scholarly journals Factors Determining Survivability Traits of Charollais, Kent Lambs, and their Crossbreds During Rearing

2020 ◽  
Vol 68 (3) ◽  
pp. 539-549
Author(s):  
Anežka Málková ◽  
Martin Ptáček ◽  
Luděk Stádník ◽  
Jaromír Ducháček
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Mixed Method ◽  
Model Equation ◽  
Performance Data ◽  
Significance Level ◽  
Selection Program ◽  
Commercial Flock ◽  
Dependent Variables ◽  
Extensive Farming

The aim of this work was to evaluate the effect of birth weight on the survival of Charollais, Kent and their crossbreds in breeding and also on their meat performance for Charollais and Kent lambs. Data were evaluated for the six years period in the commercial flock. The total number of lambs used for evaluation was 1,197. The data were passed through the SAS STAT program using the MIXED method. In the model equation, all the dependent variables of the survival indicator were significantly statistically detectable with a significance level of P < 0.01. The results indicated that survivability lambs was significantly influenced by birth weight and litter size (P < 0.05). Meat performance of lambs was affected the most combined year and month, breed and litter size (P < 0.05). The results suggest better survivability abilities for the crossbred than the pure-bred population. Despite the lack of meat performance data, it is interesting to consider a possible selection program for the breeds, Charollais and Kent, to improve the survival of lambs for extending extensive farming methods. However, also by improving flock management we will achieve better survivability results for lambs.

scholarly journals KINERJA KAMBING SABURAI YANG DIPELIHARA PETERNAK DI DESA GISTING ATAS KECAMATAN GISTING KABUPATEN TANGGAMUS

2020 ◽  
Vol 4 (2) ◽  
pp. 98-103
Author(s):  
Ananta Maulana Fikri ◽  
Kusuma Adhianto ◽  
Ali Husni ◽  
Arif Qisthon
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Research Method ◽  
Descriptive Analysis ◽  
Performance Data ◽  
Data Recording ◽  
Profile Data ◽  
Weaning Weight ◽  
Average Performance ◽  
Using Data

The aim of this research  was to determine the performance of Saburai goats reared by farmer in Gisting Atas Village, Gisting District, Tanggamus Regency. These research was conducted in June until August 2019 in Saburai goat breeding group at Gisting Atas Village, Gisting District, Tanggamus Regency, Lampung Province.  The research used 14 farmers as respondents and their Saburai goats with various age levels, namely  at kid, young goat, and dam.  The research method used was direct interviews and observations in the field which include collecting farmer profile data, while livestock performance data was observed using data recording of the animal. The data was analyzed by descriptive analysis. The results showed that 100% of farmers motivation  was to increase their income. Each farmer  had 10 tail of goat in average. The average performance of goats were kidding intervals of 310.43±49.70 days, litter size of 1.88±0.40 tails, postpartum oestrus of 61.58±9.72 days, postpartum mating of 149.11±51,19 days, birth weight of 2.83±0.11 kg, weaning weight of 11.28 ±1.36 kg, and yearling weight of 25.98±2.93 kg. The Conclusion of this research was that the performance of Saburai goats that are kept by farmers has decreased if compared with performance of many years before current research.   Keywords : Gisting Atas, Performance, Saburai Goat, Tanggamus Regency.

scholarly journals The impact of maternal genetic merit and country of origin on ewe reproductive performance, lambing performance and ewe survival

2021 ◽  
Author(s):  
N Fetherstone ◽  
N McHugh ◽  
T M Boland ◽  
F M McGovern
Keyword(s):  
New Zealand ◽  
Birth Weight ◽  
Litter Size ◽  
Country Of Origin ◽  
Reproductive Traits ◽  
Gestation Length ◽  
Genetic Merit ◽  
Genetic Groups ◽  
One Year ◽  
The Impact

Abstract The objective of this study was to investigate the impact of the ewe’s maternal genetic merit and country of origin (New Zealand or Ireland) on ewe reproductive, lambing and productivity traits. The study was performed over a four year period (2016 to 2019) and consisted of three genetic groups: high maternal genetic merit New Zealand (NZ), high maternal genetic merit Irish (High Irish) and low maternal genetic merit Irish (Low Irish) ewes. Each group contained 30 Suffolk and 30 Texel ewes, selected based on the respective national maternal genetic indexes; i.e. either the New Zealand Maternal Worth (New Zealand group) or the €uro-star Replacement index (Irish groups). The impact of maternal genetic merit on reproductive traits such as litter size; lambing traits such as gestation length, birth weight, lambing difficulty, mothering ability, and productivity traits such as the number of lambs born and weaned were analyzed using linear mixed models. For binary traits, the impact of maternal genetic merit on reproductive traits such as conception to first AI service; lambing traits such as dystocia, perinatal lamb mortality and productivity traits such as ewe survival were analyzed using logistic regression. New Zealand ewes outperformed Low Irish ewes for conception to first AI (P&lt;0.05) and litter size (P=0.05). Irish ewes were more likely to suffer from dystocia (6.84 (High Irish) and 8.25 (Low Irish) times) compared to NZ ewes (P&lt;0.001); birth weight and perinatal mortality did not differ between groups (P&gt;0.05). Lambs born from NZ ewes were 4.67 (95% CI: 1.89 to 11.55; P&lt;0.001) and 6.54 (95% CI: 2.56 to 16.71; P&lt;0.001) times more likely to stand up and suckle unassisted relative to lambs born from High or Low Irish ewes, respectively. New Zealand and High Irish ewes had a greater number of lambs born and weaned throughout the duration of the study compared to their Low Irish counterparts (P&lt;0.001). New Zealand ewes tended to be more likely to survive from one year to the next compared to Low Irish ewes (P=0.07). Irish ewes of high maternal genetic merit outperformed their Low counterparts in total number of lambs born and weaned per ewe, but performance did not differ across other traits investigated. This highlights the importance of continuous development of the Irish maternal sheep index to ensure favourable improvements in reproductive, lambing and productivity traits at farm level. Overall, results demonstrate the suitability of NZ genetics in an Irish production system.

145 Effect of Substandard Teats on Piglet and Sow Performance

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 133-134
Author(s):  
Mark Knauer ◽  
Zack Peppmeier
Keyword(s):  
Mammary Gland ◽  
Birth Weight ◽  
Litter Size ◽  
Mixed Models ◽  
Research Station ◽  
Large White ◽  
Chi Square ◽  
Maternal Line ◽  
Chi Square Test ◽  
Piglet Survival

Abstract The objective of the study was to evaluate sow teat quality in relation to subsequent reproductive throughput. Data included one cohort of 42 Landrace × Large White second parity maternal line sows at the Tidewater Research Station (Plymouth, NC). Functional teats (FUNCTIONAL) were classified pre-farrow as acceptable (ACCEPTABLE) or substandard (SUBSTANDARD). Teats were categorized as SUBSTANDARD when teat size was ≤75% of ACCEPTABLE. At day 20 of lactation, ACCEPTABLE and SUBSTANDARD were assessed for the presence of a swollen mammary gland and piglets observed nursing SUBSTANDARD were recorded (24 piglets from 15 litters). Means for FUNCTIONAL, ACCEPTABLE and SUBSTANDARD were 15.07, 13.59 and 1.48 teats, respectively. Biological dam traits included birth weight (BWT), total number born (TNB), litter size at weaning (LSW) and piglet survival (LSW/TNB). Weaning weight (WWT) was considered a trait of the nurse dam. Means for TNB, LSW, litter BWT and litter WWT were 13.4, 10.9, 17.8 kg and 57.8 kg, respectively. Data was analyzed using a chi-square test for binary traits and linear mixed models for continuous traits. At weaning, a greater (P &lt; 0.01) proportion of ACCEPTABLE had a functional mammary gland when compared to SUBSTANDARD (76 vs. 47%). Within litters, piglets nursing SUBSTANDARD tended (em&gt;P = 0.09) to be 158 grams lighter at weaning in comparison to ACCEPTABLE. Yet BWT of SUBSTANDARD piglets did not differ (em&gt;P = 0.60) from piglets nursing ACCEPTABLE. Across litters, an increase in one SUBSTANDARD tended (em&gt;P = 0.07) to reduce litter WWT by 1.74 kilograms. An increase in one SUBSTANDARD tended (em&gt;P &lt; 0.07) to increase piglet survival by 3.5%. Results suggest substandard teats, identified pre-farrow, are less likely to have a functional mammary gland at weaning, impair piglet quality yet may enhance piglet survival.

PSXII-28 Effects of the nutritional plane before and after breeding on performance of different hair sheep breeds

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 489-490
Author(s):  
Farida Belkasmi ◽  
Raquel V Lourencon ◽  
Ryszard Puchala ◽  
Terry A Gipson ◽  
Luana Ribeiro ◽  
...  
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Wheat Straw ◽  
Litter Size ◽  
Birth Rate ◽  
Average Daily Gain ◽  
Breeding Period ◽  
Hair Sheep ◽  
Cereal Grain ◽  
Before And After

Abstract Female hair sheep, 27 Dorper (DOR), 41 Katahdin (KAT), and 39 St. Croix (STC), were used to determine influences of nutritional planes before and after breeding on performance. There were 35 multiparous and 72 primiparous sheep, the latter 2.8±0.20 yr of age. Wheat straw [4% crude protein; dry matter (DM) basis] was consumed ad libitum and supplemented with approximately 0.25% initial body weight (BW) of soybean meal (SBM; Low) or a 1:3 mixture of SBM and rolled corn at 1% BW (High; DM). The supplementation period was 162 d, and with breeding of animals in 2 groups sequentially the pre-breeding period was 84 and 97 d and that after breeding began was 78 and 65 d. Wheat straw DM intake (1.75, 1.30, 1.57, 1.15, 1.80, and 1.38% BW; SEM=0.112), average daily gain (-46, 42, -44, 70, -47, and 51 g; SEM=7.3), and change in body condition score (-0.61, 0.36, -0.53, 0.27, -0.39, and -0.18 for DOR-Low, DOR-High, KAT-Low, KAT-High, STC-Low, and STC-High, respectively; SEM=0.058) were influenced (P &lt; 0.05) by supplement treatment. Birth rate (66.7, 93.5, 84.6, 95.5, 82.8, and 100.0; SEM=9.83) and individual lamb birth weight (4.50, 4.61, 4.28, 3.98, 3.73, and 3.88 kg; SEM=0.201) were not affected by supplement treatment (P = 0.063 and 0.787, respectively), although litter size (0.92, 1.21, 1.17, 1.86, 1.12, and 1.82; SEM=0.221) and total litter birth weight (5.84, 5.74, 5.92, 7.52, 5.04, and 6.78 kg for DOR-Low, DOR-High, KAT-Low, KAT-High, STC-Low, and STC-High, respectively; SEM=0.529) were greater (P &lt; 0.05) for High than for Low. In conclusion, although there was some compensation in wheat straw intake for the different levels of supplementation, SBM given alone rather than with cereal grain adversely affected body weight and condition and reproductive performance, the latter primarily through litter size but also via a trend for an effect on birth rate.

scholarly journals Effects of cooling on the reproductive performance of gilts

2016 ◽  
Vol 20 (2) ◽  
pp. 357-361
Author(s):  
J.O. Oyedeji ◽  
G.O. Imagbenikaro
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Reproductive Performance ◽  
Feed Intake ◽  
Cooling System ◽  
Large White ◽  
Feed Cost ◽  
Randomized Design ◽  
Significant Difference ◽  
Level Of Significance

The study examined the effect of cooling on the reproductive performance of gilts using 27 Large White Experimental Gilts on a Completely Randomized Design (CRD) with 3 systems of cooling, namely Wallow Cooling (WC), Sprinkler Cooling (SC) and Zero Cooling (ZC). Gilts were weighed at the commencement of the experiment and thereafter fed ad libitum from service to farrowing. Feed intake till farrow, feed cost, gilt weight at farrow, date of farrow, litter size and weight were recorded. The feed/piglet weight, feed intake/litter, feed cost/litter and birth weight/piglet were derived. The results showed that feed intake per litter and feed per piglet weight were highest for gilts placed on WC(P< 0.05), followed by SC and least for sow placed on ZC; gilt weight before farrow was highest for sow placed on SC (69.78±0.92), followed by ZC (69.33±0.94) and least for gilts placed on WC (67.33±0.87); litter sizes of gilts placed under the WC and SC systems were similar (5.6±0.41) while that under the ZC system was comparatively smaller (5.4±0.40);while the date of farrow was lowest in the ZC system (113.8±0.32) followed by SC (114.0±0.33) and highest under the WC (114.1±0.33). However, the feed intake per litter, feed per piglet weight, litter sizes of gilts, birth weight per piglet of gilts and the average date of farrow among gilts placed on WC, SC and ZC were not statistically different at 5% level of significance. Though, there is no significant difference in the performance among gilts placed on WC, SC and ZC, temperature regulation through provision of efficient cooling system in piggery would help to increase litter size, improve feed intake per litter and reduce the average cost of feeding gilt per day in maximizing reproductive performances in pigs.Keywords: Cooling, gilts, service, farrow, piggery, litter size, piglet and birth weight

scholarly journals The effects of breed, sire and environmental factors on the birth and weaning weight of lambs

2020 ◽  
Vol 108 (4) ◽  
pp. 70-78
Author(s):  
S. Kramarenko ◽  
◽  
A. Kramarenko ◽  
S. Lugovoy ◽  
D. Balan ◽  
...  
Keyword(s):  
Birth Weight ◽  
Environmental Factors ◽  
Litter Size ◽  
Analysis Of Variance ◽  
Significant Influence ◽  
Research Data ◽  
Weaning Weight ◽  
Factors Influencing ◽  
Size Type

The effects of breed, sire and environmental factors on the birth and weaning weight of lambs The aim of this study was to determine the effect of some important factors influencing on the birth and weaning weight variability in lambs. Data from 2603 ewes was included in the analysis, where 3961 lambs were obtained during the five years of the research. Data was tested using analysis of variance (ANOVA) with the GLM procedure of Minitab Release 13.1. Our results presented significant influence on the year of lambing, breed, ram genotype, age of a dam, type of a birth (litter size), sex of a lamb and on the birth weight and weaning weight of lambs. Keywords: birth and weaning weight of lambs; ram genotype; year of lambing; age of ewes; litter size (type of birth); sex of a lamb; the Ascanian fine-fleece breed.

scholarly journals Evaluation of Growth Intensity in Suffolk and Charollais Sheep

2018 ◽  
Vol 66 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Tomáš Janoš ◽  
Radek Filipčík ◽  
Martin Hošek
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Body Dimensions ◽  
Growth Intensity ◽  
Diagonal Length ◽  
Growth Ability

The aim of the study was to evaluate the influence of breed (Suffolk, Charollais), sex (ram, ewes) and litter size (singles, twins, triplets) on the growth ability of lambs from birth to 300 days of age. Insignificantly higher (p > 0.05) birth weight (4.47 ± 1.07 kg), weight in 30 days (13,87 ± 3.28 kg), 100 days (36.51 ± 5.80 kg) and 300 days (79.00 ± 13.64 kg) was found in the lambs of the Suffolk breed. Higher birth weight was also associated with larger body dimensions in the Suffolk breed (height at withers 42.43 cm, diagonal length of body 43.60 cm). In 100 days, the lambs of Charollais were slightly bigger, in 300 days the height at withers and the diagonal length of body were nearly the same in both breeds. Higher growth intensity was recorded in rams (DG0−300: Ram = 239.87 g. day−1, Ewe = 221.67 g. day−1). With regard to the litter size, higher growth intensity was found in singles (234.77 g. day-1) when compared to lambs from twins (226.10 g. day−1) or triplets (225.63 g. day−1).

scholarly journals Evaluasi Produktivitas Domba Ekor Gemuk Berdasar Reproductive Rate

2018 ◽  
Vol 20 (2) ◽  
pp. 64
Author(s):  
Sigit Prastowo
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Reproductive Rate ◽  
Ovulation Rate ◽  
Variable Component

<p>Fat Tailed Sheep represent one of Indonesian livestock that having excellence of comparability with other ruminants livestock. The excellence is quickly adult, short of pregnant age, and has the nature of bearing twin, so if evaluated from development aspect will be very beneficial. Reproductive Rate (RR) is a mount of reproduction ability from a group of ewes. Reproductive Rate defined as amount of weaned lamb by ewe every year. Variable/component related to RR are litter size, lamb mortalities before weaning and lambing interval.</p><p>Litter size is general influenced by difference of breeds, age and sufficiency of nutrition. Litter size is peculiarly influenced by ovulation rate that determined by breed, age, nutrition and parity. Lamb age, litter size, birth weight, season, nutrition and parity are influenced lamb mortalities before weaning. Lambing interval determined by nutrition factor and management, which is matting pattern and lamb weaning.</p>

The effect of litter size, age of ewe and Booroola gene (Fee B) on the birth and placental characteristics of Texel ewes

1997 ◽  
Vol 1997 ◽  
pp. 179-179
Author(s):  
Jennifer M.L. Anderson ◽  
J.S. Boyd ◽  
M.J. Harvey ◽  
A. Waterhouse
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Placental Weight

It is widely recorded that placental weight varies a great deal in uniformly treated ewes, yet this variation remains unexplained (Mellor, 1983). The aim of this experiment was to assess the effects of differing parameters on birth weight, placental weight, and number and weight of cotyledons in Texel ewes carrying the Booroola fecundity gene.

Genetic analyses of piglet survival and individual birth weight on first generation data of a selection experiment for piglet survival under outdoor conditions

2007 ◽  
Vol 2007 ◽  
pp. 65-65
Author(s):  
R. Roehe ◽  
N. P. Shrestha ◽  
W. Mekkawy ◽  
P. W. Knap ◽  
K. M. Smurthwaite ◽  
...  
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Genetic Improvement ◽  
First Generation ◽  
Genetic Parameters ◽  
Selection Experiment ◽  
Postnatal Mortality ◽  
Breeding Programmes ◽  
Potential Benefits ◽  
Piglet Survival

Peri- and postnatal mortality of piglets is reported to be around 20% and genetic improvement in piglet survival has great potential benefits in terms of animal welfare, economics and the environment. The indication of an unfavourable genetic correlation between litter size and survival in particular points to the importance of including piglet survival in those pig breeding programmes that currently only aim to increase litter size. Phenotypically, individual birth weight is closely associated with piglet survival (Roehe and Kalm, 2000). Genetic parameters for piglet survival traits and individual birth weight therefore need to be estimated in order to genetically improve piglet survival efficiency

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