scholarly journals Effect of Goji Berry (Lycium barbarum) Supplementation on Reproductive Performance of Rabbit Does

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1672
Author(s):  
Egon Andoni ◽  
Giulio Curone ◽  
Stella Agradi ◽  
Olimpia Barbato ◽  
Laura Menchetti ◽  
...  
Keyword(s):  
Milk Production ◽  
Reproductive Performance ◽  
Dietary Treatment ◽  
Productive Performance ◽  
Lycium Barbarum ◽  
Significant Interaction Effect ◽  
Commercial Diet ◽  
Goji Berry ◽  
Wide Range ◽  
Marginal Means

Goji berry shows a wide range of beneficial properties in human health, but only a few studies evaluated its effects in livestock animals. The objective of this research was to assess the effects of goji berry supplementation on the hormonal profile, productive, and reproductive performance of does. Two months before artificial insemination, 105 nulliparous does were randomly divided into three groups (n = 35) based on the dietary treatment: commercial diet (C), or a diet supplemented with either 1% (G1), or 3% (G3) of goji berry, respectively. The results showed that receptivity was higher in G1 than in the C group (p < 0.05). Trends toward significance for differences between the G1 and G3 groups in marginal means of LH concentrations (p = 0.059), and between G1 and C in LH AUC values (p = 0.078), were evidenced. Estrogen concentrations showed a more fluctuating trend but a significant interaction effect (p < 0.001). The G1 group showed higher litter weight than C at birth (p = 0.008) and weaning (p < 0.001), as well as higher litter size at weaning (p = 0.020). The G1 group also exhibited the highest mean milk production (p < 0.01). In conclusion, goji berry influenced reproductive and productive performance, probably via modulating hormonal patterns and milk production in rabbits. However, further studies are needed to validate these preliminary results.

Single female offspring born to primiparous ewe-lambs are lighter than those born to adult multiparous ewes but their reproduction and milk production are unaffected

2012 ◽  
Vol 52 (7) ◽  
pp. 552 ◽  
Author(s):  
M. F. P. Loureiro ◽  
S. J. Pain ◽  
P. R. Kenyon ◽  
S. W. Peterson ◽  
H. T. Blair
Keyword(s):  
Milk Production ◽  
Reproductive Performance ◽  
Crude Protein ◽  
Female Offspring ◽  
Productive Performance ◽  
Single Female ◽  
Ewe Lambs ◽  
Ewe Lamb ◽  
Generation Offspring

Little is known about the long-term impacts of selecting progeny born to ewe-lambs (EL) as replacements. This study investigated whether being born to a ewe-lamb affected the liveweight, milk production and reproductive performance of the offspring to 3 years of age in comparison with those born to adult multiparous ewes. Twenty-seven and 28 single-born Romney ewe progeny (G1) were born to either EL or to adult ewes (AE), respectively. Offspring born to ewe-lambs (ELG1) were lighter (P < 0.001) at birth and up to 12 months of age compared with offspring born to adult ewes (AEG1). Reproductive performance of AEG1 and ELG1 did not differ in regards to puberty attainment, pregnancy rate and number of fetuses. First lactation milk production, fat, crude protein, total protein, casein, lactose and total solids yield did not differ (P > 0.05). The second generation offspring born to ELG1 and AEG1 did not differ in birthweight in the first parity, but it did differ in the second parity and those lambs born to ELG1 were heavier from birth to weaning compared with those lambs born to AEG1. Combined, these results indicate, in the animals used in our study that productive performance of ewes born to EL does not differ to 3 years of age to that of ewes born to AE.

COMPARATIVE PRODUCTIVITY OF COWS AFTER RECEIVING TWO EMBRYOS AT TRANSFER

1986 ◽  
Vol 66 (2) ◽  
pp. 373-380 ◽  
Author(s):  
J. P. REID ◽  
J. W. WILTON ◽  
J. S. WALTON
Keyword(s):  
Key Words ◽  
Milk Production ◽  
Milk Yield ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Total Mass ◽  
Uterine Horn ◽  
Wide Range ◽  
Calf Mortality ◽  
Mature Weight

Embryos were transferred surgically to each uterine horn of 31 recipient cows. Fourteen (45%) became pregnant. Nine of the pregnant recipients calved twins for a rate of 64% twins per pregnancy. Embryos were obtained from nine donors by nonsurgical flushing, with the resulting single and twin calves offspring of six of these. Donors were crossbreds of varying percentage of Charolais, Chianina, Maine Anjou, Simmental and Holstein; service sires were Charolais, Limousin or Maine Anjou and the calves were therefore 2-, 3- or 4-way crosses. Recipients included a wide range of crosses of breeds, varying in milk yield and mature weight. In addition to the twins produced by transfer, an additional six sets of twins were born during the same period to cows bred by artificial insemination (AI). Single and twin calves produced by AI service were sired by bulls of breeds similar in mature weight to that of the dam. At calving, 79% of the twinning cows required assistance compared to 29% of the single bearing cows. The most common problem observed for cows bearing twins was presentation of both calves at the same time, although this problem was easily corrected in all cases. Calf mortality was low and not significantly different between twin- and single-bearing dams. Days to first ovulation were similar for twin and single nursing cows, 39 and 34 d postpartum, respectively. Transfer twin calves were 16.6 kg lighter at birth and gained weight at a significantly slower rate (249 g d−1) from birth to weaning than transfer calves born as single. Milk production of transfer twin-bearing dams as measured by average machine yield at 5, 12 and 20 wk of lactation was significantly greater (340 kg 200 d−1) than for dams bearing a single transfer calf. Total mass of weaned calf per cow was 151 kg greater for dams with transfer twins than those with transfer singles and 165 kg greater for AI dams with twins than AI dams with singles. Within the transfer twin group, milk yield of dam significantly influenced total weight of calf produced (0.02 kg kg−1 milk) while weight of dam did not. Key words: Embryo transfer, beef, twins, recipients, milk yield, reproductive performance

ПРЕРЫВИСТОЕ ОСВЕЩЕНИЕ ПОВЫШАЕТ ЭФФЕКТИВНОСТЬ ИСКУССТВЕННОГО ОСЕМЕНЕНИЯ КУР В КЛЕТКАХ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Egg Production ◽  
Laying Hens ◽  
Electric Energy ◽  
Productive Performance ◽  
Feed Conversion ◽  
Scientific Center ◽  
Academy Of Sciences ◽  
Egg Fertility

Intermittent Lighting Improves the Efficiency of Artificial Insemination in Cage Housed Laying Hens Kavtarashvili A.Sh., Kolokolnikova T.N. Federal Scientific Center “All-Russian Research and Technological Poultry Institute” of Russian Academy of Sciences Omsk Agrarian Scientific Center Summary: The effects of different lighting regimes on the oviposition schedule, productive performance, and reproductive efficiency in cage housed laying hens of layer parental flock (Hisex White-R) were studied; the reasonable regime of artificial insemination (AI) under intermittent lighting is proposed. It was found that intermittent lighting regime 1L:4D:4L:1D:4L:10D compared to the constant lighting significantly alters oviposition schedule: under this regime 82.3% of all daily eggs were laid until 9 am (vs. 66.6% in control). This regime and AI at 10 am improved the productive and reproductive performance compared to control (constant lighting 16L:8D and AI at 12 am): mortality by 1.9%, egg production per initial hen by 3.8%, egg weight by 1.1%, percentage of eggs suitable for incubation by 1.9%, egg fertility by 0.9%, hatchability by 2.3%, hatch of chicks by 2.9%, feed conversion ratio (kg of feed per 10 eggs) by 5.3%, the expenses of electric energy for lighting (per 1000 eggs suitable for incubation) by 54.5%. Key words: INTERMITTENT LIGHTING, CAGE HOUSED LAYERS, ARTIFICIAL INSEMINATION (AI), OVIPOSITION SCHEDULE, AI TIMING, PRODUCTIVE PERFORMANCE, REPRODUCTIVE PERFORMANCE

scholarly journals Influence of Genetic Selection for Growth and Broodstock Diet n-3 LC-PUFA Levels on Reproductive Performance of Gilthead Seabream, Sparus aurata

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 519
Author(s):  
Shajahan Ferosekhan ◽  
Serhat Turkmen ◽  
Cathaysa Pérez-García ◽  
Hanlin Xu ◽  
Ana Gómez ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Sparus Aurata ◽  
Genetic Selection ◽  
Growth Trait ◽  
High Growth ◽  
Gilthead Seabream ◽  
Commercial Diet ◽  
Selection For ◽  
Broodstock Diet

Genetic selection in gilthead seabream (GSB), Sparus aurata, has been undertaken to improve the growth, feed efficiency, fillet quality, skeletal deformities and disease resistance, but no study is available to delineate the effect of genetic selection for growth trait on GSB reproductive performance under mass spawning condition. In this study, high growth (HG) or low growth (LG) GSB broodstock were selected to evaluate the sex steroid hormones, sperm, egg quality and reproductive performance under different feeding regime of commercial diet or experimental broodstock diet containing either fish oil (FO) or vegetable oil (VO) based diet. Under commercial diet feeding phase, broodstock selected for either high growth or low growth did not show any significant changes in the egg production per kg female whereas egg viability percentage was positively (p = 0.014) improved by the high growth trait broodstock group. The experimental diet feeding results revealed that both growth trait and dietary fatty acid composition influenced the reproductive performance of GSB broodstock. In the experimental diet feeding phase, we observed high growth trait GSB males produced a higher number of sperm cells (p < 0.001) and also showed a higher sperm motility (p = 0.048) percentage. The viable egg and larval production per spawn per kg female were significantly improved by the broodstock selected for high growth trait and fed with fish oil-based diet. This present study results signifies that gilthead seabream broodstock selected on growth trait could have positive role in improvement of sperm and egg quality to produce viable progeny.

scholarly journals Reproductive performance and milk production of Central Highland and Boer x Central Highland goats

Heliyon ◽  
2020 ◽  
Vol 6 (12) ◽  
pp. e05836
Author(s):  
Zeleke Tesema ◽  
Kefyalew Alemayehu ◽  
Damitie Kebede ◽  
Tesfaye Getachew ◽  
Alemu Kefale ◽  
...  
Keyword(s):  
Milk Production ◽  
Reproductive Performance ◽  
Central Highland

Effect of active or passive immunization against steroids on reproductive performance of ewes in different levels of body condition at mating

1986 ◽  
Vol 43 (2) ◽  
pp. 285-292 ◽  
Author(s):  
S. M. Rhind ◽  
B. A. Morris ◽  
Jill Clayton ◽  
J. M. Doney ◽  
R. G. Gunn ◽  
...  
Keyword(s):  
Body Condition ◽  
Reproductive Performance ◽  
Body Condition Score ◽  
Passive Immunization ◽  
Treated Group ◽  
Ovulation Rate ◽  
Control Group ◽  
Absolute Increase ◽  
Wide Range ◽  
Antibody Titres

ABSTRACTBorder Leicester × Scottish Blackface (Greyface) ewes of three groups, each comprising 118 animals in a wide range of body condition scores, were mated at a synchronized oestrus in mid October. The ewes were passively immunized against testosterone (group P), actively immunized against androstenedione (group F), or not treated (group C). All ewes were slaughtered at return to service or at 35 to 45 days of pregnancy and ovulation rates and numbers of embryos present were determined. Mean ovulation rates of ewes in group P were higher than in those in group C (P < 0·05) and this difference was evident at most levels of body condition. The absolute increase in ovulation rate, compared with the control group, was similar at all condition scores. Mean ovulation rates of ewes in group F were higher than those in group C (P < 0·001) and the magnitude of the increase was greater in ewes in higher condition scores. The incidence of ova wastage was variable but differences between treatments in mean ovulation rate were generally reflected in mean litter size. The conception rates of immunized ewes were depressed compared with those of control animals, particularly in ewes with a body condition score less than 3·0 at mating. Consequently, there was no improvement in the potential lambing rate of immunized ewes following only one cycle of mating. Circulating antibody titres were not related to conception rate or body condition at mating and were related to ovulation rate only in group F ewes. It is concluded that immunization against steroids, using either passive or active techniques, can improve the reproductive performance of individual ewes but improvement in the performance of the flock as a whole may only be achieved under optimal conditions of nutrition and season.

Lycium barbarum L. (goji berry) monocropping causes microbial diversity loss and induces Fusarium spp. enrichment at distinct soil layers

2021 ◽  
Vol 168 ◽  
pp. 104107
Author(s):  
Xiaofan Na ◽  
Shaolan Ma ◽  
Caixia Ma ◽  
Ziyu Liu ◽  
Pengxin Xu ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Fusarium Spp ◽  
Lycium Barbarum ◽  
Soil Layers ◽  
Goji Berry ◽  
Diversity Loss

The effect of body reserves at farrowing on the reproductive performance of first-litter sows

1989 ◽  
Vol 48 (2) ◽  
pp. 449-457 ◽  
Author(s):  
B. P. Mullan ◽  
I. H. Williams
Keyword(s):  
Food Intake ◽  
Milk Production ◽  
Reproductive Performance ◽  
Live Weight ◽  
Low Level ◽  
Body Reserves ◽  
H 30 ◽  
Voluntary Food Intake

ABSTRACTThe level of body reserves in first-litter sows was manipulated by giving gilts one of three levels (high (H), medium (M) or low (L)) of food from selection (44 kg live weight) to parturition. The aim of this experiment was either to maintain or to mobilize these reserves during lactation (31·4 days) by feeding sows to appetite (high (H)) or 2·0 kg/day (low (L)).When the level of body reserves was increased prior to farrowing (171 kg live weight, 32 mm backfat) sows had a lower voluntary food intake during lactation than those animals that farrowed with a low level of body reserves (126 kg live weight, 20 mm backfat) (H-H v. L-H, 3·4 v. 4·9 kg/day; P < 0·001). Both groups had a normal return to oestrous activity after weaning (mean interval between weaning and mating of 14 days) but the heavier animals mobilized more of their body reserves (H-H −30·7 kg live weight, -4·3 mm backfat; L-H -3·6 kg live weight +0·9 mm backfat; P < 0·001). When food intake during lactation was restricted to 2·0 kg/day the interval between weaning and mating was increased by 50% regardless of the level of body reserves present at farrowing. For the same animals, there were insufficient body reserves to support milk production at the same level as for those animals given food t o appetite.

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