scholarly journals Vegetative growth of Umbrella Leaf Palm, Johannesteijsmannia lanceolata in Angsi Forest Reserve, Malaysia

1970 ◽  
Vol 12 ◽  
pp. 11-20
Author(s):  
M. Z. Rozainah ◽  
U. R. Sinniah
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
Vegetative Growth ◽  
Forest Reserve ◽  
Vegetative Phenology

A study of an acaulescent palm, Johannesteijsmannia  lanceolata J. Dransfield was carried out in Angsi Forest Reserve Negeri Sembilan Malaysia for a period of 19 months A total of 32 adults, 24 juveniles and 32 seedlings from 3 different plots were censused every two weeks. The results showed that the average numbers of new leaves entering the crown with in the study period (19months) were: 3.3, 2.6 and 1.3 for 2.1, 1.6 and 0.8 leaves per year for adult juvenile and seedling, respectively. From the calculation it was discovered that the time spent by each leaf in the crown before it died was 8.8 years for adult and 8.4 years for juvenile. Key words: Johannesteijsmannia; Growth rate; Vegetative phenology; Arecaceae doi: 10.3126/eco.v12i0.3190 Ecoprint: An International Journal of Ecology 12: 11-20, 2005

ASSESSMENT OF COMPLETELY PELLETED DIETS FOR PERFORMANCE TESTING OF RAMS

1986 ◽  
Vol 66 (3) ◽  
pp. 817-820
Author(s):  
J. S. WALTON ◽  
B. W. McBRIDE ◽  
N. A. MARTINEAU ◽  
T. D. BURGESS
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
Performance Test ◽  
Performance Testing ◽  
Ingestive Behavior ◽  
Test Procedures

Completely pelleted diets were fed to rams under a facsimile of Ontario Ram Performance Test procedures. Twenty rams were fed for 50 d on completely pelleted rations without impairment of growth rate and without any effects on rumen health or ingestive behavior. Key words: R.O.P. testing, rams, pelleted feeds, growth rate, rumen lining

Influence of Trichoderma longibrachiatum xylanase supplementation of wheat and corn based diets on growth performance of pigs

1996 ◽  
Vol 76 (2) ◽  
pp. 271-273 ◽  
Author(s):  
T. A. Van Lunen ◽  
H. Schulze
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Key Words ◽  
Block Design ◽  
Trichoderma Longibrachiatum ◽  
Randomized Block Design ◽  
Key Words Pig ◽  
Ad Libitum ◽  
Dietary Treatments

A trial was conducted to evaluate the effects of supplementing wheat- and corn-based diets with xylanase on growth performance and FCR of pigs from 10 to 18 wk of age. Seventy-tow castrated male pigs were assigned to pens of two and in a randomized block design to six dietary treatments consisting of diets containing 60% wheat, 40% wheat and 20% corn, and 20% wheat and 40% corn with and without supplementation with xylanase. Feed and water were available ad libitum. Xylanase supplementation improved growth rate and FCR by 9.2 and 5.3%, respectively, regardless of level of wheat and corn inclusion. Key words: Pig, growth, feed enzyme, Trichoderma longibrachiatum xylanase, wheat, corn

Effect of index selection for reduced backfat thickness and increased growth rate on sow weight changes through two parities in swine

1992 ◽  
Vol 72 (2) ◽  
pp. 403-408 ◽  
Author(s):  
R. M. McKay
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
Selection Pressure ◽  
Backfat Thickness ◽  
Index Selection ◽  
Weight Changes ◽  
Selection For ◽  
The Impact

The impact of continued selection for reduced backfat thickness and improved growth rate on weight changes in Yorkshire and Hampshire sows, from breeding as gilts to weaning their second litter, was studied. Results suggest that some sow weight changes may have been influenced by selection pressure exerted. Key words: Sows, Canadian Yorkshire, Hampshire, liveweight change

Effects of shearing and prebreeding ram exposure on days to first mark and pregnancy rate of ewe lambs

1991 ◽  
Vol 71 (3) ◽  
pp. 905-907
Author(s):  
R. A. Kemp ◽  
S. F. Lane ◽  
Y. M. Berger
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
Pregnancy Rate ◽  
Ewe Lambs ◽  
Age At Puberty

Crossbred ewe lambs were used to examine effects of shearing and prebreeding ram exposure on age at puberty and pregnancy rate. Shearing did not significantly affect age at puberty or growth rate of ewe lambs. Prebreeding ram exposure and/or shearing did not influence pregnancy rate. Key words: Shearing, ram exposure, pregnancy rate, growth

Visceral organ weights of swine selected for reduced backfat thickness and increased growth rate

1993 ◽  
Vol 73 (1) ◽  
pp. 201-206 ◽  
Author(s):  
R. L. Cliplef ◽  
R. M. McKay
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
Backfat Thickness ◽  
Visceral Organ ◽  
Organ Weights ◽  
Liver And Kidney ◽  
Seven Generations

Eight generations of Yorkshire swine and seven generations of Hampshire swine, involving a total of 2300 animals of which 1350 were selected for reduced backfat thickness and increased growth rate, had concurrent increases in visceral organ weights (heart, lungs, spleen, liver and kidney). Implications are that this could amount to 0.4 kg less weight per carcass. Key words: Pigs, organs, selection, Yorkshire, Hampshire

Responses of Percids to Exploitation

1977 ◽  
Vol 34 (10) ◽  
pp. 1983-1988 ◽  
Author(s):  
G. R. Spangler ◽  
N. R. Payne ◽  
J. E. Thorpe ◽  
J. M. Byrne ◽  
H. A. Regier ◽  
...  
Keyword(s):  
Growth Rate ◽  
Early Detection ◽  
Community Ecology ◽  
Key Words ◽  
Fish Community ◽  
Aquatic Community ◽  
Fish Stocks ◽  
Interspecific Relationships ◽  
Genetic Stocks

Conventional exploitation is described as an opportunistic process directed initially toward the largest members of the fish community and preferentially selecting those species for as long as the fishery persists. Some responses of percid communities to exploitation stress are similar to those previously described for marine stocks and salmonid communities. The most conspicuous responses of percids are changes in variability of recruitment, increases in growth rate, and reductions in the ages of first spawning. The least tractable and potentially most malefic responses are changes in genetic stocks and in interspecific relationships within the aquatic community. Three models are proposed for early detection of exploitation stress in fish stocks or communities. Key words: Percidae, exploitation, community ecology

scholarly journals Vegetative growth and yield of robusta coffee genotypes cultivated under different shading levels

2019 ◽  
Vol 35 (5) ◽  
Author(s):  
Luan Peroni Venancio ◽  
José Francisco Teixeira Do Amaral ◽  
Paulo Cezar Cavatte ◽  
Cynthia Teixeira Vargas ◽  
Edvaldo Fialho Dos Reis ◽  
...  
Keyword(s):  
Climate Change ◽  
Growth Rate ◽  
Vegetative Growth ◽  
Coffea Canephora ◽  
Growth And Yield ◽  
Full Sunlight ◽  
Robusta Coffee ◽  
Coffee Plants ◽  
Four Levels ◽  
Impacts Of Climate Change

The growing in shaded systems is one of the strategies adopted to mitigate the impacts of climate change on coffee trees. However, there are few studies about the effect of shading on the growth and production of clones of robusta coffee (Coffea canephora). Besides that, exist a paradigm  in Brazil of that the shading in coffee robusta is synonymous of less yield. Thus, the aim of this work was to evaluate whether C. canephora genotypes subjected to shading increase their yield and growth vegetative under field conditions. The study was performed between September 2013 and July 2017 (four harvests) in Alegre, Espírito Santo state, Brazil. Three genotypes of cultivar Conilon Vitória - Incaper 8142 were evaluated (03V, 06V, and 12V) and four levels of shade: full sunlight (witness) and, low, moderate and, high shade, with 38, 48 and, 68% of real capacity of shade, respectively. The shade was performed using black polyolefin screens; plants growing in full sunlight were only fenced. The tested shade levels affected the growth rate and yield of Robusta coffee plants. The shading caused a greater leaf expansion as compared to the full sunlight, as well as greater etiolation of the plagiotropic and orthotropic branches. The genotype 06V was shown to be responsive to shading, with a statistically equal production independently of shade level. The low, moderate, and high shade levels affected negatively the yield of genotypes 03V and 12V. The shading can improve the yield of Robusta coffee, in this case, of the genotype 06V of the cultivar Conilon Vitória - Incaper 8142. The success of shaded plantations depends the choice of the shade responsive genotypes and appropriate shading level.

Preweaning losses of piglets as a result of index selection for reduced backfat thickness and increased growth rate

1993 ◽  
Vol 73 (2) ◽  
pp. 437-442 ◽  
Author(s):  
R. M. McKay
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
Selection Index ◽  
Backfat Thickness ◽  
Index Selection ◽  
Selection For ◽  
Preweaning Period

Index selection for reduced backfat thickness and increased postweaning growth rate resulted in increased preweaning death losses due either directly or indirectly to the sow in the Yorkshire and Hampshire breeds. This resulted in a reduced percentage of piglets weaned in the Yorkshire breed. Key words: Swine, selection index, preweaning period, mortality, survival

Surface streaking and fecal coliform levels

1984 ◽  
Vol 11 (2) ◽  
pp. 351-355 ◽  
Author(s):  
Merv D. Palmer
Keyword(s):  
Growth Rate ◽  
Key Words ◽  
High Velocity ◽  
Fecal Coliform ◽  
Fecal Coliforms ◽  
Surface Currents

The measurement of the dilution and die-off of fecal coliforms in high velocity, wind-generated surface currents is discussed. The dispersion in the streaks is similar to that found in oil slicks. It was found that the high velocities and slower growth rate of the dispersion in the streaks resulted in fecal coliform levels about four times higher than those found in water areas not affected by the streaking. Key words: surface streaks, fecal coliforms—dilution, bacterial levels.

Functional analysis of a duplicated linked pair of ribosomal protein genes in Saccharomyces cerevisiae

1990 ◽  
Vol 10 (11) ◽  
pp. 6097-6100
Author(s):  
D M Donovan ◽  
M P Remington ◽  
D A Stewart ◽  
J C Crouse ◽  
D J Miles ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Functional Analysis ◽  
Growth Rate ◽  
Ribosomal Protein ◽  
Vegetative Growth ◽  
Maximum Growth ◽  
Gene Replacement ◽  
Maximum Growth Rate ◽  
Ribosomal Protein Genes ◽  
Genome Copy

Ribosomal protein genes RP28 and S16A (RP55) are closely linked. Another set of this pair of genes exists in the genome (copy 2), genetically unlinked to copy 1. By using gene replacement techniques, we have shown that RP28 from copy 1 is required for vegetative growth and that the cells need S16A from copy 2 to achieve maximum growth rate.

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