scholarly journals Effects of birth weight and standardized litter size on growth performance of boars and subsequent reproductive performance

2017 ◽  
Vol 47 (4) ◽  
pp. 471 ◽  
Author(s):  
A Pietruszka ◽  
E Jacyno ◽  
A Sosnowska ◽  
M Kawęcka
Keyword(s):  
Birth Weight ◽  
Growth Performance ◽  
Litter Size ◽  
Reproductive Performance

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 Comparison of Milk and Reproductive Performance of Saanen and Saanen × Hair Goat Crossbreds (F1, B1 & B2) and Growth Performance of their Kids in Semi-Intensive Production System

2019 ◽  
Vol 7 (6) ◽  
pp. 871
Author(s):  
Mesut Yıldırır ◽  
Orhan Karadağ ◽  
Mustafa Yilmaz ◽  
Mehmet Akif Yüksel ◽  
Tamer Sezenler ◽  
...  
Keyword(s):  
Birth Weight ◽  
Growth Performance ◽  
Milk Yield ◽  
Reproductive Performance ◽  
Production System ◽  
Dry Matter ◽  
Live Weight ◽  
Dry Matter Content ◽  
Weaning Weight ◽  
Intensive Production

The aims of this study were to evaluate the traits of reproductive, milking and growth performance of Saanen and Saanen × Hair crossbreds (F1, B1 and B2) raised at the Bandırma Sheep Research Institute. The data were collected from 868 goats for reproductive performance and milk yield and from 1077 kids for survival performance between 2009-2012. Milk components (fat, protein, lactose and non-fat dry matter) of goats (n=162) and body weight changes of kid’s (n=64) were evaluated for one year in 2012. Estrus rates and survival rates were similar among all genotypes. Kidding rate was significantly higher in F1 goats than Saanen goats. Saanen goat had the lowest average mean daily milk yield compared with other genotypes. The effect of year and age were significant on milk yield. Goats in F1 and B1 genotypes had higher milk protein percentage and non-fat dry matter content in comparison with Saanen and B2 genotype. Milk fat and lactose contents were similar among genotypes. Birth weight and monthly live weight were similar between genotypes while weaning weight, six month live weight and yearling live weight were higher in B1 kids in comparison with Saanen kids. The effect of dam age and birth type were significant on birth weight, monthly live weight and weaning weight. The findings related to performance characteristics in goat genotypes investigated show that B1 genotype could be recommend for semi-intensive production system in the Western Anatolia.

Breeding Australian crossbred ewes with Arabian fat-tailed rams for intensive lamb production

1996 ◽  
Vol 36 (1) ◽  
pp. 31
Author(s):  
RC Malik ◽  
MA Razzaque ◽  
S Abbas ◽  
T Al-Mutawa ◽  
N Al-Khozam
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Reproductive Performance ◽  
Average Daily Gain ◽  
Survival Rates ◽  
Intensive Management ◽  
Season Of Birth ◽  
Genetic Groups ◽  
Sources Of Variation ◽  
Daily Gain

The reproductive performance under intensive management of Border Leicester x Merino (BLM), Dorset x Merino (DM), and Suffolk x Merino (SM) ewes imported from Australia, and local fat-tailed Naeemi (N) ewes mated to N rams was studied. Progeny performance for birth and weaning weights, average daily gain (ADG) and preweaning survival was also evaluated. BLM ewes showed the highest reproductive performance. They produced and weaned (at 8 weeks) significantly more lambs (P<0.05) than any of the other ewe genotypes. The reproductive performance of the BLM, N, DM and SM ewes, mated twice, 8 months apart, was 127, 85, 91 and 85 respectively for percentage of lambs born to ewes joined, 109, 72, 77 and 70 respectively for percentage of lambs weaned to ewes joined, and 17.8, 13.5, 12.1 and 11.6 kg respectively of lamb weaned per ewe joined over the period of 13 months from the first joining until last lambs weaned. The effect of season on ewe reproduction was significant. Birth weight was not influenced by genotype or season but did change significantly with litter size. Genetic group, litter size, season of birth and birth weight were significant sources of variation in the ADG and weaning weight of the lamb. N x BLM lambs were weaned at significantly heavier weights than lambs of the remaining 3 groups. Season of birth and birth weight also significantly affected preweaning lamb survival. About 86% of the lambs born alive were weaned with little difference between genetic groups in survival rates.

scholarly journals Niğde İlinde Yetiştirilen Akkaraman Irkı Koyunların Bazı Döl Verim Özellikleri ve Kuzuların Büyüme Performansı

2019 ◽  
Vol 7 (10) ◽  
pp. 1509
Author(s):  
Ayhan Ceyhan ◽  
Ahmet Şekeroğlu ◽  
Mustafa Duman
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Growth Performance ◽  
Litter Size ◽  
Growth Characteristics ◽  
Improvement Project ◽  
Average Litter Size ◽  
Age And Sex ◽  
Birth Type ◽  
Lambing Rate

In this study, growth performance of Akkaraman lambs and some fertility parameters of Akkaraman sheep raised in semi extensive farm conditions were investigated. A total of 6300 heads Akkaraman ewes (6000 ewes and 300 rams) housed in 34 farms located in central villages of Niğde province were evaluated between 2012 and 2016. The data of birth weight of 30161 lambs, body weight of 29517 lambs aged 90 days old and some fertility parameters of 30000 heads ewes were used. The average lambing rate of ewes was found 90.1%. The twining rate of ewes was 20.8%; the average litter size was 1.12 lambs. Birth weights of Akkaraman sheep lambs was 4.23 kg, average 90th day live weights were 23.05 kg. Effects of year, birth type, dam age, and sex were found statistically significant on birth and 90-day live weights of the Akkaraman lambs. As a result, it was concluded that the fertility of Akkaraman sheep and growth characteristics of lambs raised by public under semi-extensive conditions could be improved and the economic situation of sheep farms could be better by the implementation such improvement project.

Compensatory feeding during early gestation for sows with a high weight loss after a summer lactation increased piglet birth weight but reduced litter size

2021 ◽  
Author(s):  
Fan Liu ◽  
Casie J Braden ◽  
Robert J Smits ◽  
Jessica R Craig ◽  
David J Henman ◽  
...  
Keyword(s):  
Growth Rate ◽  
Weight Loss ◽  
Birth Weight ◽  
Low Birth Weight ◽  
Growth Performance ◽  
Litter Size ◽  
High Weight ◽  
Mitigation Strategies ◽  
Early Gestation ◽  
Compensatory Feeding

Abstract Sows mated in summer produce a greater proportion of born-light piglets (&lt;1.1 kg) which contributes to increased carcass fatness in the progeny population. The reasons for the low birth weight of these piglets remain unclear, and there have been few successful mitigation strategies identified. We hypothesized that: (1) the low birth weight of progeny born to sows mated in summer may be associated with weight loss during the previous summer lactation; and (2) increasing early gestation feed allowance for the sows with high lactational weight loss in summer can help weight recovery and improve progeny birth weight. Sows were classified as having either low (av. 1%) or high (av. 7%) lactational weight loss in their summer lactation. All the sows with low lactational weight loss (LLStd) and half of the sows with high lactational weight loss received a standard gestation feeding regime (HLStd) (2.6 kg/d; d 0-30 gestation), whereas the rest of the sows with high lactational weight loss received a compensatory feed allowance (HLComp) (3.5 kg/d; d 0-30 gestation). A comparison of LLStd (n=75) vs HLStd sows (n=78) showed that this magnitude of weight loss over summer lactation did not affect the average piglet or litter birth weight, but such results may be influenced by the higher litter size (P = 0.032) observed in LLStd sows. A comparison of HLStd vs HLComp (n=81) sows showed that the compensatory feeding increased (P = 0.021) weight gain of gestating sows by 6 kg, increased (P = 0.009) average piglet birth weight by 0.11 kg, tended to reduce (P = 0.054) the percentage of born-light piglets from 23.5% to 17.1% but reduced the litter size by 1.4 (P = 0.014). A sub-group of progeny stratified as born-light (0.8-1.1 kg) or -normal (1.3-1.7 kg) from each sow treatment were monitored for growth performance from weaning until 100 kg weight. The growth performance and carcass backfat of progeny were not affected by sow treatments. Born-light progeny had lower feed intake, lower growth rate, higher G:F, and higher carcass backfat than born-normal progeny (all P &lt; 0.05). In summary, compensatory feeding from d 0-30 gestation in the sows with high weight loss during summer lactation reduced the percentage of born-light progeny at the cost of a lower litter size, which should improve growth rate and carcass leanness in the progeny population born to sows with high lactational weight loss.

scholarly journals THE EFFECT OF DIFFERENT LEVELS OF DRY SEASON SUPPLEMENTARY FEEDING ON THE REPRODUCTIVE PERFORMANCE OF YANKASA SHEEP IN A TWICE-YEARLY LAMBING PROGRAMME

2021 ◽  
Vol 14 ◽  
pp. 41-49
Author(s):  
O. A. Osinowo ◽  
M. S. Doma ◽  
N. Pathiraja ◽  
V. Buvanendran
Keyword(s):  
Birth Weight ◽  
Litter Size ◽  
Reproductive Performance ◽  
Post Partum ◽  
Dry Season ◽  
Supplementary Feeding ◽  
Northern Nigeria ◽  
Consistent Increase ◽  
Different Levels

Ninety-four pregnant Yankasa ewes were divided into 3 groups and fed;(1) 0, (2) 200 or (3) 400 g/head/day of a concentrate supplement in addition to 6 h grazing daily, from 35.9±2.0 days before, to 98. 122.0 days after lambing in the dry season between 2 Jan vary and 15 May 1984 in Zaria, Northern Nigeria. There were no significant differences (P>0.05) bet den groups in litter size and adjusted birth weight in the initial lambing 35.9±2.0 days into the experiment although the latter showed consistent increase with level of supplementation. Adjusted 90-day Weaning weights increased significantly (P<0.05) with each increase in level of supplementation: 5:5, 7.1 and 8.6kg for groups 1, 2 and 3 respectively. Correspondingly, the percentage of lambs weaned increased (48.6, 56.4 and 90.7%) while ewe mortality declined (12.9, 10.0 and 3.0%) with increasing level of supplementation, The percentage of ewes exhibiting oestrus within 98.1±2.0 days postpartum increased with level of supplementation: 77,8,91.3 and 96.8% for groups 1, 2 and 3 respectively. However, of the ewes showing oestrus, there were no significant differences between groups in post-partum intervals to oestrus and conception. Litter size from matings during the experiment showed non-significant increase with level of supplementation. It is concluded that dry season supplementary feeding is essential for optimum reproductive performance of Yankasa sheep in a twice-yearly lambing programme. 

scholarly journals Effects of body condition on the reproductive performance of Red Sokoto goats.

2021 ◽  
Vol 32 (1) ◽  
pp. 1-6
Author(s):  
B. B. A. Taiwo ◽  
V. Buvanendran ◽  
I. F. Adu
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Litter Size ◽  
Body Condition ◽  
Reproductive Performance ◽  
The Body ◽  
Before And After ◽  
Condition Score ◽  
Red Sokoto Goat

Effects of the body condition on the litter size, birth weight and kids survival of Red Sokoto goat were examined using seventy eight does aged 1-3 years. The does were flushed by grazing on cultivated pastures in the morning, and when indoor, they were served 500gm of concentrate ration per head per day. Their body conditions were assessed. All does used in this study fell within the body condition 1 with a mean body weight of 20.7kg and the body condition 2 with a mean weight of 24.1kg on a condition scale where 1 is poor and 2 is fair. They were randomly assigned to six sire groups and making lasted ten weeks. All does were reared as a group before and after parturition until the kids were weaned at 12 weeks. Does on condition score 2 significantly higher litter size (1.74) reared more kids to weaning (0.68) and were superior to does on condition score 1in overall productivity measured as number of kids weaned (89.21 vs 45.85%) or weight of kids weaned per doe kidding (4.92 vs 2.40kg). Does on the condition score 2 were twice condition score 1. The large difference in productivity would seem to justify investments in nutrition to breeding does prior to mating

Comparison of one-quarter Chinese Meishan and three-breed conventional cross females for sow productivity, and growth and carcass characteristics of the progeny

2000 ◽  
Vol 80 (2) ◽  
pp. 281-286 ◽  
Author(s):  
B. F. Wolter ◽  
D. N. Hamilton ◽  
M. Ellis
Keyword(s):  
Birth Weight ◽  
Growth Performance ◽  
Reproductive Performance ◽  
Carcass Characteristics ◽  
The Other ◽  
Reproductive Efficiency ◽  
Gestation Length ◽  
Female Line ◽  
Female Genotype ◽  
Eye Depth

The reproductive performance over five parities of two one-quarter Meishan female genotypes were compared with a three-breed cross female genotype based on conventional breeds of pigs. Hampshire-sired progeny from these females were evaluated for growth performance and carcass measures. The female genotypes evaluated were Landrace × (Meishan × Yorkshire) (LMeY) (n = 45), Duroc × (Meishan × Yorkshire) (DMeY) (n = 41), and Landrace × (Duroc × Yorkshire) (LDY) (n = 50), respectively. LMeY had a greater number of pigs born alive (11.1, 10.6, and 10.2, SE = 0.24 for LMeY, DMeY, and LDY, respectively, P < 0.05) and a higher total litter birth weight (20.02, 18.16, and 17.29, SE = 0.383 kg for LMeY, DMeY, and LDY, respectively, P < 0.001) than the other lines. Gestation length was reduced for the two Meishan-cross genotypes (114.5, 114.3, and 114.9, SE = 0.18, for LMeY, DMeY and LDY, respectively; P < 0.001). A shorter farrowing interval was observed for the LMeY (147.1, 148.6 and 151.4, SE = 1.32 for LMeY, DMeY and LDY, respectively, P < 0.05). Number of pigs weaned per litter was highest for LMeY line (10.7, 10.0, and 9.4, SE = 0.22 for LMeY, DMeY and LDY, respectively; P < 0.05). No differences (P > 0.05) were observed between the Hampshire-sired progeny of the three dam genotypes for growth performance, backfat thickness and loin eye depth at 114 kg. These results indicate that the development of a female line with one-quarter Meishan may result in improved reproductive efficiency compared to female lines based on western breeds. Key words: Pigs, crossbred, Meishan, reproductive performance, growth performance

scholarly journals Productive and reproductive performance of Saanen goat at AZZahra farm of Sandakan in Malaysia

2018 ◽  
Vol 47 (1) ◽  
pp. 1-12 ◽  
Author(s):  
MAMY Khandoker ◽  
N Afini ◽  
A Azwan
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Litter Size ◽  
Reproductive Performance ◽  
Dairy Goat ◽  
Gestation Length ◽  
Estrus Cycle ◽  
Average Birth Weight ◽  
Saanen Goat ◽  
Age At Puberty

An experiment was conducted at AZ-Zahra Farm, Sandakan, Sabah, Malaysia to investigate the productive and reproductive performance of Saanen dairy goat. Body weight at different ages were collected once while birth weight was collected when does gave birth. On the other hand, milk production of each individual per day was received continuously for three months. The data on reproductive parameters such as length of estrus cycle, duration of estrus period, age at puberty, gestation length, age at first kidding, litter size, birth weight and kid mortality were noted. Descriptive statistics such as number, percentage, mean, standard deviation were performed. T-test was also conducted to know the statistical difference between the groups. Result demonstrated that body weight increases significantly (p<0.01) with the advancement of the age. The highest daily milk yield was found in 2-3 years of age. Dam with multiple kids produced more milk than dam with single kid. Estrus cycle of Saanen goats was found 21 days, the average estrus period duration was 2.75 days, age at puberty was 8.33 months, first kidding age was 14.2 months and gestation period was 150 days on an average. With the increase of the age of dam litter size increased. Meanwhile average birth weight increased as age of dam increased from 2.85 kg in 1 year to 3.26 kg in 3 years. Male kids born heavier than females (3.23±0.62 vs. 2.75±0.58 kg) and single kids were heavier than twin kids (3.07±0.66 kgvs2.70±0.28 kg). Low mortality rate of kids was recorded in this study (6.4%). It can be concluded that the overall productive and reproductive performances of Saanen goat at AZ-Zahra farm were within the acceptable level and the variation recorded in different parameters is very much usual. Bang. J. Anim. Sci. 2018. 47 (1): 1-12

scholarly journals A comparative study on reproductive performance and productivity of the Black Bengal and Crossbred goat at Atrai, Bangladesh

1970 ◽  
Vol 26 ◽  
pp. 55-57 ◽  
Author(s):  
Mohammad Mahmudul Hassan ◽  
SM Niaz Mahmud ◽  
SKM Azizul Islam ◽  
Omar Faruk Miazi
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Birth Weight ◽  
Litter Size ◽  
Milk Yield ◽  
Reproductive Performance ◽  
Body Weight Gain ◽  
The Other ◽  
Other Hand ◽  
Black Bengal Goat

The present investigation was carried out to detect the status of different productive and reproductive parameters of Black Bengal and Crossbred goats at Bandaikhara village under Atrai Upazilla of Naogaon district during the period of September to December/2005. The average age at first sign of heat of Black Bengal goats was better than that of Crossbred goats. In Black Bengal goat the average age at first kidding was 360.5±10 days, whereas, in crossbred goats it was 411.5±15.5 day. Significantly (P<0.01) lower the post partum heat period in Black Bengal goat than the crossbred goat. The average kidding interval in Black Bengal and Crossbred goats were 179±20 and 270±22 days respectively and differences are statistically significant (P<0.01). The usual numbers of kids at one time in Black Bengal goats vary from single to quadruplet. On the other hand, litter size of crossbred goat was single or twin. The average birth weight of Black Bengal goat was lower than Crossbred goats, which are statistically significant (P<0.05). The average body weight gain after 365 days is better in Crossbred than Black Bengal goats and statistically significant (P<0.01). The average milk yield in Crossbred goat was 1.05 liter/day, whereas, in Black Bengal goat, it produces milk that only nourished its kids. It was concluded that the reproductive performance like early maturity, larger litter size, shorter postpartum period, minimum kidding interval are better in Black Bengal goat. On the other hand productive performance like higher birth weight, maximum body weight gain, high milk yield, longer lactation length are suitable in crossbred goat. Key words: Black Bengal goat, Crossbred goat, Production, Reproduction, Performance Univ. j. zool. Rajshahi Univ. Vol. 26, 2007. pp. 55-57

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