóng)業(yè)研究網(wǎng)頁上的資料，地址為：http://www.ars.usda.gov/research/publications/publications.htm?seq_no_115=235943。文章的題目是：“Does breed of ram affect ewe and lamb productivity? ”發(fā)表于2009年。只引用其中的一段話：“ Lambs with birth weights that were 0.45, 0.91, or 1.36 kg (i.e., 1, 2, or 3 lb) less than the flock average of 5.2 kg (i.e., 11.5 lb) had 2.5-, 7-, and 25-fold greater risks of dying. observed mean of 5.2 kg to the maximum observed value of approximately 8.2 kg (i.e., 18 lb) had essentially no effect on lamb survival. ”可見研究中的最大個體初生重為8.2 kg 。我們在國內(nèi)看到的綿羊羔初生重一般為3-4公斤，因而看到本文的數(shù)據(jù)會大吃一驚，這也是正常的。
感覺很不錯啊