Estimates of genetic parameters for linear body measurements and prediction of body weight in goat

Abstract

The objective of this study is to estimate genetic parameters for linear body measurements along with their correlation to live weight with a focus on devising a scale to predict live weights from body measurement. A total of 142,564 records on body measures and live weights were collected from 8701 Jamunapari goats. Genetic parameters were obtained for body length (L), height at withers (H) and heart girth (G) from birth to adult stage by univariate and multivariate analysis using the average information restricted maximum likelihood method. The best model for body measures at birth included the additive effect of animal and dam along with their covariance and maternal environment, whereas for traits measured later in life, the maternal environment was not significant. After accounting for the direct maternal correlation (ram), the total heritability estimates for linear body measurements (L,H and G) at the preweaning and postweaning stages of growth ranged from 0.14 to 0.20. Significant genetic variability implies further scope for selection. The genetic correlations of live weight at birth, 3, 6, 9 and 12 months with corresponding L,H and G were high in magnitude indicating scope to select animals for higher weight using morphometric measurements. When weighing scales are unavailable in the field, prediction of weight using L and G was recommended [live weight = (0.291 × L) + (0.306 × G) − 16.8]. We recommend the use of body measurements in the Jamunapari goat breeding program owing to their high genetic correlation with corresponding live weights.

The level of reproductive hormones of Boer goats based on type of birth: triplets and singles

“…c. Shoulder Height (SH): Assessed as the distance from the highest point of the shoulder/spinous vertebrae thoracalis through the back of the elbow /olecranon, measured perpendicular to the ground (cm). d. Chest Circumference (CC): Measured right around the back of the elbow/lecranon (cm) [11,12]. e. Livestock Body Temperature (BT): Determined by inserting a thermometer into the anal opening (rectum) for approximately 1 minute.…”

Karakteristik Ukuran Tubuh Kambing Senduro Asal Senduro Lumajang Jawa Timur

“…Sifat morfometrik tubuh dapat digunakan sebagai kriteria seleksi. Dige et al (2022) merekomendasikan penggunaan pengukuran tubuh dalam program pembibitan kambing jamnampari karena korelasi genetik yang tinggi dengan bobot hidup yang sesuai. Korelasi bobot badan tertinggi adalah dengan lingkar dada (0,87) serta panjang badan dengan tinggi badan (0,80), hal tersebut sejalan dengan laporan hasil penelitian Netsanet et al (2017).…”

Effects of Dietary Inclusion of Tannin-Rich Sericea Lespedeza Hay on Relationships among Linear Body Measurements, Body Condition Score, Body Mass Indexes, and Performance of Growing Alpine Doelings and Katahdin Ewe Lambs

“…Heart girth alone or combined with body length and wither height measurements in Malabari female adult goats predicted BW with good accuracy [ 16 ]. Genetic correlations of BW with length, heart girth, and wither height were high in Jamunapari goats, indicating the scope of genetic selection for higher BW using these linear body measurements [ 17 ]. Heart girth and length were found to be appropriate predictors of BW and selection indicators to improve genetic merit in BW of sheep and goats [ 1 , 10 , 18 ].…”