Growth rate and feed intake were measured for 77 d during the postweaning growth period. Author information: (1)USDA, ARS, U.S. Meat Animal Research Center, Clay Center, NE. Numbers of lambs weaned per ewe exposed or per ewe lambing are shown in Figure 1. Improving Economically Important Traits. Mean performance by test station and year are presented. Louis XVI purchased 7 wethers, 41 rams and 318 ewes from his cousin King Charles III of Spain. The Polypay is a relatively recent entry on the list of breeds in the United States. The Rambouillet sheep is a breed of domestic sheep from France.

Rambouillet and Romanov reciprocal breed effects on survival and growth traits of F1 lambs and on reproductive traits of F1 ewes. The average number of lambs born per ewe lambing was 2.02. Rambouillet breeders in the US have used central performance testing as a tool for genetic improvement for several decades. Dorset x Rambouillet ewes were superior for lamb birth weight, weaning weight, hot carcass weight and ribeye area. Abstract. Producers want lambs to reach market weight as early as possible to save on feed costs. Consumer preference for heavier lambs with less body fat has created considerable change within the sheep industry to increase size and weight. Development began in 1968 with initial crosses of Targhee x Dorset and Rambouillet x Finnsheep.

Ewe 125-160 lb. Simple Summary. Growth and carcass traits are economically important to sheep producers. Mean ADG was 340 ± 9.2 g for Dorper lambs, and 346 ± 8.6 g for Rambouillet lambs. Rambouillet x M 72.1 ac 3.77 bce 14.0 de 17.1 ad 132 a SA Meat Merino x M 64.6 bc 3.59 ade 14.1 de 18.1 bcd 155 b Least squares means with letters in common are not significantly different (P>0.05). It is also known as the French Merino and the Rambouillet Merino. The fertility of adult Rambouillet ewes in this project averaged 95%. Objectives were to estimate reciprocal effects of Romanov and Rambouillet breeds on survival, growth, and reproductive traits of F1 progeny and direct breed effects (Suffolk and Composite – ½ Columbia, ¼ Hampshire, and ¼ Suffolk) on survival and growth traits of the subsequent terminally sired lambs. The Awassi sheep breed is very resilient in the Mediterranean region but shows poor meat quality. Rambouillet Mature Body Weight Ram 200-300 1b Ewe 140-180 lb. The lambs grow rapidly under good feeding conditions to produce satisfactory market weights at from six to nine months of age. Rambouillet ewes are crossbred extensively with medium-wool and long-coarse-wool rams to produce choice market lambs and rugged breeding ewes with heavy, attractive medium wool. The Rambouillet sheep is quite a magnificent sheep to look at with their powerful full body, well-muscled build and their beautiful shaped horns. The disease is recorded in Devon cattle, 1 South Hampshire sheep, 2,3,4 Rambouillet sheep, Borderdale sheep, 5 Merino sheep, Nubian goats, and Vietnamese pot-bellied pigs. Updated: Nov 11, 2019.

Abstract.

The ewes horns curve back gracefully from her head giving her a clean neat appearance, but the rams horns are spiraled and magnificent. In the year of 1786, development of this breed started when Louis XVI purchased over 300 Spanish Merinos. The estimates of heritability for the present study in Rambouillet sheep varied from low to medium and were 0.064±0.095, 0.124±0.144, 0.327±0.279, 0.333±0.283, 0.376±0.309 and 0.124±0.117 for BWT, WWT, 6-BW, 12-BW, MBW and AWP, respectively (Table 3). Growth Rate M- Wool Type Fine Blood System Fine Data from Dorper and Rambouillet ram lambs (n = 79) were used to estimate breed means for postweaning growth rate, feed intake, feed conversion effic All of the following was quoted from “In Sheep's Clothing" Polypay . Growth rate. Freking BA(1), Bennett GL(1). Growth Rate H- Wool Type Fine Blood System ½-Fine Spinning Count Average Fiber Diameter Micron 24-19 Grease Fleece Weight Ewe 10-15 1b Yield 45-55% Staple Length 2½-4" Debouillet Mature Body Weight Ram 220-275 lb. A progeny test was conducted to determine the extent to which differences in central test performance are realized in progeny. Introduction .

The highest estimate of heritability was obtained for MBW in Rambouillet sheep. The three major test stations are in Texas, Wyoming, and North Dakota.

Fleeces of Rambouillet sheep are relatively heavy.

Key Words: Sheep, Crossbred Ewes, Growth, Carcass . In Veterinary Medicine (Eleventh Edition), 2017.