Dairy Sheep Symposium - the Department of Animal Sciences ...
Dairy Sheep Symposium - the Department of Animal Sciences ... Dairy Sheep Symposium - the Department of Animal Sciences ...
Second best Ewe Lambs Best ewe lambs Surplus ewe lambs for sale Ram Pool proven and young rams Elite ewes Base flock naturally bred by 2 nd best rams or rams of producer’s choice Surplus ram lambs for sale Best ram lambs in progeny testing Figure 2: Structure and movement of animals in one member flock
The structure and movement of animals for the whole breeding group is shown in Figure 3. The best EPD rams are shared by all members of the group. Young rams are progeny tested in all member flocks. Artificial insemination (fresh or frozen) is used. Flock B Flock B Young rams Flock C Flock C Young rams Youn g Flock A Flock A Flock D Flock D Youn g Best rams Figure 3. Design of a group breeding scheme. Young rams Flock F Flock F Ram Pool Flock E Flock E Advantages of a Group Breeding Scheme - A Group Breeding Scheme can be easily started by a group of producers already involved in a small cooperative (milk marketing) or any other association. - The maximum genetic gain is realized in the “elite” group. The genetic gain is rapidly passed to the base population and all member flocks improve at the same rate. - Manageable population size (a few hundred to a few thousand) if the group stays at a reasonable size. - Only a small percentage of ewes need to be recorded with great accuracy, reducing expenses, time and labor. - Financial rewards for the members through the sale of surplus breeding animals based on accurate genetic value.
- Page 142 and 143: dimanche soir sur les brebis de rac
- Page 144 and 145: A B A Morning milk yield, kg B Adj.
- Page 146 and 147: Background and History: Most sheep
- Page 148 and 149: Percent 100 80 60 40 20 0 87 Effect
- Page 150 and 151: Fall Lambing Percentage 100 90 80 7
- Page 152 and 153: THE EFFECT OF GROWTH RATE ON MAMMAR
- Page 154 and 155: After puberty, the mammary gland re
- Page 156 and 157: Many trials have examined the mamma
- Page 158 and 159: From these results the authors conc
- Page 160 and 161: Onset of Puberty and Reproductive P
- Page 162 and 163: Similarly, calves, heifers, and cow
- Page 164 and 165: McCann, M. A., Goode, L., Harvey, R
- Page 166 and 167: DISCUSSION Stability of Frozen Raw
- Page 168 and 169: analyzed for titratable acidity, sy
- Page 170: 411-416. Wendorff, W.L. 1998. Updat
- Page 175 and 176: Recent Outbreaks involving Cheddar
- Page 177 and 178: testing on raw milk at the farm. Th
- Page 179 and 180: THE AUSTRALIAN SHEEP DAIRY INDUSTRY
- Page 181 and 182: The University of Western Australia
- Page 183 and 184: Heterosis did not seem to intervene
- Page 185 and 186: Lambs The problem of weaning lambs
- Page 187 and 188: GROUP BREEDING SCHEME: A FEASIBLE S
- Page 189 and 190: Where: h = square root of heritabil
- Page 191: Second step. All members enroll in
- Page 195 and 196: CAN THE OVARY INFLUENCE MILK PRODUC
- Page 197 and 198: dividing the amount of milk obtaine
- Page 199 and 200: the CL there were significant diffe
- Page 201 and 202: etween milkings. Finally, this woul
- Page 203 and 204: Table 1. Least squares means ± SEM
- Page 205 and 206: A Daily milk yield (kg) A B Milk fl
- Page 207 and 208: Progesterone (ng/ml) 8 6 4 2 0 CLY:
- Page 209 and 210: milk volume within the cistern (Mar
- Page 211 and 212: Results Treatment milk yield increa
- Page 213 and 214: Reports in dairy cattle concerning
- Page 215 and 216: Muir, D.D., D.S. Horne, A.J.R. Law,
- Page 217 and 218: Milk yield (kg) 1.4 1.2 1.0 0.8 0.6
- Page 219 and 220: A Milk protein (%) A A Milk protein
- Page 221 and 222: TAPPE FARM TOUR Jon & Kris Tappe, T
- Page 223: a little special attention every da
Second<br />
best<br />
Ewe<br />
Lambs<br />
Best ewe lambs<br />
Surplus ewe<br />
lambs for sale<br />
Ram Pool<br />
proven and<br />
young rams<br />
Elite ewes<br />
Base flock naturally bred by<br />
2 nd best rams or rams <strong>of</strong><br />
producer’s choice<br />
Surplus ram<br />
lambs for sale<br />
Best ram<br />
lambs in<br />
progeny<br />
testing<br />
Figure 2: Structure and movement <strong>of</strong> animals in one member flock
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