The relationships between body weight, testicular weight, age and the scrotal circumference of goats in the semi-arid Maiduguri, Nigeria

2010 ◽  
Vol 5 (1) ◽  
Author(s):  
NK Alade ◽  
CL Ezeokoli ◽  
ID Muhammed
2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Amare Eshetu Gemeda ◽  
Kefelegn Workalemahu

The body weight and testicular and epididymal parameters of Afar, Long-eared Somali (LES), and Woyto-Guji (WG) breeds of goat were investigated. A total of 405 randomly selected bucks of Afar (n=135), Long-eared Somali (n=135), and Woyto-Guji (n=135) were included in this study. The overall mean scrotal circumference (SC), testicular volume (TV), testicular length (TL), testicular weight (TW), body weight (BW), epididymal weight (EW), body condition score, and testicular diameter (TD) measurements in all bucks were 20.8±1.94 cm, 68.1±6.18, 4.96±0.79 cm, 70.0±5.66 g, 22.1±2.98 Kg, 9.09±1.88 g, 2.55±0.68, and 4.28±0.45 cm, respectively. Significant (p<0.05) breed differences in SC, TD, TL, TW, BW, EW, and TV were recorded. Long-eared Somali (LES) breed was heaviest and Afar breed was the lightest and Woyto-Guji (WG) had the average BW. In all breeds, the parameters were positively correlated. In Afar breed, the TW had a significant correlation with BW (r=0.90) and SC (r=0.65). In LES BW was highly correlated with TD (r=0.96) and TL (r=0.96). In WG, TW was significantly correlated with TD (r=0.94), EW (r=0.90), TL (r=0.89), and BW (r=0.82). In multiple regression analysis the linear combinations of BCS, SC, and BW significantly predicted TW, TL, TV, TD, and EW in all breeds. In conclusion, Long-eared Somali breed displayed greater BW and scrotal and testicular traits.


Author(s):  
Minu Rachel Varghese ◽  
Mukund A Kataktalware ◽  
Sakthivel Jeyakumar ◽  
D. N. Das ◽  
Kerekoppa P. Ramesha ◽  
...  

The present study was designed to analyse the relationship between age, body weight and testicular biometry in young Deoni males. A total of 36 young Deoni males were monitored for body weight and testicular biometry measurements monthly. The average (Mean±S.D.) scrotal circumference (cm) and testicular volume (cm3) in less than 7 months, 7-12 months, >12-18 months, >18-24 months and >24 months age groups were 10.79±1.99, 13.4±2.25, 17.47±3.48, 21.19±2.64 and 25.9±1.71, respectively and 22.75±13.23, 43.05±18.32, 98.30±67.38, 174.46±89.20 and 258.01±89.23, respectively. The maximum increase in body weight, scrotal circumference, testicular volume and testicular weight was observed from nine to 16 months of age in young Deoni males. Age of the bulls had a significant (P less than 0.05) effect on the testicular biometry parameters. The correlation of age and body weight with all testicular parameters was positive and significant (P less than 0.05). It is concluded that age, body weight and testicular biometry are positively and significantly correlated with each other.


2008 ◽  
Vol 70 (1) ◽  
pp. 119-121 ◽  
Author(s):  
Bhuminand DEVKOTA ◽  
Tsugio KOSEKI ◽  
Motozumi MATSUI ◽  
Motoki SASAKI ◽  
Etsushi KANEKO ◽  
...  

2009 ◽  
Vol 126 (5) ◽  
pp. 387-393 ◽  
Author(s):  
D.A. Grossi ◽  
G.C. Venturini ◽  
C.C.P. Paz ◽  
L.A.F. Bezerra ◽  
R.B. Lôbo ◽  
...  

Author(s):  
V.H. Shende ◽  
S.H. Sontakke ◽  
V.V. Potdar ◽  
Tejsjree V. Shirsath ◽  
J.R. Khadse

1982 ◽  
Vol 62 (4) ◽  
pp. 1049-1055 ◽  
Author(s):  
A. K. SHARMA ◽  
R. T. BERG

Relationships of scrotal circumference (SC) with body weight (BW) and backfat thickness (FT) as measured from scanograms were studied. A total of 935 observations on growing multibreed synthetic beef bulls on a postweaning performance test were available from a commercial herd for this study. Significant breed group, period and group × period interaction effects were noted on SC, BW and FT. BW and SC increased significantly during the test in all breed groups, while FT showed no change in three breed groups. Repeatability pooled across groups for SC was estimated as 0.72; 0.66 after adjusting for BW. Significant correlations were noticed between SC and BW within each breed group. Partial correlations between SC and BW at constant FT were not different from gross correlations. Linear regression coefficients of SC on BW were significant in all groups and showed heterogeneity among groups but not between periods within groups. Adjustments of SC for BW should, therefore, be breed group specific. BW alone accounted for considerable variation in SC, from 38 to 76%. Simple correlation coefficients between SC and FT were low and significant in only two groups. A significant but low positive relationship was noted between SC and FT at constant BW in a group fed a high-concentrate diet during the postweaning gain period, but there was no relationship in four other groups. Results indicated that the method of adjusting SC for FT as an indirect way of adjusting for scrotal fat was not satisfactory. Key words: Bulls, scrotal circumference, growth


1979 ◽  
Vol 11 (1) ◽  
pp. 227-230
Author(s):  
B. S. Mehta ◽  
N. Kandasamy ◽  
C. L. Arora

1992 ◽  
Vol 35 (2) ◽  
pp. 195-198 ◽  
Author(s):  
C. A. Morris ◽  
R. L. Baker ◽  
N. G. Cullen ◽  
P. Boyd

1992 ◽  
Vol 132 (3) ◽  
pp. 449-459 ◽  
Author(s):  
B. Pérez-Villamil ◽  
E. Bordiú ◽  
M. Puente-Cueva

ABSTRACT We have investigated the role of physiological prolactin levels in the development of prepubertal male rats. Prolactin GH and testosterone levels, as well as body, ventral prostate and testicular weight, have been analysed in both control and bromocriptine-treated rats between 21 and 60 days of life. Furthermore the role of prolactin in the regulation of its own receptors has also been studied during the same period. In control rats, prolactin levels showed a prepubertal peak of secretion at 25 days of age. At this time GH and testosterone levels were low and did not show any significant variation. After this age, prolactin levels increased more gradually; determinations of GH showed great variation with low levels in most of the rats and very high values in the other animals; testosterone levels remained low until day 35 after which they increased. Simultaneously with the serum prolactin peak on day 25, a decrease in prolactin-binding capacity of ventral prostate glands, was observed and a maximum rate of body, prostate and testicular weight gain was obtained. Furthermore, in rats with pharmacologically suppressed serum prolactin levels (lower than 1 μg/l), prolactin binding to prostate glands as well as the weight of body, ventral prostate and testes were lower than in control animals. When results were expressed in mg prostate or testes/g body weight, testes from 25-day-old treated rats weighed significantly less than controls. The later stages of development, from days 25 to 60, were characterized by an initial decline in serum prolactin levels at 29 days of age which was followed by a continuous increase until adult values were reached. During this period, prostatic prolactin receptors which were at their lowest value at 33 days of age showed a gradual rise parallel with the observed increase in plasma prolactin levels. When testicular tissue was analysed, no changes in prolactin-binding sites caused by sexual maturation were observed. The present results indicate that physiological prolactin secretion has a specific effect on the normal increase in the prostate, testes and body weight and clearly is also implicated in the regulation of its prostatic receptors at the earlier stages of development. Journal of Endocrinology (1992) 132, 449–459


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