Academic Journal
Pre- and Post-Slaughter Methodologies to Estimate Body Fat Reserves in Lactating Saanen Goats
| العنوان: | Pre- and Post-Slaughter Methodologies to Estimate Body Fat Reserves in Lactating Saanen Goats |
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| المؤلفون: | Leonardo Sidney Knupp, Mondina Francesca Lunesu, Roberto Germano Costa, Mauro Ledda, Sheila Nogueira Ribeiro Knupp, Marco Acciaro, Mauro Decandia, Giovanni Molle, Ana Helena Dias Francesconi, Antonello Cannas |
| المصدر: | Animals, Vol 11, Iss 5, p 1440 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Veterinary medicine LCC:Zoology |
| مصطلحات موضوعية: | body condition score, body measurements, fat depots, goats, prediction equation, ultrasound, Veterinary medicine, SF600-1100, Zoology, QL1-991 |
| الوصف: | This work aimed to compare pre- and post-slaughter methodologies to estimate body fat reserves in dairy goats. Twenty-six lactating Saanen goats ranging from 43.6 to 69.4 kg of body weight (BW) and from 1.84 to 2.96 of body condition score (BCS; 0–5 range) were used. Fifteen pre-slaughter and four post-slaughter measurement values were used to estimate the weight of fat in the omental (OM), mesenteric (MES), perirenal (PR), organ (ORG), carcass (CARC), and non-carcass components (NC) and total (TOT, calculated as the sum of CARC and NC) depots in goats. The pre-slaughter measurements were withers height; rump height; rump length; pelvis width; chest depth; shoulder width; heart girth; body length; sternum height; BW; BCS assessed in the lumbar (BCSl) and sternal (BCSs) regions; and fat thickness measured by ultrasound in the lumbar (FTUSl), sternal (FTUSs), and perirenal (FTUSpr) regions. The post-slaughter measurements were hot carcass weight (HCW), empty body weight (EBW), and fat thickness measured by digital caliper in the lumbar (FTDCl) and sternal (FTDCs) regions. Linear and multiple regressions were fit to data collected. BW, BCS (from lumbar and sternal regions), all somatic measurements, and fat thickness measured by ultrasound in the lumbar and sternal regions were not adequate to estimate the weight of total fat in lactating Saanen goats (R2 ≤ 0.55). The best pre-slaughter and post-slaughter estimators of OM, MES, PR, ORG, NC, and TOT fat were FTUSpr and EBW, respectively. Among pre- and post-slaughter measurements, BCSl (R2 = 0.63) and HCW (R2 = 0.82) provided the most accurate predictions of CARC fat, respectively. Multiple regression using the pre-slaughter variables FTUSpr, BW, and BCSl yielded estimates of TOT fat with an R2 = 0.92 (RSD = 1.14 kg). On the other hand, TOT fat predicted using the post-slaughter variables HCW and FTDCs had an R2 = 0.83 (RSD = 1.41 kg). These results confirm that fat reserves can be predicted in lactating Saanen goats with high precision using multiple regression equations combining in vivo measurements. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2076-2615 |
| Relation: | https://www.mdpi.com/2076-2615/11/5/1440; https://doaj.org/toc/2076-2615 |
| DOI: | 10.3390/ani11051440 |
| URL الوصول: | https://doaj.org/article/07b211243c0f46a4b1704fea3d2e307e |
| رقم الانضمام: | edsdoj.07b211243c0f46a4b1704fea3d2e307e |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20762615 |
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| DOI: | 10.3390/ani11051440 |