REDUCING FEED COSTS: THE CHALLENGE IN PERSPECTIVE

1984 ◽  
Vol 64 (3) ◽  
pp. 501-503
Author(s):  
J. W. G. NICHOLSON

The theme for the 1983 AIC conference was "Food at What Cost." In keeping with this theme the Canadian Society of Animal Science Program Committee chose the topic "Reducing Feed Costs" for a symposium. The program was organized by a committee chaired by Dr. D. C. Crober, Nova Scotia Agricultural College, Truro. It was my pleasant duty to act as chairman for the proceedings and to make the introductory and closing remarks which follow. Key words: Feed costs, opportunity feeds

2008 ◽  
Vol 88 (6) ◽  
pp. 1093-1094
Author(s):  
Y. A. Papadopoulos ◽  
K. B. McRae ◽  
D. Gehl ◽  
S. A. E. Fillmore

Bruce birdsfoot trefoil (Lotus corniculatus L.) is a 71-clone synthetic variety developed at the Nappan Research Farm, Agriculture and Agri-Food Canada, Nappan, Nova Scotia. Bruce was developed through two cycles of mass selection for plant vigour (top and root growth) and winterhardiness, and one cycle of mass selection for re-growth vigour under grazing. In Atlantic Canada, Bruce produced more forage than the check cultivar Leo during 3 post-seeding years. It was also superior in spring growth with high first-cut herbage yields. Key words: Birdsfoot trefoil, Lotus corniculatus, cultivar description


1982 ◽  
Vol 62 (4) ◽  
pp. 1135-1142 ◽  
Author(s):  
D. P. HEANEY ◽  
J. N. B. SHRESTHA ◽  
H. F. PETERS

Two experiments were conducted to evaluate the relative performance of artificially reared lambs fed four types of liquid diets: (1) lamb milk replacer (LMR) with 24% protein from spray-dried milk products and 24% fat in the dry powder; (2) high quality calf milk replacer (CMR) with 20% protein from spray-dried milk products and 20% fat; (3) fresh cow milk (CM); or (4) equal proportions of LMR and CM (LMR:CM). Average daily gains of lambs fed CMR or CM were lower by 16% and 12%, respectively, and weaning weights were lower by 10% and 5%, respectively, than those of lambs fed LMR. Gains and weaning weights of lambs fed LMR:CM were identical to those fed LMR. Lamb survival was marginally lower among CMR- and CM-fed lambs compared with those fed LMR. There were no observable differences among any of the feeding regimens in the general appearance, thriftiness or well-being of the lambs. The results indicate that, with good management, satisfactory lamb performance under artificial rearing can be achieved with high quality CMR or CM and that under practical conditions lower feed costs could offset the marginal reduction in lamb performance. Key words: Lambs, artificial rearing


2018 ◽  
Vol 96 (suppl_1) ◽  
pp. 73-74
Author(s):  
J G Powell ◽  
E B Kegley ◽  
K S Jogan ◽  
L R Thomas

1997 ◽  
Vol 75 (7) ◽  
pp. 1133-1136 ◽  
Author(s):  
Kwang Young Kim ◽  
Stephen J. O'Leary ◽  
David J. Garbary

Reciprocal crosses between male and female gametes of Ascophyllum nodosum (L.) LeJolis and Fucus vesiculosus L. were made from plants collected at Tor Bay, Nova Scotia. Crosses within each species were viable and resulted in normal zygote development. Hybrids occurred in low frequency in the cultures (ca. 1–5%) and developed either an initial rhizoid or underwent one or two internal divisions. Hybrid zygotes did not develop further. More developing embryos were observed in crosses when F. vesiculosus provided the eggs, and these zygotes developed longer rhizoids. Maximum development was to three or four cells, which occurred in ca. 10 days. By 5 weeks, all zygotes had disintegrated. Nuclear diameter was the same in both species (6 μm) although almost twice as much nuclear DNA was present in A. nodosum than in F. vesiculosus. Nuclei in hybrids were larger than in the parental species. Key words: Ascophyllum nodosum, Fucus vesiculosus, Fucales, hybridization, Phaeophyta.


2007 ◽  
Vol 87 (4) ◽  
pp. 527-534 ◽  
Author(s):  
V. O. Nams ◽  
R. C. Martin

The effects of multiple turnout dates on cattle weight gain were assessed in Nova Scotia in 1999 and 2000. Steers and heifers were released into pasture every 1 to 3 d from May 06 to May 28 in 1999 and from Apr. 26 to Jun. 05 in 2000. Cattle turned out to pasture later in the season gained less weight. Turnout date had a similar effect in both years, and 1 d of earlier turnout increased weight by 0.789 kg per animal over the summer. The time for cattle weight to recover after entering the pasture did not vary with turnout date, but it did differ significantly between years, with cattle recovering weight faster in 2000 than in 1999. Rate of weight gain decreased throughout the summer. The results suggest a mechanism for the turnout date effect: that cattle grow fastest on the pasture at the start of the season, and they grow faster on the pasture than in the barn. Thus, the earlier that they are introduced into the pasture, the more time they spend in the pasture during peak weight gain time. Rotational grazing maximizes the effect of turnout date by minimizing potential pasture degradation caused by early turnout. Key words: Pasture, cattle, rotational grazing, recovery period, turnout date, weight gain


1989 ◽  
Vol 69 (4) ◽  
pp. 879-883
Author(s):  
G. K. RUTHERFORD ◽  
LORETTA LI ◽  
G. J. ROSS

In Kings County Nova Scotia, soils have developed over pre-Wisconsinan basaltic saprolite and basaltic and granitic till. The clay fraction of the soil developed on the saprolite is predominantly a trioctahedral smectite and apparently has not been significantly changed by post-Wisconsinan weathering. The clay fraction of the Aej horizon of the soil developed on granitic till is dominantly composed of dioctahedral layer silicates, mainly mica with some montmorillonite and vermiculite, and that developed on basaltic till by smectite and vermiculite. Key words: Basaltic saprolite, trioctahedral smectite, post-Wisconsinan weathering


Sign in / Sign up

Export Citation Format

Share Document