scholarly journals A preliminary report on the production characters of three types of cattle in Ghana.

1963 ◽  
Vol 11 (5) ◽  
pp. 364-377
Author(s):  
G. Montsma

At the University of Ghana's Agricultural Research Station at Nungua observations were begun in 1957 on the performance of West African Shorthorn, N'Dama and Sokoto Gudali cattle. The main preliminary findings are discussed under the following headings: body weight, growth rate, milk yield, reproductive efficiency, and dentition and age. In spite of the fact that the N'Dama and West African Shorthorn are naturally small animals, body weight and growth rate could be substantially increased by better feeding. Insufficient data are as yet available on the Sokoto. Under the better-than-average feeding conditions at the station, av. body weight at 8 mths. was 305 lb. in the N'Dama, 340 lb. in the West African Shorthorn, and 470 lb. in the Sokoto. Maximum body weight at 8 mths. was 340, 360 and 550 lb. resp. In animals fed a concentrate supplement, av. 252-day milk yields per 100 lb. body weight were 295, 300 and 335 lb. for the N'Dama, West African Shorthorn and Sokoto resp. max. yields, expressed in a similar manner, being 416, 430 and 458 lb. resp. Milk yields were estimated by weighing the calves before and after suckling thrice daily for approx. 20 mins The av. calving percentages for the 3 breeds were 85, 83 and 76 resp. which are equivalent to calving intervals of 14-2, 14.5 and 15.8 mths. The av. age at 1st calving in the West African Shorthorn was estimated to be 3 yrs. (2.3-3.8). Insufficient data were available on the other 2 breeds. It is considered that, if adequately fed, heifers are capable of calving at 27-30 mths. of age. (Abstract retrieved from CAB Abstracts by CABI’s permission)

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Shi-Peng Zhu ◽  
Yu-wei He ◽  
Huan Chen ◽  
Zhi-Fang Sun ◽  
Na Ding ◽  
...  

Objective. To observe the effect of preventive acupuncture and moxibustion on blood lipid of menopause rats.Methods. Seventy 10-month-old SD rats with estrous cycle disorders were divided into three control groups and four treatment groups (n=10/group) and another ten 3.5-month-old female SD rats were chosen as young control group. Preventive acupuncture and moxibustion were applied at Guanyuan (CV 4). Body weight growth rate has been recorded. Plasma total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL), and high density lipoprotein (HDL) levels and uterusE2level were measured.Results. Compared to young control group, plasma TC and LDL increased and uterusE2reduced significantly in 12-month-old control group. Compared to 12-month-old control group, plasma TC and LDL level and body weight growth rate decreased while HDL level increased remarkably in preventive acupuncture 12-month-old group. Compared to 14-month-old control group, plasma TC level and body weight growth rate decreased remarkably in preventive moxibustion 14-month-old group.Conclusions. Preventive acupuncture and moxibustion can significantly decrease the plasma TG and LDL, increase the plasma HDL, and prevent fat accumulation. Our finding suggests that preventive acupuncture and moxibustion have beneficial effects on blood lipid. Different treatment effects were found between preventive acupuncture and preventive moxibustion.


Author(s):  
R. S. Oseredchuk ◽  
N. P. Babik ◽  
V. V. Fedorovych ◽  
E. I. Fedorovych ◽  
V. R. Dutka

The data on the dynamics of body weight changes, absolute and average daily gains, frequency rate of increase in body weight, relative growth rate and intensity of body weight growth of Limousine and Volyn Meat breeds heifers. Both studied breeds characterized by different body weight at different age periods. Newborn Limousine breed heifers are weighed 2,7 kg more (P < 0.05) than Volyn Meat breed heifers; at 3 months age the difference was 8.5 kg (P < 0.05) at 6 months – 14.6 kg, at 9 month – 20.8 kg (P < 0.05), at 12 months – 25,6 kg (P < 0.05), at 15–months – 31.9 (P<0,05), and at 18 months – 23.5 kg. Total and average daily gains in animals of both breeds were the highest for a period of 3 to 6 months of age. In the period from birth to 15 months of age preference for average daily gains were in Limousine, however, the difference was statistically significant only for the period of 0 – 3 months and amounted to 63,9 g (P < 0,05). From 15 to 18 months of age Limousine slightly conceded to Volyn Meat breeds on this parameter. In animals of both breeds magnification of body weight increased with age, but over the entire period (from birth to 18 months) this parameter in Volyn Meat heifers was 0.6 times better than Limousine heifers. The coefficients of relative intensity and tension increase of body weight in animals of both breeds were highest in the period from birth to 3 months of age. With age, these indicators declined. Mainly, the advantage was in Volyn meat breed heifers, but the difference was not statistically significant.


2017 ◽  
Vol 48 (3) ◽  
Author(s):  
Al-Chalabi & et al

This experiment was conducted at a closed poultry house , Poultry Research Station , office of Agricultural Research, Ministry of Agriculture, Baghdad, Iraq, for the period from 2/9 to 14/03/2016 for total rearing of 35 days. To diagnose and monitoring the Environmental factors such as temperature, humidity , density, and the carbon dioxide levels inside the house during winter season, and its impact on the productive performance of broiler chickens Rose 308 breed .The dimensions of the house was ,length 35 m x width 7.5 m x Height 2.5 m, by total space volume 3656.25 m3. The ventilation system in the house was (negative pressure type). The house is totally closed, small fans for (minimum ventilation) in the winter are functioned, and large fans for ventilation in the evaporative cooling operation were used in the summer. 1000 sexed birds were used in this experiment imported through commercial hatchery in Abu Ghraib. The house was divided into three thermal Zones in order to find out whether heterogeneity in environmental conditions is existed in the house and at bird level .as a result the impact on the homogeneity in the weights of marketed birds . The treatments have been distributed into 32 rearing cages by the following order: 8 cages with the density of 50 birds / cage, the remaining 24 cages were divided into the density of 25 birds / cage. The results showed that there were significant differences between the treatments in the rate of body weight ,body weight gain, feed intake and feed conversion efficiency among   densities and the three thermal zones due to the presence of cool air leaks into the house at the front ,End of the house, and its sides especially when fans are on , along with dead Air pockets that were identified in many places in the middle of the housed, yet this Zone was the one that had the best productive traits in comparison with the other two zones. The purpose of this experiment is to study environmental parameters homogeneity  inside the shed in addition to impact of CO2 levels and impact of birds density on productive traits.


1997 ◽  
Vol 22 (1) ◽  
pp. 399-399
Author(s):  
A. H. Hara ◽  
B.K.S. Hu ◽  
T. Y. Hata

Abstract Efficacy trials were conducted at the University of Hawaii at Manoa, Waiakea Agricultural Research Station in Hilo, HI. Flowers were harvested on 2 Apr from a commercial planting in Mt. View, HI, and transported to the Experiment Station for subsequent tests. Flower stems were divided into 18 groups arranged in 6 treatments with 3 replicates of 10 stems each and held in 19 liter buckets containing 11 liters of tap water. Flowers were treated on 3 Apr (rep 1) and 8 Apr (reps 2 and 3). Treatment consisted of placing the bucket of flowers in the hot air chamber at 44.4 °C, 60% r.h., 0.23 m3 s-1 fan circulation at 26 °C (measured) for 1-5 h at 1 h interval. The check was not treated. Immediately after treatment, flowers were enclosed in bags made from spunbonded polyester (Reemay 2006 UV [20 g/m2], DuPont Wilmington, DE) to prevent cross contamination. Twenty-four hours after treatment, thrips were extracted from 10 flowers (1 flower per stem) using Berlese funnels heated with a 60 watt incandescent light bulb. Thrips were collected in a 8:2:1:1 solution of ethanol, distilled H2O, acetic acid and glycerin. The number of adults and nymphs were counted and pooled for analysis. Data were subjected to ANOVA and means separated by Waller Duncan k-ratio t test k = 100.


1948 ◽  
Vol 38 (3) ◽  
pp. 243-302 ◽  
Author(s):  
L. R. Wallace

SUMMARYIn the investigation described, we have observed a t monthly intervals throughout gestation the changes taking place in a series of similar ewes, in lamb to the same ram, and each receiving the same standard diet.In following the live-weight growth curves of the ewes it was found that on a constant level of feeding the weight gains became greater during each succeeding month of pregnancy, and at corresponding stages were larger for ditocous than for monotocous ewes. This was found to be due to the fact that, although on our diet the ewes did gain slightly in actual body weight, the main increases in live weight resulted from the growth of the gravid uterus itself, and this increases in weight far more rapidly in the later stages of gestation, and is also heavier where twins are carried.


Nature ◽  
1961 ◽  
Vol 190 (4778) ◽  
pp. 773-774
Author(s):  
H. D. JORDAN

1965 ◽  
Vol 3 (3) ◽  
pp. 432-433
Author(s):  
Lalage Bown

This seminar was held under the auspices of the Department of Adult Education and Extra-Mural Studies, at the University of Ibadan. For a number of years, the Department has attempted to encourage African writing and the study of African literature, largely under the leadership of Chief Ulli Beier, originator and editor of the magazine Black Orpheus; and now that African works in English are included in the list of set books for the West African School Certificate, it seemed necessary to discuss systematically the teaching problems involved.


1980 ◽  
Vol 20 (104) ◽  
pp. 272 ◽  
Author(s):  
KD Atkins

An experiment was conducted at Temora Agricultural Research Station to compare birth weights, growth rates to weaning, and survival of lambs from five breeds. These data formed part of a larger study comparing the productivity of these breeds as possible dual-purpose ewe breeds. The breeds were a Border Leicester X Merino fixed halfbred (BLM), Corriedale, Polwarth, and a South Australian strong wool (S.A. Merino) and a medium wool Peppin strain of Merino. The descending order of ranking of the breeds on birth weight and growth rate to weaning was BLM, Corriedale, S.A. Merino, Polwarth and Peppin Merino. A significant breed x year interaction in pre-weaning growth rate was recorded, since the absolute differences between breeds increased as the overall mean growth rate increased. Breed means for the survival rate of single-born lambs ranged from 80.7 to 86.4 lambs weaned per 100 lambs born and they were not significantly different from each other. The mean survival rate of multipleborn lambs from the S.A. Merino and Polwarth breeds were 65.0 and 69.5 respectively, and these were significantly lower than the survival rate of multiples from the other breeds (76.8 to 80.4). Within breeds, birth weight was found to be positively related to survival at low birth weights but negatively related to survival at high body weights


2021 ◽  
Vol 35 (2) ◽  
pp. 242-251
Author(s):  
O. A. Olorunnisomo

Scarcity of quality forage during the dry season poses a serious problem to ruminant production in southwest Nigeria. Dried sweet potato (SP) vine and root have the potential to bridge the gap in feed supply for ruminants during this period. In a feeding trial, fifteen male West African dwarf (WAD) sheep were used to estimate the nutritive value of SP forage and root as a basat feed for ruminants during the dry season. Experimental diets consisted of SP forage and root in the following proportions, 0:100, 25:75, 50:50, 75:25, and 100:0 (forage. root). In the first part of the trial, growing WAD sheep were fed experimental diets for twenty weeks. Dry matter (DM) intake and growth rate of the animals were measured in the second part, digestibility and nitrogen balance of sheep fed the experimental diets were measured. Intake, growth rate, digestibility and nitrogen retention improved significantly (P < 0.05) when SP forage and root were mixed in the diet. The DM intake ranged from 1.8 to 4.9% body weight; growth rate, -34.1 to 86.43 g/day; DM digestibility, 64.6 to 70.4%; and nitrogen retained, 29.5 to 51.0%. Performance, digestibility and nitrogen utilization of WAD sheep was highest when SP forage and root formed equal proportions (50:50) in the diet. Mixing SP forage and root in the diet proved beneficial to growing sheep and equal proportions of the forage and root in the diet appear to be the most appropriate combination.


1970 ◽  
Vol 6 ◽  
pp. 84-88
Author(s):  
Mukesh Karki

The present study on body weight and feed efficiency for growth was carried out on 112 turkeypoults from day of hatch to 28 weeks of age during May to November 2002 at Poultry ResearchUnit of Regional Agricultural Research Station (RARS)-Parwanipur. Layer starter rationsupplemented with 6% fish meal + 0.3% lysine + 0.125% methonine was fed up to 8 weeks ofage, then after layer finisher diet was fed. The body weight, feed consumption was observed at 4weekly interval and feed efficiency and economics of rearing period in terms of income overfeed and poults cost was calculated. Significant increase in body weight was recorded up to 28weeks in male and 20 weeks in female. Male turkey had significantly higher body weight thanthat of female in all ages. Feed efficiency is best at earlier age but up to 16 weeks it is 3.77 formale after that it detoriates progressively. Male turkey exhibited better feed efficiency than thatof female for all weeks. Significantly higher return per bird was obtained from male than that offemale in all age. The profit per bird for both male and female was found maximum in 16 weeksof rearing, followed by 20 weeks and 24 weeks. Therefore, instead of waiting for highest bodyweight, it is better to sell turkey at 16 to 20 weeks of age to take maximum advantage of higherweight gain, higher efficiency of feed utilization and higher profit.Key words: Economics; feed utilization; growth; rearing period; turkeyDOI: 10.3126/narj.v6i0.3369Nepal Agriculture Research Journal Vol.6 2005 pp.84-88


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