scholarly journals Amasya İlinde Yetiştirilen Karayaka Koyunlarının Bazı Döl Verim Özellikleri ve Kuzuların Büyüme Performanslarının Belirlenmesi

2021 ◽  
Vol 9 (11) ◽  
pp. 2022-2026
Author(s):  
Caner Tamer ◽  
Emre Şirin
Keyword(s):  
Weight Gain ◽  
Survival Rate ◽  
Litter Size ◽  
Reproductive Performance ◽  
Survival Rates ◽  
Live Weight ◽  
Reproductive Traits ◽  
Birth Season ◽  
Live Weight Gain ◽  
Project Data

This study was carried out to determine the growth and reproductive performance of Karayaka sheep in Amasya province within the scope of National Animal Breeding Project. Data were collected from 17529 Karayaka lambs of 20120 Karayaka sheep which were born during 2012 to 2015 birth season. In this study, the live weights, survival rates of the lambs in various periods and reproductive traits of Karayaka ewes were investigated. In this study, the live weights, daily live weight gain, survival rates (90th day) and reproductive traits of Karayaka ewes were investigated. The averages of reproductive traits of Karayaka sheep such as infertility, fertility, twins, fecundity, litter size and survival rate were 13.8%, 86.2%, 7.20%, 0.867, 1.01 and 89.0% respectively. The effects of year, sex and type of birth on the birth weights and the live weights of 90 days (weaning) of Karayaka lambs were found to be significant. Daily live weight gain was affected only by year and sex.

scholarly journals Comparison of Mutton Charollais Lambs and Their Cross Lambs Born from Indigenous Fat Tailed and F1 Prolific Breed Ewes

2018 ◽  
Vol 6 (10) ◽  
pp. 1419
Author(s):  
Müzeyyen Kutluca Korkmaz ◽  
Ebru Emsen
Keyword(s):  
Weight Gain ◽  
Embryo Transfer ◽  
Litter Size ◽  
Survival Rates ◽  
Live Weight ◽  
Progeny Test ◽  
Surrogate Mothers ◽  
Live Weight Gain

The objective of this study was to evaluate the effects of dam breed on lambs sired by Charollais rams and purebred Charollais lambs obtained via embryo transfer. Frozen Charollais semen and embryos, used to obtain crossbreed and purebred Charollais lambs, were imported from elite flock with pedigrees and progeny test in Canada.The study was conducted on the crossbred Charollais lambs born from Tushin, and Romanov F1 ewes (Romanov × Morkaraman), and Charollais lambs born from Awassi, Morkaraman and Tushin surrogate ewes. The data was collected on 61 lambs (23 Charollais: CH, 20 Tushin × Charollais: F1 CH and 18 Charollais × Romanov F1:COR) from birth to weaning. Average weights at birth for CH, F1 CH and COR lambs were 4.32 ± 0.18 kg, 4.17 ± 0.18 kg, 3.18 ± 0.19 kg and at the age of 60 days were 21.20 ± 1.07 kg, 20.94 ± 0.84 kg, 18.13 ± 0.91 kg, respectively. The genotype of dams significantly affected birth and weaning weights of crossbred lambs, but not average daily live weight gain (ADG). Litter size had constant significant effect on the traits evaluated. Survival rates of crossbred lambs from birth to weaning were affected by the dam genotype. Birth weights and survival rates of CH lambs born from embryo transfer were affected by recipient genotypes and Awassi ewes were found to be the best surrogate mothers.

scholarly journals Akkaraman Koyunlarında Gebeliği Son Döneminde Yapılan Ek Yemlemenin Kuzularda Doğum ve Çeşitli Dönemlerdeki Canlı Ağırlıklar Üzerine Etkisi

2017 ◽  
Vol 5 (11) ◽  
pp. 1353
Author(s):  
Emre Şirin ◽  
Ümit Uçan ◽  
Uğur Şen ◽  
Ercan Soydan
Keyword(s):  
Wheat Straw ◽  
Litter Size ◽  
Survival Rates ◽  
Reproductive Traits ◽  
Late Gestation ◽  
Control Group ◽  
Supplemental Feeding ◽  
Feed Supplement ◽  
Birth Season ◽  
Birth Type

This study was carried out to determine of effect of supplemental feeding during the late gestation on birth and other weights of lambs from Akkaraman sheep breed raised in Kırşehir. Data were collected from 554 Akkaraman lambs from 580 Akkaraman sheep which were born during 2015 birth season. Akkaraman sheep were divided into two groups. Wheat straw is given to both groups during pregnancy. Supplemental feeding group group (EYG), was given to concentrated feed supplement (400 g/animal) in addition to wheat straw during the last gestation period. Control group (KG) was given only wheat straw during pregnancy. In this study, the live weights, survival rates of the lambs in various periods and reproductive traits of Akkaraman ewes were investigated. The averages of reproductive traits of Akkarman sheep such as sterility, fertility, twins, abortion, fecundity and litter size in EYG and KG groups were %12, %9, %86, %91, %13, %5, %2, %0, 0.96, 0.95 and 1.12, 1.04, respectively. The survival rates of lambs on 90th days and 150th days in EYG and KG groups were determined as 84, 80% and 91, 91%, respectively. The means of the birth, 90 and 150. days age live weights in EYG and KG groups were found as 5.82±0.06 kg, 30.94±0.44 kg, 34.47±0.44 kg and 3.43±0.04 kg, 30.17±0.04 kg, 30.96±0.38 kg respectively. The effects of supplemental feeding, sex and birth type were found to be significant on the 120. days age on birth and live weights of sheep. The effects of birth type were found to be significant on the 90. days age live weights of sheep. As a result, supplemental feeding during the late gestation are increased live weights.

scholarly journals The use of probiotics based on strains of the genus Bacillus in quail feeding

2019 ◽  
Vol 49 (2) ◽  
pp. 70-76
Author(s):  
O. G. Merzlyakova ◽  
V. A. Rogachev
Keyword(s):  
Bacillus Subtilis ◽  
Weight Gain ◽  
Survival Rate ◽  
Bacillus Licheniformis ◽  
Control Diet ◽  
Live Weight ◽  
Growth Period ◽  
Feed Consumption ◽  
Control Group ◽  
Live Weight Gain

The use of trial specimens of probiotics based on strains of Bacillus subtilis, Bacillus licheniformis and their consortium was experimentally proved to be effective for quail feeding during their growth. The dynamics of live weight gain of quails was monitored. The experiment lasted for 60 days and was carried out in compliance with the standard methods. Quails that were studied were of the Japanese breed formed in four groups of 80 heads in each: one control group and three experimental ones at the age of one day. Quails were kept in a battery cage with all the required environment conditions met. All the groups were fed on the main (control) diet, developed taking into account the age and physiological characteristics of quails. However, birds of experimental groups 1-3 were additionally fed on probiotics based on strains Bacillus subtilis, Bacillus licheniformis and their consortium in the amount of 150 g/t of feed, respectively. The effect of new strains of probiotics and their consortium was tested during the study by the following parameters: the survival rate of birds, intensity of chicken growth, meat productivity and hematological indicators. The optimum variant of probiotics introduction into the diet of quails during their growth period was determined. The recommendations for the preparation of compound feeds with the use of probiotic supplements were developed. The chemical composition of quail feed and meat was studied in the biological laboratory by conventional methods of zootechnical analysis. The introduction of the consortium of strains Bacillus subtilis and Bacillus licheniformis in the amount of 150 g/t led to an increase in the survival rate of quails by 4.0%. The average daily live weight gain increased by 2.57%, feed consumption per one unit of produce decreased by 6.48%. When feeding quails on the consortium of probiotic strains Bacillus subtilis and Bacillus licheniformis in this rate, the mass of the eviscerated bird carcass increased by 3.61%, the protein content in the meat and its biological value increased by 1.06 and 11.11%, respectively. The hematological characteristics of the chickens remained within the physiological norm.

FEEDING EFFICIENCY ENZYME-PROBIOTIC ADDITIVE “BACELL” AND GRANULATED COMPOUND FEED “BIOPROD” FOR LAMBS OF THE DAIRY GROWING PERIOD

2021 ◽  
pp. 38-41
Author(s):  
A.YA. KULIKOVA ◽  
Keyword(s):  
Weight Gain ◽  
Survival Rate ◽  
Live Weight ◽  
Feeding Period ◽  
Live Weight Gain ◽  
Growing Period ◽  
Feeding Efficiency ◽  
Milk Feeding

Enzyme-probiotic additive “Bacell”, used for feeding lambs at the age of 25 to 112 days of the milk feeding period, increased the live weight gain by 43.3%, survival rate - by 7.5% and the sale value of lamb - by 19, 3%. Feeding lambs for 40 days (at the age from 25 to 65 days), granulated compound feed “Bioprod” increased live weight (during the experiment) - by 31.9%, survival rate - by 14.4%.

The effects of food level during lactation and early gestation on the reproductive performance of mature sows

1993 ◽  
Vol 57 (03) ◽  
pp. 437-445
Author(s):  
P. E. Hughes
Keyword(s):  
Litter Size ◽  
Reproductive Performance ◽  
Survival Rates ◽  
Live Weight ◽  
Food Level ◽  
Concentration Data ◽  
Large White ◽  
Plasma Progesterone ◽  
Growth And Survival ◽  
Early Gestation

AbstractSeventy-six Large White × Landrace sows from parities 2 to 6 were allocated to one of four treatments at day 110 of gestation on a parity and live-weight basis. The four treatments involved food levels of either 3 or 6 kg/day during a 28-day lactation followed by either 1·75 or 3·50 kg/day during the first 28 days of gestation. Litter size suckled was standardized at 10 piglets wherever possible. Live weight and backfat changes were monitored in all sows and litter growth and survival rates were recorded. Post weaning all sows were given daily boar contact and mated twice at the first observed oestrus. A single blood sample was collected from each sow at days 7, 14, 21 and 28 of gestation for determination of plasma progesterone concentration. Data on litter size and piglet birth weights were collected at the subsequent parturition. Sows low-fed during lactation lost significantly more live weight (31·2v.5·8 kg,P< 0·01) and P2 backfat (3·6v.1·9 mm,P< 0·05) in lactation than did high-fed sows. Underfeeding the lactating sow also significantly reduced the weaning weight of the litter (62·3v.68·7 kg for low-v.high-fed sows,P< 0·05), but did not significantly change either creep food intake by the litter or pre-weaning mortality rate. Parity 2 sows weaned significantly heavier piglets and litters than did sows from parities 3 to 6 (7·48 and 74·9 kgv.6·72 and 63·8 kg respectively,P< 0·01). Food level in lactation did not significantly influence the length of the rebreeding interval (6·3v.7·3 days for high-v.low-fed sows) and although there was a two-fold difference in the proportion of sows failing to exhibit oestrus post weaning (0·08v.0·16 for high-v.low-fed sows) this difference was also not significant. Lactation food level did not significantly influence either sow live-weight or backfat change in gestation, plasma progesterone concentrations during early gestation or subsequent litter size. However, sows low-fed in lactation did tend to produce fewer piglets in the subsequent litter (9·54v.10·75 piglets born alive for low- and high-fed sows respectively,P= 0·062). Post-weaning reproductive performance was significantly affected by sow live weight (P< 0·05) and backfat (P< 0·01) at parturition, and live weight (P< 0·01) and backfat (P< 0·05) at weaning, but not by changes in these parameters during lactation. Food level in early gestation did not significantly influence either plasma progesterone concentrations, the size of the subsequent litter (10·09v.20·29 piglets born alive for high- and low-fed sows respectively) or mean piglet birth weight (1·27v.2·22 kg for high- and low-fed sows respectively). It is concluded that (1) both lactation food level and parity may alter pre-weaning piglet growth, and (2) the effects of lactation food level on the subsequent reproductive performance of mature sows appear to be different from those seen in parity 1 sows.

Reproductive traits of female rabbits as affected by heat stress and lighting regime under subtropical conditions of Egypt

2004 ◽  
Vol 78 (1) ◽  
pp. 119-127 ◽  
Author(s):  
I. F. M. Marai ◽  
A. A. M Habeeb ◽  
A. E. Gad
Keyword(s):  
Body Weight ◽  
Heat Stress ◽  
Weight Gain ◽  
Respiration Rate ◽  
Litter Size ◽  
Milk Yield ◽  
Live Weight ◽  
Milk Intake ◽  
Live Weight Gain ◽  
Litter Weight

AbstractThe present work was planned to study the effects of different lighting regimes in both mild and hot periods of the year on New Zealand White doe rabbit traits. The light regimes used were natural daylight as control, 16 h light and 8 h darkness, 12 h light and 12 h darkness, and 8 h light and 16 h darkness. The traits studied were thermoregulatory parameters (respiration rate and temperatures of ear, rectum and skin), type of mating necessary, conception rate, gestation period, fur plucking, behavioural indicators of stress, litter size, litter weight, kit body weight, kit daily gain in weight, milk yield, kit milk intake, efficiency of conversion of milk into live-weight gain and kit mortality, at weekly intervals between birth and weaning at 35 days. Estimation of temperature-humidity index indicated that the doe rabbits were exposed to very severe heat stress, during the hot period of the year. Period of the year (heat stress) affected adversely many of the doe traits studied. The effects were significant (P < 0·001, 0·01 or 0·05) on thermoregulatory parameters (respiration rate and temperatures of ear, rectum and skin), litter weight at days 21 and 28 of age, kit body weight at birth, milk yield of the doe at day 7 of suckling and milk intake per kit at 7 and 14 days of age. Exposure of doe rabbits to a long daylight regime affected adversely many of the traits studied, while the contrary occurred with short daylight. The effects were significant (P < 0·001, 0·01 or 0·05) on litter size at all ages except at birth, litter weight at 14, 21 and 28 days of age, milk yield on all days studied, efficiency of conversion of milk into live-weight gain at days 7, 21 and 28 and mortality at birth and pre-weaning. There was no significant interaction between period of the year and light regime on any of the traits examined. Therefore, only the main factors are reported.

The effect of age and growth traits on puberty and reproductive performance in the gilt

1988 ◽  
Vol 46 (3) ◽  
pp. 427-436 ◽  
Author(s):  
P. J. Burnett ◽  
N. Walker ◽  
D. J. Kilpatrick
Keyword(s):  
Litter Size ◽  
Reproductive Performance ◽  
Growth Traits ◽  
Block Design ◽  
Survival Rates ◽  
Live Weight ◽  
Significant Trend ◽  
Age And Growth ◽  
Regression Equations ◽  
Embryo Survival

ABSTRACTAn experiment involving 320 gilts was conducted to investigate the effects of age and growth traits on puberty attainment and reproductive performance in gilts given boar stimulation with or without exogenous gonadotropins. Following ad libitum feeding during rearing, groups of gilts were stimulated for puberty at one of four ages, namely 130, 150, 170 or 190 days. Within each age group, gilts were selected to maximize the variation in live weight, relocated, mixed and allocated to two treatments in a randomized-block design: (a) mature boar contact (boars only) and (b) boar contact plus an intramuscular injection of 400 i.u. pregnant mare's serum gonadotropin + 200 i.u. human chorionic gonadotropin (boars + PG600). Gilts were mated at puberty and slaughtered at 35 days post coitum.For the gilts on the boars-only treatment, the interval from stimulation to puberty decreased significantly (P < 0·05) and became less variable with ascending age at stimulation. Increasing live weight at a given age also reduced the interval from stimulation to puberty. Multiple regression equations involving age, live weight and backfat thickness at stimulation and growth rate from birth to stimulation were calculated to obtain a prediction equation for the interval from stimulation to puberty. The effects of age and live weight at mating on ovulation rate, embryo survival and number of live embryos 35 days post coitum were not significant.For the gilts on the boars + PG600 treatment, 92% attained puberty within 6 days of treatment, with a non-significant trend to improve with increasing age. Mating rates were similar to those on the boars-only treatment (90%). Ovulation rates were higher (P < 0·001) but embryo survival rates were lower (P < 0·001) in the boars + PG600 group, resulting in similar litter size at 35 days post coitum in the boars-only and boars + PG600 treatments. There was a non-significant trend for litter size to increase with age in the boars + PG600 treatment. Thirty-eight of the gilts treated with hormones failed to conceive and 53% were found by ovarian morphology at slaughter to be cycling normally with a tendency for this proportion to increase with age.

The effect of genetic merit for milk production and concentrate feeding level on the reproductive performance of Holstein-Friesian cows in a grass-based system

2003 ◽  
Vol 76 (2) ◽  
pp. 297-308 ◽  
Author(s):  
J. Kennedy ◽  
J. Kennedy ◽  
P. Dillon ◽  
K. O’Sullivan ◽  
F. Buckley ◽  
...  
Keyword(s):  
Weight Gain ◽  
Pregnancy Rate ◽  
Milk Production ◽  
Reproductive Performance ◽  
Repeated Measures ◽  
Live Weight ◽  
Live Weight Gain ◽  
Genetic Merit ◽  
Feeding Level ◽  
Concentrate Supplementation

AbstractThe objective of the study was to evaluate the effect on reproductive performance of varying level of concentrate supplementation with both high and medium genetic merit cows in a spring calving grass-based system of milk production. The effect of year, cow genetic merit for milk production and concentrate feeding level on milk production, body condition score, live weight, blood metabolites and dry-matter (DM) intake were studied. A repeated measures model with a factorial arrangement of genetic merit and concentrate feeding level was used to do this. Associations between these variables and pregnancy to first service (PREG1), pregnancy to first and second service (PREG12) and overall pregnancy (PREG) rates were assessed using logistic regressions for year 2.Cows were grouped into high (HM) and medium (MM) genetic merit based on their pedigree indices for milk production (PD milk). The HM cows had a PD milk of + 276 (s.d. 100) kg, while the MM cows had mean PD milk of + 81 (s.d. 95) kg. Within genetic merit groupings, cows were assigned to one of three concentrate feeding levels; low (LC), 376 kg; medium (MC), 810 kg; and high (HC), 1540 kg of concentrate per cow per lactation. In year 1, all 78 cows were second lactation animals, while in year 2, 71 cows (previously in year 1) were third lactation and 12 second lactation. All cows calved between February and April, and were presented for rebreeding from late April until late July each year.When treatment means were compared, genotype and concentrate feeding levels had no significant effects on reproductive performance while year was significant for most parameters. Comparing year 2 to year 1 pregnancy rate to first service (P 0•001; 37 v. 64%), pregnancy rate to first and second service (P < 0•05; 64 v. 81%), overall pregnancy rate (P < 0•05; 78 v. 92%) were lower. Also in year 2, cows had significantly higher milk yields at first insemination (36•9 v. 32•3 kg per cow per day), greater live-weight losses from calving to first insemination (-86 v. –53 kg per cow), lower live-weight gain in the 90 days after their first insemination (+ 24•6 v. + 34•2 kg per cow), higher DM intake (20•6 v. 17•3 kg DM per cow per day) and lower plasma glucose concentrations (3•18 v. 3•61 mmol/l) than in year 1.In year 2, there were significant negative associations between the likelihood of PREG12 and both PD milk and live-weight gain in the 90 days after first insemination. The results of this study indicate that continued selection for increased milk production, resulting in greater partitioning of energy to milk production rather than body reserves will reduce reproductive performance and offering higher levels of concentrate supplementation may not alleviate this problem.

Effects of rumen stimulatory licks on reproductive performance and live-weight gain of beef cattle in Botswana

1977 ◽  
Vol 24 (1) ◽  
pp. 49-55 ◽  
Author(s):  
B. S. Capper ◽  
D. Pratchett ◽  
T. W. Rennie ◽  
D. Light ◽  
A. Rutherford ◽  
...  
Keyword(s):  
Weight Gain ◽  
Beef Cattle ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Economic Value ◽  
Live Weight ◽  
Supplementary Feeding ◽  
Protein Nitrogen ◽  
Live Weight Gain ◽  
Growing Stock

SUMMARYThe effects of supplementary feeding of licks containing non-protein nitrogen on the reproductive performance of beef breeding cows and on the live-weight gain of growing stock in Botswana is described. The trials involved 1375 breeding cows at five artificial insemination centres, and 360 breeding cows and 269 growing stock under ranch conditions. These licks increased the percentage of pregnancies in cows under lactation stress by up to 20%, but had no effect on the reproductive performance of dry cows or cows with a calf older than 5 mo. In growing animals the provision of rumen stimulatory licks increased live-weight gain by an average of 12%, but was of doubtful economic value.

Sign in / Sign up

Export Citation Format

Share Document