scholarly journals Growth of wild muskoxen under two nutritional regimes in Greenland

Rangifer ◽  
1994 ◽  
Vol 14 (1) ◽  
pp. 3 ◽  
Author(s):  
Carsten Riis Olesen ◽  
Henning Thing ◽  
Peter Aastrup
Keyword(s):  
Body Weight ◽  
Food Supply ◽  
Sexual Maturity ◽  
Significant Proportion ◽  
Seasonal Fluctuation ◽  
East Greenland ◽  
Forage Plants ◽  
Nutritional Conditions ◽  
One Year ◽  
Maximum Body

Growth of muskoxen in Jameson Land, East Greenland (EG) and in Angujaartorfiup Nunaa, West Greenland (WG) is affected by the different nutritional conditions in the two areas. The abundance and availability of forage plants is highest in WG. Muskoxen in WG reach sexual maturity one year earlier than muskoxen in EG. A significant proportion of female muskoxen in WG conceive at the age of 16 months and give birth to their first calf as two years olds. The horn bases of the muskox bulls in WG are fully developed during their third year of life, but their maximum body weight (BW) is attained at the age of six. Average BW of adult bulls (4 yr+) in WG is 306 kg which is 23 % greater than in adult bulls in EG. BW is seasonally more variable in EG than in WG owing to greater seasonal fluctuation in food supply.

scholarly journals Productive and reproductive performances of indigenous chicken in the rural condition of Bangladesh

2017 ◽  
Vol 46 (2) ◽  
pp. 121-127
Author(s):  
S Jahan ◽  
F Islam ◽  
MSA Bhuiyan ◽  
AKFH Bhuiyan
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Sexual Maturity ◽  
Body Weight Gain ◽  
Reproductive Traits ◽  
The Other ◽  
Indigenous Chicken ◽  
Indigenous Chickens ◽  
Selection For ◽  
One Year

The study was aimed at investigating the productive and reproductive performances of the rural chicken in Bangladesh. A total of 200 indigenous chickens in the villages of Sherpur district in Bangladesh was used in this study to collect the data on body weight at hatch (BWH), body weight at sexual maturity (BWS), body weight gain up to sexual maturity (BSBG), body weight gain from sexual maturity to one year of age (BYSG), body weight at one year of age (BWY), age at sexual maturity (AGSX), eggs per clutch (EGC), clutches per year (CLY), hatchability (HATCH) and survivability (SURV). The data showed that cap headed (CH) chickens were good meat producer (1027.14±25.32g meat at one year of age), and Non-Descript Deshi (ND) chickens were good egg producer with 12.03±0.11 eggs per clutch and 4.15±0.07 clutches per year, respectively. The effects of village, sex and type of birds on AGSX of indigenous chickens were significant but, only the effects of chicken type on EGC were significant (P<0.01). At present study, most of growth and reproductive traits found positively correlated and this might be suggestive that selection for one trait would affect the other positively. These results could be used as a guideline for planning, conservation and improvement of indigenous chickens of Bangladesh.Bang. J. Anim. Sci. 2017. 46 (2): 121-127

Effects of age and body weight on the proportion of females breeding in a population of roe deer (Capreolus capreolus)

1992 ◽  
Vol 70 (8) ◽  
pp. 1541-1545 ◽  
Author(s):  
Jean-Michel Gaillard ◽  
Antoine J. Sempéré ◽  
Jean-Marie Boutin ◽  
Guy Van Laere ◽  
Bernard Boisaubert
Keyword(s):  
Body Weight ◽  
Reproductive Success ◽  
Sexual Maturity ◽  
Roe Deer ◽  
Significant Proportion ◽  
Capreolus Capreolus ◽  
Reproductive State ◽  
Blood Samples ◽  
Young Females ◽  
Very High

The reproductive state of female roe deer (Capreolus capreolus) (n = 140) caught during 4 consecutive winters (January and February) was determined from progesterone concentrations in blood samples. We found that (i) females older than 20 months were pregnant almost every year, indicating that though monoestrous, this species can achieve a very high conception rate (98%); (ii) a significant proportion of females 20 months of age (corresponding to the usual age at first pregnancy) had not reached sexual maturity; and (iii) body weight measured in winter could be used to predict the probability of pregnancy for young females (20 months of age) but not for older females. The correlation observed between age, body weight, and reproductive success suggests the hypothesis that the proportion of young females that breeds is density dependent. Ecological conditions mediated by social behaviour and prevailing during the spring of birth could constitute the ultimate factor determining pregnancy rate at 20 months.

scholarly journals Food Supply, Body Weight, and Activity in Great Britain, 1943-9

BMJ ◽  
1953 ◽  
Vol 1 (4801) ◽  
pp. 75-78 ◽  
Author(s):  
J. M. Harries ◽  
D. F. Hollingsworth
Keyword(s):  
Body Weight ◽  
Great Britain ◽  
Food Supply

scholarly journals DOMINANCE AND EPISTASIS IN HETEROSIS OF WHITE LEGHORN STRAIN CROSSES

1987 ◽  
Vol 67 (3) ◽  
pp. 663-680 ◽  
Author(s):  
R. W. FAIRFULL ◽  
R. S. GOWE ◽  
J. NAGAI
Keyword(s):  
Body Weight ◽  
Sexual Maturity ◽  
Egg Production ◽  
Significant Contribution ◽  
Production Traits ◽  
White Leghorn ◽  
Cross Combination ◽  
Commercial Strain ◽  
Better Than

Four unrelated pure strains of White Leghorns including a grandparent strain from industry and 12 two-strain, 24 three-strain, 24 four-strain and 12 F2 strain crosses produced contemporaneously were used to examine the role of dominance and epistasis in heterosis. A control strain and a commercial strain were also included. For egg weight, the heterosis observed closely approximated that expected due to dominance alone. For sexual maturity and body weight, dominance was the major component of heterosis, but epistasis made a significant contribution — additive by additive (A × A) genetic effects for sexual maturity and 140-d body weight, and parental epistasis for mature body weight. Both dominance and epistasis played a significant role in heterosis for egg production traits. A × A, dominance by dominance (D × D) and additive by dominance (A × D) epistasis were all important for hen-housed egg production and hen-housed egg yield. For hen-day rate of egg production, A × A epistasis was significant only early in the laying year (to 273 d), A × D and D × D were significant to 385 d and in the full year (to 497 d); however, none (A × A, A × D and D × D) was significant near the end of lay (386–497 d). Overall heterosis estimates for full year egg production measured as hen-housed egg production to 497 d or hen-day rate from housing to 497 d clearly showed that on average two-strain crosses were superior to three-strain crosses which were superior to four-strain crosses which in turn exceeded the F2 crosses. Nevertheless, several three-strain crosses had performance for egg production that was equal to or better than the two-strain cross with the highest egg production. Thus, in commerce, where the level of egg production is of great economic importance, the testing and use of a specific three-way cross combination will usually result in a better commercial product. Key words: Heterosis, egg production genetics, epistasis, stocking rate, strain cross, White Leghorn

scholarly journals Occurrence and practical solvent possibility of gilts preinsemination anestrus

2010 ◽  
Vol 26 (1-2) ◽  
pp. 37-46 ◽  
Author(s):  
I. Stancic ◽  
M. Gagrcin ◽  
M. Jovicin ◽  
S. Jovanovic
Keyword(s):  
Body Weight ◽  
Sexual Maturity ◽  
Good Health ◽  
Reproductive Efficiency ◽  
Ovarian Activity ◽  
Genetic Traits ◽  
Paper Review

Gilts reproductive efficiency is one of the primary factors of successful piglets' production. This performance, among other things, is expresses by the number of pregnant gilts, with desirable genetic traits, body weight and age, sexual maturity status, and general good health, provided for the replacement of sows in primary herd. This goal is very difficult to achieve in practical conditions. The main reason is occurrence of prolonged preinsemination anoestrus (oestrus was not detected even after 8 months of age). This paper review the occurrence of prolonged preinsemination anoestrus, based on the results of our and study of other authors. All studies consistently show that, in most of these gilts, pubertal cyclic ovarian activity were established, that silent oestrus occurred in only 4% of the cyclic gilts, and that this problem can be solved by applying appropriate technologies for oestrus detection, and by treatment with adequate hormonal preparations.

scholarly journals EFISIENSI PENGGUNAAN INPUT PAKAN DAN KEUNTUNGAN PADA USAHA TERNAK BABI DI KECAMATAN TARERAN KABUPATEN MINAHASA SELATAN

ZOOTEC ◽  
2014 ◽  
Vol 34 (1) ◽  
pp. 62 ◽  
Author(s):  
Rivo E Kojo ◽  
V V.J Panelewen ◽  
M A.V Manese ◽  
Nansi Santa
Keyword(s):  
Body Weight ◽  
Production Cost ◽  
Sampling Method ◽  
Secondary Data ◽  
Total Cost ◽  
Animal Body ◽  
Pig Farming ◽  
Pig Farm ◽  
Data Collections ◽  
Maximum Body

ABSTRACTFEED EFFICIENCY AND PROFITABILITY OF PIG FARM AT TARERAN DISTRICT OF SOUTH MINAHASA REGENCY. Tareran district is located in the South Minahasa regency consisted of 12 (twelve) villages and has the area of 7602.45 hectares or 76024.5 Km2. Generally, Tareran community work as farmers. The most pig populations at Tareran district were found at the three villages including villages of Lansot, Rumoong Atas, and Rumoong Atas Dua. The problems of this study are that; first, is the use of production cost in the pig business at the Tareran district efficient? Second, does the production cost provide benefits? Research objectives are to evaluate the type and total cost of production in the pig business at the Tareran district, to analyze the efficiency of input usedin pig farming, and to determine the optimum use of inputs in achieving the business benefits pigs. The research was conducted in the Tareran district of South Minahasa Regency involving the number of 30 breeders as respondents. Data collections were conducted in the period time of 2 months. The data in this study were obtained from two sources of primary and secondary data. Samples were taken using purposive sampling method. The use of this technique was always based on certain characteristics obtained through the population. The results of these studies showed the production cost of pig farm was Rp18.557.038 per period per year with a gain of about Rp 13.611.309 per period per year. Inefficient use of food inputs indicating to the farmers need to reduce feeding cost because it caused cost redundancy. It was known that animal body weight achieved was different for each type of pig. In addition, the use of ration inputs to achieve maximum body weight was also different for each animal.Keywords: Efficiency, Ration Input, Profit, Pig Farm, Tareran District.

scholarly journals Clinical and Contrast-Enhanced Ultrasound Echography Outcomes in Psoriatic Arthritis Patients after One Year of Continuous Therapy with Anti-TNF Drugs

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Claudio Bonifati ◽  
Fulvia Elia ◽  
Dario Graceffa ◽  
Fabrizio Ceralli ◽  
Elisa Maiani ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Significant Proportion ◽  
Joint Inflammation ◽  
Joint Involvement ◽  
Contrast Enhanced Ultrasound ◽  
Continuous Therapy ◽  
Clinical Variables ◽  
Contrast Enhanced ◽  
Before And After ◽  
One Year

Background. We wanted to verify retrospectively the proportion of patients with psoriatic arthritis who were in remission after 1 year of continuous therapy with either etanercept or adalimumab. Remission was defined as the absence of both clinical and contrast-enhanced ultrasound (CEUS) findings suggestive of joint inflammation. Patients and Methods. The data of twenty-five patients with psoriatic arthritis were available for the clinical and CEUS evaluations before and after 1 year of continuous therapy with etanercept or adalimumab. The count of swollen (ACR66), tender (ACR68), and active inflamed joints (AJC) was used to measure the severity of joint involvement. PASI was used to score the severity of psoriasis. HAQ, DLQI, VAS pain, and VAS itching were administered to each patient before starting therapy and every 3 months, up to 1 year. Results. Eight (32%) out of twenty-five patients were in remission after 1 year of therapy with etanercept or adalimumab. A significant reduction of all clinical variables analysed was seen during the course of therapy. Conclusion. Although a significant proportion of patients achieved remission of arthritis after 1 year of effective anti-TNF therapy, the majority of them continued to have either clinical or CEUS findings suggestive of persistence of joint inflammation.

Transpyloric Feeding in the Newborn: Use in Neonates with and without Respiratory Failure

1983 ◽  
Vol 28 (4) ◽  
pp. 347-349 ◽  
Author(s):  
M. Mulla ◽  
I. Mitchell
Keyword(s):  
Body Weight ◽  
Intensive Care ◽  
Respiratory Failure ◽  
Respiratory Disease ◽  
Low Birthweight ◽  
Standard Technique ◽  
Respiratory Illness ◽  
Maternity Hospital ◽  
Major Complications ◽  
One Year

In a peripheral maternity hospital providing Intensive Care for 5274 deliveries per annum, NJ feeding was attempted, in one year, in 57 neonates. One third of these weighed less than 1500 g at birth and 41 (71.9%) had respiratory disease. A standard technique, and a commercially available tube was used, and the tube was passed to the jejunum within 24 hours in 46 (80.7%) of the babies. NJ feeding was continued for varying periods, up to 50 days. The volume of milk given varied with the duration of the feed but feeds of up to 244 ml of milk/Kg body weight/day were achieved. Thirty-eight (66.6%) of the babies regained their birthweight by 20 days and major complications were uncommon. We have shown that NJ feeding can be used in low birthweight babies with serious respiratory illness, even when resources are limited.

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