Mating system and reproductive performance in the isopod Parabopyrella lata, a parasitic castrator of the ‘peppermint’ shrimp Lysmata boggessi

2018 ◽  
Vol 165 (3) ◽  
Author(s):  
J. Antonio Baeza ◽  
Sarah Steedman ◽  
Sanjeevi Prakash ◽  
Xiaomi Liu ◽  
Jose Luis Bortolini ◽  
...  
Keyword(s):  
Mating System ◽  
Reproductive Performance ◽  
Peppermint Shrimp ◽  
Parasitic Castrator

scholarly journals Lifetime Reproductive Performance and Lifespan of SPF C3H Mice Reared under a Single Pair Mating System

1976 ◽  
Vol 25 (3) ◽  
pp. 135-140 ◽  
Author(s):  
Shizuo TOMITA ◽  
Tatsuo HAYAO ◽  
Haruyasu UCHIDA ◽  
Takuya SAWADA
Keyword(s):  
Mating System ◽  
Reproductive Performance ◽  
Single Pair ◽  
C3h Mice ◽  
Pair Mating

scholarly journals Crossbreeding Turkeys. 1. Effect of Mating System on Reproductive Performance

1961 ◽  
Vol 40 (1) ◽  
pp. 163-171 ◽  
Author(s):  
M.G. McCartney ◽  
V.D. Chamberlin
Keyword(s):  
Mating System ◽  
Reproductive Performance

scholarly journals Pengaruh Perbedaan Ketinggian Tempat Terhadap Capaian Hasil Inseminasi Buatan Pada Kambing Peranakan Ettawa

2017 ◽  
Vol 12 (1) ◽  
pp. 34
Author(s):  
Setyo Utomo
Keyword(s):  
Mating System ◽  
Key Words ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Rural Areas ◽  
Large Scale ◽  
Post Partum ◽  
Pregnant Female ◽  
Survey Method ◽  
Goat Population

<p>This study was conducted to assess the reproductive performance and achievements of AI in goat reared in lowland and highland areas. The study used a survey method in two rural areas with the highest goat population. For lowland areas selected Karangwuni village while highland areas was Sidomulyo village. The results showed that for the lowland areas vs. the highland for reproductive performance were as follows: age of first estrus (10 vs 9.3 bl), age of first mating (13.2 vs 12.5 bl),<br />mating system 100% natural, post partum mating (4.2 vs 4.6 months), S / C (1.5 vs. 1.6). Understanding of farmers about the pregnant female: anestrus post-AI (85.7 vs. 22.2%), stomach down (14.3 vs. 0.00), the condition of the udder (0.00 vs 77.8%). Achievement results of AI (37.5 vs. 40%). Based on the results of the study concluded that the reproductive performance of goat in lowland areas was generally very similar to the highland areas, thus the development of large-scale goats in the lowland areas is recommended.<br />Key words: natural mating, artificial insemination, PE goats, lowland, highland</p>

Sexual behaviour and reproductive performance of ewe lambs at and after puberty

1978 ◽  
Vol 90 (1) ◽  
pp. 83-91 ◽  
Author(s):  
T. N. Edey ◽  
R. Kilgour ◽  
Kaye Bremner
Keyword(s):  
Mating System ◽  
Success Rate ◽  
Reproductive Performance ◽  
Sexual Behaviour ◽  
Mating Behaviour ◽  
Late Pregnancy ◽  
Weak Response ◽  
Behavioural Responses ◽  
Ewe Lambs ◽  
Mating Sequence

SUMMARYObservations were made on mating behaviour and reproductive performance during the puberal period in 61 well-grown Perendale (Cheviot × Romney) ewe lambs. In four animals, the first oestrus (as indicated by raddle marks) was not accompanied by ovulation, and three other lambs, though marked by the rams, were not inseminated.The behavioural responses to a ram, of ewe lambs experiencing oestrus for the first and second times, showed many signs of inadequacy by comparison with those of mature ewes. Individual ewe lambs and mature ewes in oestrus were exposed to a ram in a pen for 3 h, and their responses were ranked on a scale of 1 (full adult response) to 5 (weak response). Of mature ewes 95% scored 1, compared with only 27% of ewe lambs. Across the lambs 59% scored 3 or more, indicating failure of some aspects of the courtship sequences which are required to sustain and reinforce the ram's interest. In a paddock-mating system many lambs showed a strong tendency to disassociate themselves from the rams after each courtship and mating sequence. Consequently there was little evidence of harem formation. Fifty-six per cent of services came in the first 2 h of oestrus, only 14% after the 6th hour and none after the 11th hour.Duration of the first oestrus in lambs was 18·4 h compared with 29·3 h in mature ewes. Mating the 61 ewe lambs over the first three cycles after puberty resulted in 38 of them being pregnant with 46 foetuses at autopsy in mid to late pregnancy. The success rate did not differ between cycles.

scholarly journals Pengaruh Perbedaan Ketinggian Tempat Terhadap Capaian Hasil Inseminasi Buatan Pada Kambing Peranakan Ettawa

2017 ◽  
Vol 12 (1) ◽  
pp. 34 ◽  
Author(s):  
Setyo Utomo
Keyword(s):  
Mating System ◽  
Key Words ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Rural Areas ◽  
Large Scale ◽  
Post Partum ◽  
Pregnant Female ◽  
Survey Method ◽  
Goat Population

<p>This study was conducted to assess the reproductive performance and achievements of AI in goat reared in lowland and highland areas. The study used a survey method in two rural areas with the highest goat population. For lowland areas selected Karangwuni village while highland areas was Sidomulyo village. The results showed that for the lowland areas vs. the highland for reproductive performance were as follows: age of first estrus (10 vs 9.3 bl), age of first mating (13.2 vs 12.5 bl),<br />mating system 100% natural, post partum mating (4.2 vs 4.6 months), S / C (1.5 vs. 1.6). Understanding of farmers about the pregnant female: anestrus post-AI (85.7 vs. 22.2%), stomach down (14.3 vs. 0.00), the condition of the udder (0.00 vs 77.8%). Achievement results of AI (37.5 vs. 40%). Based on the results of the study concluded that the reproductive performance of goat in lowland areas was generally very similar to the highland areas, thus the development of large-scale goats in the lowland areas is recommended.<br />Key words: natural mating, artificial insemination, PE goats, lowland, highland</p>

Genetic Diversity, Mating System, and Reproductive Output of Restored Melaleuca acuminata Populations are Comparable to Natural Remnant Populations

2019 ◽  
Vol 37 (4) ◽  
pp. 222-232 ◽  
Author(s):  
Melissa A Millar ◽  
Janet M Anthony ◽  
David J Coates ◽  
Margaret Byrne ◽  
Siegfried L Krauss ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mating System ◽  
Reproductive Output

РОДСТВЕННЫЕ ГРУППЫ РЕДКИХ ПОРОД ГУСЕЙ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Gene Pool

ЖАРКОВА И.П., ГРИШИНА Д. С. Федеральный научный центр «Всероссийский научно-исследовательский и технологический институт птицеводства» Российской академии наук Аннотация: Авторами изучены генетические параметры хозяйственно-полезных признаков гусей (сохранность, яйценоскость, масса яиц, оплодотворенность и выводимость яиц, вывод гусят) в зависимости от их происхождения. Новизна работы заключается в том, что впервые проведен анализ закономерностей проявления репродуктивных качеств у родственных групп гусей. При сравнительном изучении 21 породы гусей установлено, что группа пород гусей, родственных между собой по общему селекционному предку, а именно китайской серой породе (1-я родословная), имеет более высокие воспроизводительные способности по сравнению с другими породами и группами пород. Полученные данные будут применяться в дальнейшей работе с целью совершенствования приемов сохранения генофонда малочисленных пород гусей. Ключевые слова: ГЕНОФОНД ПОРОД ГУСЕЙ, РОДСТВЕННЫЕ ГРУППЫ, РЕПРОДУКТИВНЫЕ КАЧЕСТВА, GENE POOL OF GEESE BREEDS, BIOGENETICALLY RELATED GROUPS OF BREEDS, 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

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