scholarly journals Effects of breeds and seaon on semen quality and fertility pf bucks in a humid tropical environment.

2021 ◽  
Vol 32 (2) ◽  
pp. 327-341
Author(s):  
N. Nwoko ◽  
S. N. Ibe

A breeding programme, which spanned over four seasons (early dry, late dry, and early rainy, late rainy), was carried with one west African Dwarf (WAD) buck, one red sokoto (RS) buck, eight WAD does and eight RS does. The buck were subjected electrical stimulation wiht an electrd-ejaculator and their semen collected and analysed.Fertility rate was significant (P<0.05) higher in WAD than in RS in early dry season. There was no significant eason effect (P,0.05). of season on fertility of WAD. Fertility was least in the early dry season in RS and the difference from other season was significant (P,0.05). The effect of season on both semen volume and concentration was significant (P,0.05). There was a progressive increase in both parameter from early dry season to late rainy season. However, RS showed superiorityover WAD in both parameters in all the seasons. There were no significant effects of breeds or season on allother parameters studied. The indication is that both breeds could be used for all-year-round breeding with adequate feeding in the zone. However, for purpose of artificial insemination, RS bucks, which produce larger quatities of semen with higher concentration, should be preferred.

2021 ◽  
Vol 902 (1) ◽  
pp. 012008
Author(s):  
M H Prasetyowati ◽  
L A Pradista ◽  
N Widyas ◽  
S Prastowo

Abstract This study aims to estimate the Most Probable Producing Ability (MPPA) values of semen quality in five Bali cattle bull that collected from January to October 2016 at Singosari AI Center. The semen quality parameter consists of semen volume (ml), motility (%), concentration (x106), and total sperm (x106/ml) observed in rainy and dry season. Data were analyzed using intraclass correlation to estimate the repeatability and MPPA values. The average of semen quality in rainy and dry seasons, respectively, in volume were 3.91-6.24 ml and 4.38-6.84 ml, motility was 46.31-70.00% and 48.26-70.45%, semen concentrations were 844.78-1059.02 × 106/ml and 1033.15-1260.16 × 106/ml, and total sperm were 3280.58-5964.50 × 106 and 4493.31-7206.96×106. In this study, dry season shows better semen quality parameter as well as the repeatability value, therefore the estimation of MPPA in dry season is more accurate compared to rainy season.


The objective of this study was to determine the effect of season and age on semen quality (individual motility, mass motility, concentration, volume, pre-freeze motility, and post-thaw motility) of Limousin Bull under the tropical condition in Indonesian artificial insemination center. This study used a large data set recorded over eight years (2011 until 2018) of production period (n = 6758 ejaculates, n = 19 bulls) retrieved from Singosari National Artificial Insemination Center. Rainfall and other climatic data were collected from Malang Meteorological, Climatology, and Geophysics Agency, Indonesia. Seasonal effect was grouped into three groups, i.e. rainy season (total rainfall per month >200mm), humid season (total rainfall per month = 100-200 mm), and dry season (total rainfall per month <100). Bull age is grouped into seven groups (2, 3, 4, 5, 6, 7 and 8). Data were analyzed using Mixed Model procedure classifying effect of season and age on fixed effect and bull as a random effect. Season had a highly significant effect on individual motility, pre-freeze motility, and post-thaw motility (P<0.001), and did not have a significant effect on concentration, volume, pH, and mass motility. Individual motility, pre-freeze motility, and post-thaw motility were highest in the rainy season and declined in the dry season. Bull age had a highly significant effect on individual motility, concentration, volume, pre-freeze motility, and post-thaw motility (P<0,001). Bull age did not have a significant effect on mass motility and pH. Two- and three-years old bulls have superior individual motility and concentration. However, it is decreasing at age three until eight years old. The lowest volume was at age two and increased gradually until age eight. Meanwhile, pre-freeze motility and post-thaw motility increased at two to five years old and then declined until eight years old.


2021 ◽  
Vol 9 (4) ◽  
pp. 601
Author(s):  
Desti April Yanti ◽  
Agus Hudoyo ◽  
Achdiansyah Sulaiman

Rice is the staple food of Indonesian people. In 2014, its production was less than its need including its losses. Therefore, during 2015-2020, in order to increase the production through increasing its yield and its cropping intensity, the Ministry of Agriculture had been implementing the program of Upaya Khusus, called Upsus. The Upsus could be success if the farmers who participated in this program spent less the rice standard cost and obtained bigger profit. The question was whether the Upsus could increase yield, decrease standard cost and increase profit. Accordingly, the objective of this study was to answer this question. There were 30 respondents chosen by the simple random sampling method from six villages of three subdistricts. Each respondent was interviewed his farming budget in four seasons, i.e. rainy season 2014/2015, dry season 2015, rainy season 2017/2018, and dry season 2018. Consequently, the number of observation was 120. The data farming budget were used for getting the three following variables, i.e. yield (ton/ha), production standard cost (Rp/kg), and profit (Rp million/ha). The data were analyzed by using three multiple regression models. This study revealed that the Upsus was statistically significant on increasing its yield, decreasing its standard cost and increasing its profit. By implementing the Upsus, the increment in yield and profit of rice farming were 3 percent and 30 percent, respectively. The decrease in standard cost was 6 percent. The average yield, the standard cost and the profit of rice farming in Upsus were as follows 5,20 ton/ha, Rp4.154,-/kg and Rp6,82 million/haKeywords: profit, standard cost, upsus, yield


2021 ◽  
Vol 888 (1) ◽  
pp. 012022
Author(s):  
N Isnaini ◽  
A A Hakim ◽  
D Amertaningtyas ◽  
H E Sulistyo ◽  
A Irsyammawati ◽  
...  

Abstract This study compared the semen quality traits between Etawah grade (EGB) and Senduro bucks (SB) raised in Singosari National Artificial Insemination Center, Indonesia. A total of 96 ejaculated semen were collected from three EGB and three SB with an average age of three years. The ejaculates were evaluated for semen volume (SV), spermatozoa concentration (SC), total spermatozoa (TS), spermatozoa motility (SM), post-thawing spermatozoa motility (PTSM), the recovery rate of spermatozoa motility (RRSM), and frozen semen production (FSP). Data of SV, SM, PTSM, and RRSM were compared using the Mann-Whitney U test. While the data of SC, TS, and FSP were analyzed using an independent t-test. The results showed that SV, SM, PTSM, and RRSM were not significantly differed (P>0.05) between breeds. Whereas, SC, TS, and FSP of EGB were significantly higher (P<0.05) than SB. Therefore, it can be concluded that Etawah grade bucks can produce higher total spermatozoa and as a result higher frozen semen production for artificial insemination as compared to Senduro bucks.


2019 ◽  
Vol 40 (5) ◽  
pp. 1775
Author(s):  
Ruy Guilherme Correia ◽  
Francisco de Assis Oliveira ◽  
Leandro Silva de Souza ◽  
Raphael Lobato Prado Neves ◽  
Jéssy Anni Vilhena Senado ◽  
...  

Few research on the entomofauna associated to forest plantations with Swietenia macrophylla (King) in Brazil has been reported. The aim of this study was to analyze the Coleoptera communities in forest ecosystems with S. macrophylla, Brazilian mahogany, with emphasis on the diversity of families and the main functional groups. The insects were collected through pitfall traps in three forest ecosystems: monoculture, consortium and forest enriched with Brazilian mahogany, during dry and rainy periods in two consecutive years. The identification of the captured insects occurred in the entomology laboratory of the Federal Rural University of Amazonia. The analysis was performed through Past Paleontological Statistic 3.14 and ANAFAU, where the difference was considered significant only when p ? 0.05. 11,358 specimens from 21 families were captured, of which 8,058 were sampled in the rainy season and 3,299 in the dry season. There was influence of seasonality and types of forest ecosystems during collection. The families Nitidulidae, Staphylinidae, Carabidae and Meloidae presented greater abundance and richness in the complex ecosystems. Anobiidae, Cerambycidae, Bostrichidae, Brentidae, Buprestidae, Curculionidae, Elateridae, Chrysomelidae and Lagriidae were considered to be pests and common to all studied ecosystems; however, the families Nitidulidae, Scarabaeidae, Tenebrionidae and Passalidae had the function of decomposers; Carabidae, Coccinellidae, Histeridae, Meloidae, Staphylinidae, Cantharidae and Hydrophilidae were the predators.


2019 ◽  
Vol 1 (1) ◽  
pp. 56-67
Author(s):  
Irwansyah Nasution ◽  
Tumpal H.S. Siregar ◽  
Erwin Pane

This study examines the relationship of Climate Variables with Rubber Yield And Farmer Income In Three Subdistricts of Padang Lawas Utara.  This study aims to (1) to determine the effect of climate variable to rubber yield and, (2) To know the difference of farmer's income in rainy season and dry season. This research was conducted in March until May 2017. The result of research is climatic variable especially rainfall and rainy day very significant for influential  rubber yields in Three Subdistricts in Padang Lawas Utara. This may indicate that increasing rainfall amounts with higher rainy days cause a decrease in tapping days resulting in reduction of rubber productivity. There results also showed that farmers' income in rainy season difference in dry season whereas farmer income in dry season is higher than rainy season


Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 485
Author(s):  
Megan Wilson ◽  
Jess Williams ◽  
V. Tamara Montrose ◽  
Jane Williams

Most stallions within breeding programmes are expected to breed and compete concurrently. The exercising of stallions with regards to training regimes during the breeding season is a controversial subject. Daily exercise at low intensities is important for the mental and reproductive well-being of the stallion, however higher intensities of exercise, as seen in competing stallions, may have detrimental effects on seminal quality. To calculate if competition does affect semen quality, this study investigated the effect that equestrian discipline and timing of competition had on a range of stallion semen characteristics. This was a retrospective study that evaluated the seminal data of 1130 stallion semen collections from two UK based stud farms between 2009 and 2016. Competing stallion semen quality was significantly lower with regards to concentration (p < 0.05) and progressive motility (p < 0.05) than non-competing stallions. Semen volume was higher in competing stallions (p < 0.05) than non-competing stallions. There was a significant difference in seminal attributes among disciplines and competition levels (p < 0.05). The difference in semen quality among competing and non-competing stallions, as well as the difference among disciplines suggests endocrinological and physiological changes occur in relation to training intensity and competition.


2012 ◽  
Vol 49 (1) ◽  
pp. 31-42 ◽  
Author(s):  
K. ACHEAMPONG ◽  
P. HADLEY ◽  
A. J. DAYMOND

SUMMARYThe physiological performance of four cacao clones was examined under three artificial shade regimes over the course of a year in Ghana. Plants under light shade had significantly higher photosynthetic rates in the rainy seasons whereas in the dry season there was a trend of higher photosynthetic rates under heavy shade. The results imply that during the wet seasons light was the main limiting factor to photosynthesis whereas in the dry season vapour pressure deficit was the major factor limiting photosynthesis through stomatal regulation. Leaf area was generally lower under heavier shade but the difference between shade treatments varied between clones. Such differences in leaf area allocation appeared to underlie genotypic differences in final biomass production in response to shade. The results suggest that shade for young cacao should be provided based on the current ambient environment and genotype.


2019 ◽  
Vol 4 (1) ◽  
pp. 59
Author(s):  
Icha Musywirah Hamka ◽  
Hamka Naping

This article aims to describe how the economic culture of fishing communities in the area of Lake Tempe, Wajo Regency, South Sulawesi, in the face of tough times in two seasons. The existence of Lake Tempe made a lot of people who lived around him rely and making the Lake as a place to look for earnings. Its unique characteristics make Lake Tempe utilized in different ways in accordance with the seasons. It makes the community experience different issues between rainy season and dry season. This research used qualitative methods to get the depiction as a whole on the question of research. The results showed that the activity of fishing communities is changing depending on the season. It has resulted in the community get to know two of the famine, with different problems. The difference of the season brings socio-economic conditions of the difference is then also bring the community on different adaptation patterns. In the rainy season, people are faced with the problem of floods, and in the dry season, people should experience times of economic hardship. For that matter, any other uses different patterns. The rainy season, they adapt by designing the House in accordance with the conditions of the flood. They made rakkeang, bale-bale, Pallangga and patto'do. In the dry season, they overcame economic hardship by switching professions to become farmers, builders, and other informal sector jobs.


2020 ◽  
Vol 45 (4) ◽  
pp. 261-267
Author(s):  
S. Suyadi ◽  
B. Purwantara ◽  
A. Furqon ◽  
W. A. Septian ◽  
I. Novianti ◽  
...  

Ongole Grade cattle is one of local cattle in Indonesia.This study was aimed to analyze the effect of bull age and season on semen quality of Ongole Grade cattles macroscopically (sperm motility, and sperm concentration) and microscopically (semen ejaculate volume) to support the policy and management on improvement of semen production. Data were collected from 533 ejaculates of 10 bulls aged 3, 4, and 5 yr at Singosari National Artificial Insemination Center(SNAIC). The 4-year-old bulls hadhighestsperm motiliy and semen ejaculate volume. The lowest ejaculate volume was reported in Ongole Gradecattlesaged 3 yr. Sperm motility and concentrationweresignificantly higher (P<0.01) in wet season than dry season. In conclusion, the bull age and season should be considered by Singosari National Artificial Insemination Centerwhen collecting the semen, especially on bulls aged 3 yr old and in dry season.


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